US20200079479A1 - Retractable Power Drive Surfboard for Wave Foils - Google Patents
Retractable Power Drive Surfboard for Wave Foils Download PDFInfo
- Publication number
- US20200079479A1 US20200079479A1 US16/550,211 US201916550211A US2020079479A1 US 20200079479 A1 US20200079479 A1 US 20200079479A1 US 201916550211 A US201916550211 A US 201916550211A US 2020079479 A1 US2020079479 A1 US 2020079479A1
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- United States
- Prior art keywords
- mast
- strut
- foil
- surfboard
- fuselage
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- B63B35/7943—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/26—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type having more than one hydrofoil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/248—Shape, hydrodynamic features, construction of the foil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
- B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
- B63B1/24—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type
- B63B1/28—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils
- B63B1/30—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydrofoil type with movable hydrofoils retracting or folding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/10—Motor-propelled water sports boards
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/64—Adjustable, e.g. by adding sections, by removing sections or by changing orientation or profile
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- B63B35/7923—
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- B63B35/7926—
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/16—Propellers having a shrouding ring attached to blades
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
Definitions
- the present invention relates to personal watercraft; specifically, an electrically powered hydrofoil surfboard that is steered by weight shifts and able to retract its power structure to free surf without it.
- This application includes a reinforced surfboard that has its bottom surface connected to a wave riding foil that comprises a single mast that is approximately 7′′ wide and can range between 2 and 3 feet long and has an equal side toil shape, wherein the top has a mast head that inserts into the surfboard's bottom cavity.
- the bottom of the mast is connected to a fuselage that is approximately 27′′ long by 2′′ square tapering to 1′′ at the tail end.
- the front of the fuselage is connected to a large delta shaped front foil that is approximately 34′′ long by about 12′′ wide and is foil shaped with a maximum thickness of 2.5′′ down to 0.1′′.
- the smaller aft foil is attached at the opposite end of the fuselage and can be presented in different shapes and sizes but still be effective in stabilizing the front foil's lift to drag balancing act that takes place at anywhere between 3′′ and 33′′ below the ocean's surface.
- the front foil has a convex upper surface with a concave bottom surface wherein the aft foil has tire opposite . . . a concave upper surface and a convex bottom surface.
- This is basically an airplane under water which in turn could be seen as D. Bernoulli's 18 th Century Principle of Foils lifting objects heavier than air or water that all airplane wings are based on, wherein no doubt D. Bernoulli's Principle is at work on these new surfboard to surf foil designs with a caveat . . . wave propulsion was not considered in the Swiss scientist's proforma.
- an airplane's forward thrust is provided by an engine and propeller, a kite foil's forward thrust is provided by the wind.
- a wave foil's forward thrust is provided by the various energies present in all ocean or lake waves; and require different designs. All waves have a forward moving, circular rolling inner-wave energy pulse. On large ocean swells wave foils travel along diving and lifting in the thick water stream moving up the wave's face and give the rider a long downslope ride. Whereas on a small wave the same foil can glide along effortlessly on top of the energy pulse itself.
- the aft foil or “tail stabilizer” has a smaller size and an opposite convex to concave shape from the front foil wherein it flips the lift to drag equation to opposite as the water flows through them. This allows rider control to reach new heights! Even enabling top riders to self-propel themselves by pumping it like a skateboard on flat water without any motor or wave.
- the aft foil stabilizer is crucial in allowing this forward to backward self-propelling movement by skateboard enthusiasts on flat water.
- the thickness of the front foil particularly at the fore front of the leading edge gives the wave foil the ability to lift at slow speeds as outlined in Aguera U.S. Pat. No. 9,789,935B1.
- This new wave foil's unique structure and special shapes that have the designed intent to gain forward movement in a water environment is un-precedented!
- This combination can lift a 250 lb. man and his surfboard two feel above the surface of the water and glide with very little resistance at high speeds on large un-broken wave swells or on waves as small as 1 foot traveling 3 times as fast as a regular surfboard could go, as well as enabling a smooth ride even in choppy surface conditions.
- the modern wave foil can also be motorized. This is great for flat water foiling along at high speeds smoothly passing through choppy surface conditions without pounding, and moving forward in a marine environment with little resistance allowing battery life to triple compared to a motorized surfboard.
- the drawback of the motorized foil is that when the large propeller and cort nozzle are not under power the motorized foil can't glide, ride waves or be pumped like a skateboard on flat water . . . so the need for a wave foiled surfboard that can do both is surmised.
- Embodiments of the present invention improve upon the powered hydrofoil surfboard because it offers dual functionality, longer ran times and requires balance skills to operate especially when riding waves wherein making it more exhilarating, more interesting and more fun than just flat water cruising which is mostly all that single use powered hydrofoil surfboards do.
- Embodiments of the present invention improve upon the non-powered hydro foil surfboard by reducing the effort required in paddling and by allowing long destination transportation to outside reefs or to motor out to a passing ferry boat to hitch a ride on its wake, retract the power means, then free foil the boat wake from land mass to land mass.
- the intent of the present invention is to offer the best of both worlds so to speak, being able to motor around on flat water at high speed making weight shifts only to execute turns using the same method of control that is central to the experience of surfing, snowboarding and skateboarding, then to be able one up that by putting away the power structure while in motion to free foil a wake or swell under the wave's power only without having to have worked your but off to catch it makes this drive then glide concept a surfer's ultimate dream ride.
- FIG. 1 shows a down turned Hawaiian wave foil 1 (minus a surfboard and rider) diving into the heavy water stream moving up a large ocean swell face.
- FIG. 2 shows the same wave foil 1 as shown in FIG. 1 but with a surfboard 3 and rider attached, its front foil hovered over a small wave's energy pulse.
- FIG. 3 shows a side view of an East Coast up-turned tail wave foil attached to a 5′6′′ long surfboard.
- FIG. 4 shows a smaller scale bottom view of the same surfboard and wave foil as in FIG. 3 .
- FIG. 5 shows a frontal underside view of the East Coast wave foil.
- FIG. 6 shows a close side view of a four pan upturned tail wave foil 2 , with the mast cutaway.
- FIG. 7 shows an angled overhead view of a complete three piece downturned tail Hawaiian wave foil 1 .
- FIG. 8 shows how the front and tail foils can connect by a tapered male square shape entering a female square shape.
- FIG. 9 shows an angled bottom side view of a three piece Hawaiian wave foil.
- FIG. 10 shows a mast head receiver box 12 that is installed into a surfboard's underside that should receive additional structural reinforcement in the surrounding area of the surfboard's bottom.
- FIG. 11 shows a frontal view of the three piece downturned tail Hawaiian wave foil 1 .
- FIG. 12 shows an outside side view of the servo driven retractable motorized foil 2 and surfboard 3 in the up, or gliding position.
- FIG. 13 shows a see-through side view of the servo driven retractable motorized foil and surfboard as seen in FIG. 14 but in the down, or running position.
- FIG. 14 shows a see-through side view of the servo driven retractable motorized foil and surfboard in the up, or gliding position.
- FIG. 15 shows a see-through top view of the servo driven retractable motorized foil and surfboard.
- FIG. 16 shows a side view of one embodiment of a retractable motorized foil surfboard
- FIG. 17 shows the same embodiment as in FIG. 16 except the motorized unit's case 54 , strut 50 and propeller 16 are in the down, or drive position.
- FIG. 18 shows a top view of said surfboard 3 attached to the Hawaiian wave foil.
- FIG. 19 shows a see-through side view of a surfboard 3 with battery boxes 20 , control box 21 and a wire take-up box 67 .
- FIG. 19A shows a see through close-up view of the parts mentioned in FIG. 19 in the up, or glide position.
- FIG. 20 shows everything shown in FIG. 19 but with the motor case 54 and the strut 50 with prop and cort nozzle 16 in the down, or drive position.
- FIG. 20A is a see through close-up view of the pivot hanger 48 holding up the waterproof case 54 .
- FIG. 21 shows a see-through top view of the surfboard 3 showing the front foil 10 appearing out from under it.
- FIG. 22 shows a see-through angled view of the waterproof case 54 , strut 50 and propeller 16 connected into one unit.
- FIG. 23 shows a see-through side view of the surfboard 3 and the three part Hawaiian wave foil 1 with the present invention's retractable motor and prop surf foil showing three stages of movement.
- FIG. 24 shows a side view of the surfboard 3 attached to the three part Hawaiian wave foil 1 showing a second embodiment of the shafted strut 50 design with a split gear retractable motor and propeller unit.
- FIG. 25 shows a surfboard 3 attached to the three part Hawaiian wave foil 1 connected to the second embodiment of a retractable shaft driven strut 50 with motor and propeller unit 16 that shows the split gear version in the down, or drive position.
- FIG. 26 shows a top view of the battery laden surfboard 3 with the front foil peering out from underneath it 10 .
- FIG. 27 shows a see-through side view of the split gear version of the retractable unit showing the separating gears
- FIG. 27A shows a close-up sec through side view of the motor 53 , gears 56 and servo 18 area as shown and described in FIG. 27 .
- FIG. 28 shows the same embodiment as seen in FIG. 27 except the strut 50 prop and cort nozzle 16 are in the down, or drive position.
- FIG. 28A shows a close-up see through side view of the split gear version of the retractable unit in the down, or drive position.
- FIG. 29 shows a see-through top view of the surfboard 3 ladened with battery 20 revealing the side mounted motor 53 .
- FIG. 30 shows a see-through side view of a mast head 8 attached to a surfboard 3 employing a two degree spacer set 61 .
- FIG. 31 shows the same mast head box 12 mast head 8 and mast 9 as in FIG. 30 but with a two piece zero degree spacer kit 66 .
- FIG. 32 shows a side view of two Hawaiian wave foils 1 .
- FIG. 33 shows the three piece, 2 degree spacer set unattached.
- FIG. 34 shows the two piece, 0 degree spacer set unattached.
- FIG. 35 shows an angled top view of the mast box 12 .
- FIG. 36 shows a sec-through side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 36A shows a cross section top view of the pulley mast that shows two of the four roller bearings 36 inside the square channel they travel in.
- FIG. 37 shows an outside side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 38 shows a see-through side view of the pulley driven mast traveler foil and surfboard as seen in FIG. 36 but in the up, or gliding position.
- FIG. 39 shows a see-through top view of the pulley driven mast traveler motorized foil and surfboard.
- FIG. 40 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 41 shows an outside view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 42 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard as seen in FIG. 40 but in the up, or gliding position.
- FIG. 43 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard.
- FIG. 44 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard showing the control box 21 and battery banks 20 .
- FIG. 45 shows a larger see-through top view of ail independent wheel driven mast traveler fuselage with the two parts separated at the forefront of the mast 9 .
- FIG. 46 shows a see-through side view of the independent wheel driven mast traveler as outlined in FIG. 45 .
- FIG. 47 shows a see-through side view of a mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 48 shows an outside view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 49 shows a see-through side view of the wheel driven mast traveler and side view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the up, or glide position.
- FIG. 50 shows a see-through top view of the mast plug-in wheel driven mast traveler fuselage 22 wherein it shares all the same components and construction as in FIG. 45 except the nose cone battery pack 45 find the left side battery pack 41 are missing.
- FIG. 51 shows three in-line ball bearing brushless motor wire 100 connectors in different stages of movement.
- FIG. 51A shows a top connector with a bearing cap 85 and shaft 86 that rides up and down through a shaft tube 87 .
- FIG. 51B is also seen with the top connector ball 24 and cap 85 fully extended except this drawing shows the bottom connector pushed in to the point of making contact.
- FIG. 51C shows the top connector housing 93 with the ball hearing 24 and cap 85 pushed way up showing the rubber coated steel spring 90 fully compressed and the cap shall 86 pushed to the top of the shaft tube 87 at tube's 87 end.
- FIG. 52 shows a see-through side view of an underwater connectable charging plug 38 both disconnected A and connected B wherein there is a male side and a female side that is filled with di-electric grease.
- FIG. 52 A shows a see-through side view of an underwater charging plug 38 revealing positive 82 and negative 83 wires entering a composite plug housing 96 that is the back of the male side of the Exalta plug system.
- FIG. 52B shows an outside side view of the male top half of the Exalta waterproof plug 38 and a see-through side view of the female bottom half of plug 38 as seen inserted.
- FIG. 1 shows a down turned wave foil 1 (minus a surfboard and rider) diving into the heavy water stream moving up a large ocean swell face.
- FIG. 2 shows the same wave foil 1 as shown in FIG. 1 but with a surfboard 3 and rider attached, its front foil hovered over a small wave's energy pulse.
- FIG. 3 shows a side view of an Fast Coast up-turned tail wave foil attached to a 5′6′′ long surfboard wherein a wave foil comprises a mast 4 , a fuselage 6 , a large delta shaped front foil 5 find an upturned tail stabilizer 7 .
- FIG. 4 shows a smaller scale bottom view of the same surfboard and wave foil as in FIG. 3 .
- FIG. 5 shows a frontal underside view of the wave foil revealing a continuous downturned curve shape to the front foil that is attached to the underside of the fuselage that tapers towards the upturned stabilizer.
- the mast and mast head are seen along with the twin screw attachment to the fuselage.
- FIG. 6 shows a close side view of a four part upturned tail wave foil 2 , with the mast cutaway.
- FIG. 7 shows an angled overhead view of a complete three piece downturned tail Hawaiian wave foil 1 .
- FIG. 8 shows how the front and tail foils can connect by a tapered male square shape entering a female square shape.
- FIG. 9 shows an angled bottom side view of a three piece downturned tail wave foil 1 that comprises a one piece mast, mast head and fuselage 9 that connects to a downturned front foil 10 and a downturned tail stabilizer 11 .
- FIG. 10 shows a mast head receiver box 12 that is installed into a surfboard's underside that should receive additional structural reinforcement in the surrounding area of the surfboard's bottom.
- FIG. 11 shows a frontal view of the three piece downturned tail Hawaiian wave foil 1 revealing the front foil's extensive strait section 10 with downturned ends wherein the foil line is visible as is the fuselage 9 tapering back to the down turned tail stabilizer 11 .
- a front view of the mast 9 and mast head 8 is seen crossing FIG. 9 .
- FIG. 12 shows an outside side view of the servo driven retractable motorized foil 2 and surfboard 3 in the up, or gliding position.
- FIG. 13 shows a see-through side view of the servo driven retractable motorized foil and surfboard as seen in FIG. 14 but in the down, or running position.
- FIG. 14 shows a see-through side view of the servo driven retractable motorized foil and surfboard in the up, or gliding position revealing a servo 18 inside the surfboard's body connected to a separate propeller strut 13 that comprises an actuation arm 19 , an axle-bolt connecting the mast to a mast head housing 17 with stops for the up and down positions, the bottom of the mast is the torpedo shaped housing 15 that holds the motor, shaft and gear box 42 connected to live prop and cort nozzle 16 .
- FIG. 15 shows a see-through top view of the servo driven retractable motorized foil and surfboard revealing the control box 21 and battery banks 21 as well as the servo 18 and actuation arm in the down position.
- FIG. 16 shows a side view of one embodiment of a retractable motorized foil surfboard.
- a 5′6′′ surfboard 3 is shown attached to a Hawaiian wave foil 1 that comprise a long mast 9 that is a molded part of a fuselage that is connected to a front foil wing 10 and a foiled aft tail wing 11 wherein the present invention's retractable motorized unit is shown in the up, or glide position.
- the waterproof motor and gearbox case 54 with subframe is seen hanging down at a 45 degree angle to the mast 50 that contains a shaft 58 and bearings that is connected to a cort nozzle and propeller 16 .
- FIG. 17 shows the same embodiment as in FIG. 16 except the motorized unit's case 54 , strut 50 and propeller 16 are in the down, or drive position.
- the shafted mast 45 sits parallel to the foil mast 9 having the propeller mounted at a 90 degree angle to both masts producing strait forward thrust, neither climbing towards the surface nor dropping towards the bottom.
- FIG. 18 shows a top view of said 5′6′′ surfboard revealing the front foil 10 , battery boxes 20 and a traction pad 46 .
- FIG. 19 shows a see-through side view of a 5′6′′ surfboard 3 with battery boxes 20 , control box 21 and a wire take-up box 67 .
- a high torque servo 18 is seen near a mast with a shaft strut and bearings 50 which supports a propeller and cort nozzle 16 with a lower gear box 47 wherein a pivot hanger 48 and axle support all that plus a waterproof case 54 that contains a gear set 49 and a brushless motor 53 .
- the three part Hawaiian wave foil 1 that includes a rigid mast and fuselage 9 that connects to a front foil 19 and a downturned tail foil 11 .
- FIG. 19A shows a see through close-up view of the parts mentioned in FIG. 19 in the up, or glide position.
- FIG. 20 shows everything shown in FIG. 19 hut with the motor case 54 and the strut 50 with prop and cort nozzle 16 in the down, or drive position.
- FIG. 20A is a see through close-up view of the pivot hanger 48 holding up the waterproof case 54 that contains a gear set 49 and a brushless motor 53 which is connected to a shaft and bearings strut 50 .
- FIG. 21 shows a see-through top view of the 5′6′′ surfboard 3 showing the front foil 10 appealing out from under it.
- the four battery banks 20 air seen connected to a charging outlet 55 , a control box 21 and to a motor wire take-up box 67 which in turn connects to the brush less motor 53 showing a top view of a bevel gear set 49 and a high torque servo 18 with arm.
- FIG. 22 shows a see-through angled view of the waterproof case 54 , strut 50 and propeller 16 connected into one unit.
- a twin fan cooling jacket 68 is seen surrounding the brushless motor 5 . 3 inside the waterproof case 54 showing the motor's aluminum cooling fins 69 and showing the cooling jacket's air exit vents 70 .
- the gear set 49 is seen connected to a strut with a shaft with bearings 50 that connects to a lower gear box with bearings 47 that connects to said cort nozzle and propeller 16 .
- FIG. 23 shows a see-through side view of the surfboard 3 and the three part Hawaiian wave foil 1 with the present invention's retractable motor and prop surf foil showing three stages of movement.
- the up, or glide position shows the servo arm 19 swung all the way forward from the servo 18 pitching the case 54 downward.
- the mid travel position shows the strut 50 half way down and the servo arm 19 in it's middle position.
- the down or drive position shows the strut 50 ail the way down and parallel to the foil mast 9 showing the servo arm 19 all the way aft.
- FIG. 24 shows a side view of the surfboard 3 attached to the three part Hawaiian wave foil 1 showing a second embodiment of the shafted strut 50 design with a split gear retractable motor and propeller unit enabling the motor to stay attached to the surfboard's body and not swing down and away like the unit outlined in FIGS. 16 through 23 wherein it also offers an angled motor mount moving the weight bias forward wherein the fall away bevel gear 56 is seen held in place by the fall away mast hanger 59 that doubles as a mast stop 59 .
- This view shows the split gear version in the up, or glide position.
- FIG. 25 shows a 5′6′′ surfboard 3 attached to the three part Hawaiian wave foil 1 connected to the second embodiment of a retractable shaft driven strut 50 with motor and propeller unit 16 that shows the split gear version in the down, or drive position wherein the mast hanger 59 is seen stopping the strut 50 parallel to the foil mast 9 setting the propeller and cort nozzle 16 at the correct driving angle when in the down, or drive position.
- FIG. 26 shows a top view of the battery laden surfboard 3 with the front foil peering out from underneath it 10 .
- Battery box covers 20 are seen as well as the traction pad 46 .
- FIG. 27 shows a see-through side view of the split gear version of the retractable unit showing the separating gears having fallen away from each other and positioning the strut 50 prop and nozzle 16 in the up, or glide position.
- FIG. 27A shows a close-up see through side view of the motor 53 , gears 56 and servo 18 area as shown and described in FIG. 27 .
- FIG. 28 shows the same embodiment as seen in FIG. 27 except the strut 50 prop and cort nozzle 16 are in the down, or drive position . . . that sees the strut 50 mounted parallel to the Hawaiian wave foil mast 9 but noticeable much closer than the embodiment shown in FIGS. 16 through 23
- FIG. 28A shows a close-up see through side view of the split gear version of the retractable unit in the down, or drive position showing the bevel gear set 56 engaged and the servo arm 19 and the connect arm 57 pushed downward.
- the mast hanger 59 is seen doubling as a rigid strut 50 stop.
- FIG. 29 shows a se-through top view of the surfboard 3 ladened with battery 20 revealing the side mounted motor 53 allowing the motor 53 and strut 50 weight to be moved forward without getting in the way of the mast head 8 .
- the four to one gear set 56 is seen near the servo 18 .
- FIG. 30 shows a see- through side view of a mast head 8 attached to a surfboard 3 employing a two degree spacer set 61 that changes the mast's 9 angle in relation to the surfboard's bottom surface, or angle of incidence for the entire three part Hawaiian wave foil 1 lessening the tendency of the front foil to climb then breach the water surface resulting in a wipeout.
- the oval head machine screws 64 are seen seated in the cupped finish washers 63 attached at an angle because of the top wedge spacer 61 and the angled spacers 61 creating a two degree change in the mast's 9 angle of incidence where the spacer keeps 62 are seen holding the spacers 61 in place embodying a bent shape.
- These spacer sets could be offered in 1, 2, 3 or 4 degree versions.
- the mast head box 12 is seen in a darker shade depicting it's carbon fiber construction.
- FIG. 31 shows the same mast head box 12 mast head 8 and mast 9 as in FIG. 30 but with a two piece zero degree spacer kit 66 installed showing the oval head machine screws 64 in a straight up position and centered in the cupped finish washers 63 and rotating inserts 65 wherein the spacer keeps 62 are seen spanning strait across the bottom surface.
- FIG. 32 shows a side view of two Hawaiian wave foils 1 wherein one embodiment is held in place by the mast box with the three piece. 2 degree spacer set 61 installed. The other embodiment is held in place by the two piece, 0 degree spacer kit 65 demonstrating the difference in the attack angle of the front foil created by a 2 degree shift at the mast head.
- FIG. 33 shows the three piece, 2 degree spacer set unattached.
- FIG. 34 shows the two piece, 0 degree spacer set unattached.
- FIG. 35 shows an angled top view of the mast box 12 wherein it embodies an inside shape that requires the mast head to be shaved at its ends to allow room for the spacer sets 61 and 66 .
- FIG. 36 shows a see-through side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position wherein the motor 53 and prop 16 travel up and down the mast 33 via cables pulling a stainless steel plate 31 up and down that has roller hearings 35 attached which travel along a channel inside the mast which also has a slice cut out of the trailing edge to accept the thin stainless plate and to help guide its vertical path.
- the mast also has other hollow areas (shown in FIG. 36A ) that allow space for two pulleys 29 , the pulley cables 27 and a power cord 28 .
- a side view of the control box 21 and battery banks 20 is also visible in the surfboard's body.
- FIG. 36A shows a cross section top view of the pulley mast that shows two of the four roller bearings 36 inside the square channel they travel in.
- the stainless steel plate 31 edge can be seen in its slot that leads to the pulley cable and power cord cavities that are seen along with the pulldown cable hole 37 .
- the torpedo shaped motor housing is seen with its frontal facade split around the mast's foil shaped surface.
- FIG. 37 shows an outside side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 38 shows a see-through side view of the pulley driven mast traveler foil and surfboard as seen in FIG. 36 but in the up, or gliding position.
- FIG. 39 shows a see-through top view of the pulley driven mast traveler motorized foil and surfboard revealing the control box 21 and battery hanks 20 , the pulley torrent 25 , the power cord torrent 26 , the pulley cables 27 , and the mast head opening and the DC wire 28 .
- FIG. 40 shows a see-through aide view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- This view shows a cort nozzle and propeller 16 , a shaft gear box 42 and motor 53 , a radio receiver 43 , and a three motor controller 44 revealing a side view of the mast crawling wheels with a mini motor and gearbox 39 and twin battery packs in between them.
- FIG. 40 also shows a charging plug 38 attached to the underside of the surfboard's body as well as the battery bank 20 and control box 21 .
- FIG. 41 shows an outside view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 42 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard as seen in FIG. 40 but in the up, or gliding position.
- FIG. 43 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard, motor and prop setup with a cut away mast section showing the travel wheels 40 with mini motors 39 tightened up against the mast's 9 edges.
- FIG. 44 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard showing the control box 21 and battery banks 20 .
- FIG. 45 shows a larger see-through top view of an independent wheel driven mast traveler fuselage with the two parts separated at the forefront of the mast 9 revealing the long front end damp bolts 71 detached from the threaded inserts 75 , also showing the front end travel wheel 40 away from the edge of the mast 9 .
- Reduction gears and the mini motor 39 are seen connected to the travel wheel 40 .
- a water proof wall 74 is seen bending around the mini motor 39 wherein the mini motor's shaft is waterproofed by a grease tube and an O ring in some way as it passes between the wet portion of the independent motor in fuselage with gearbox 30 separating it from a dry portion of the fuselage 30 containing said mini motor 39 , a radio or Bluetooth receiver 43 , a mini charger and a three motor controller 44 , and a nose cone battery pack 45 .
- the mast side battery packs 41 are seen in the aft half of the fuselage 30 placed on each side of the foil mast 9 and shaped cavity 72 that accommodates it.
- All three battery packs 45 , 41 are connected and run two mini motors 39 and the main propulsion motor 53 seen on the other side of the second waterproof wail 74 making a dry space for said motor 53 and a reduction gearbox 42 wherein a shaft 76 is seen in a grease lube with a grease fitting 77 preventing water from entering the dry space through the third waterproof wall 74 where the shaft 76 extends out to the propeller and cort nozzle 16 .
- FIG. 46 shows a see-through side view of the independent wheel driven mast traveler as outlined in FIG. 45 showing a side view of nose cone wire terminal 60 .
- FIG. 47 shows a see-through side view of a mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position revealing three brushless motor wires 100 that are molded into the foil mast 9 that end at the ball bearing contact system 101 shown close up in FIG. 51 also showing the same fuselage 30 as shown in FIG. 45 but without live nose cone battery pack 45 .
- FIG. 48 shows an outside view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position.
- FIG. 49 shows a see-through side view of the wheel driven mast traveler and side view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the up, or glide position, wherein it is charging the travel wheels battery pack 41 revealing in line ball connectors on lower mast 101 .
- FIG. 50 shows a see-through top view of the mast plug-in wheel driven mast traveler fuselage 22 wherein it shares all the same components and construction as in FIG. 45 except the nose cone battery pack 45 and the left side battery pack 41 are missing, wherein the nose cone pack 45 isn't needed because the motor is connected to the large battery storage 20 incased inside the surfboard's body 3 .
- the fuselage plugs in down low on the mast 9 by way of a rolling ball bearing connection system 101 .
- a single mast side battery pack 41 remains to run the travel wheels 40 wherein it van be charged when the fuselage 22 is in its glide mode by the charging inlet 14 being penetrated by the charging plug 38 as seen in FIG. 47 .
- FIG. 51 shows three in-line ball bearing brushless motor wire 100 connectors in different stages of movement.
- FIG. 51A shows a top connector with a bearing cap 85 and shaft 86 that rides up and down through a shaft tube 87 and moved by a rubber coated spring 90 that sits in a circular housing 93 with the ball bearing 24 fully extended resting on a flat surface wherein the bottom connector is seen sprung all the way out flush to its surrounding surface and in a disconnected position wherein a set of di electric grease bladders 84 are not expanded.
- FIG. 51B is also seen with the top connector ball 24 and cap 85 fully extended except this drawing shows the bottom connector pushed in to the point of making contact from the steel ball 24 to the rubber sided copper plate 92 to the rubber coated copper pillar contact 91 to the brushless motor wire 100 . Note the rubber coated spring 90 is compressed and the two di-electric grease bladders 84 are expanded full of grease.
- FIG. 51C shows the top connector housing 93 with the ball bearing 24 and cap 85 pushed way up showing the rubber coated steel spring 90 fully compressed and the cap shaft 86 pushed to the top of the shaft tube 87 at tube's 87 end.
- the two grease bladders 84 are expanded. This demonstrates where the ball 24 and cap 85 are positioned as the ball 24 rolls up and down the mast 9 while un-connected to a battery source.
- FIG. 51C also shows the bottom connector demonstrating how far down the rubber faced copper plate 92 sits to make contact with the copper pillar 91 and shows the copper plate's 92 center that is non-rubber covered and shaped to fit the ball's 24 shape to make positive electrical contact in a bath of di-electric grease contained by the circular housing 93 . Note the expanded grease bladders.
- FIG. 52 shows a see-through side view of an underwater connectable charging plug 38 both disconnected A and connected B wherein there is a male side and a female side that is filled with di-electric grease.
- FIG. 52A shows a see-through side view of an underwater charging plug 38 revealing positive 82 and negative 83 wires entering a composite plug housing 96 that is the back of the male side of the Exalta plug system.
- the plug's penetration dowel comprises a composite band 99 next to a copper band 95 next to another composite band 99 wherein the negative wire 83 is seen soldered to a copper tube contact 95 at the furthest end of the plug 38 is the positive male copper needle contact 28 wherein the positive wire is seen soldered to the back of the needle contact 28 .
- the female side shows a flexible rubber membrane 9 - atop the composite tube shaped housing 96 that is filled with di-electric grease.
- the membrane 94 has a penetration point that is able to seal back up after the male dowel 99 and needle 28 withdraw keeping the water out and the di-electric grease in.
- the female copper contact 98 is seen amidst the di-electric grease wherein the wire 83 is seen connected to it whereas the positive wire 82 is seen connected to the female copper contact 97 that is also surrounded by di-electric grease. Note the female plug is un-connected, un-penetrated therefore the two grease bladders 84 are not expanded.
- FIG. 52B shows an outside side view of the nude top half of the Exalta waterproof plug 38 and a see-through side view of the female bottom half of plug 38 as seen inserted showing the male needle tip 28 contacting the female copper contact 97 completing the positive wire connection wherein the negative male copper contact tube 95 is tightly fit into the female copper contact tube 98 completing the negative connection.
- the expanding grease bladders
- Aguera's U.S. Pat No. 9,789,935 B1 outlines a three part apparatus that lifts a paddleboard and rider above the wave's surface as a rider maintains a slow speed in the water via paddeling. Furthermore, claims by Aguera concerning maximum thickness at first distance from the fore edge is the key to lifting a 250 lb man at slow paddling speeds on a heavy paddleboard whereas in 2018 the best surfers in Hawaii are catching waves by prone paddling small boards without a paddle, by standing up as the foil lifts and catches a wave. As difficult as this is to do many young surfers are agile enough to master this skill. Aguera's design appears to be most responsible for making foils that lift at slow speed and with a heavy rider which bodes well for beginners learning to foil.
- Derrah has developed a drive-n-glide wave foil that has the advantage of dual functionality. It can motor around on flat water offering smooth rides with long run times. It can effortlessly catch a wave or swell under power and with the push of a button convert to a free gliding wave foil that can ride a swell for miles without power. None of the motorized surfboards or wave foils on the market are capable of catching and riding waves without power whereas Derrah's drive-n-glide design can ride on a wave's power done, gliding quietly with little resistance and using zero battery power.
- Aguera's hydrofoil based apparatus revolutionizes wave riding but provides no way to add motorized propulsion to his watercraft whereas Derrah's add on invention does, making Derrah's six motorized versions of a drive-n-glide wave foil with surfboard different than Aguera's hydro foil based apparatus.
- Langelaan's US 2017/028315 A1 discloses a personal hydrofoil watercraft that has a mast 103 , a front foil 102 , and a fuselage 201 with motor 105 and propeller and cort nozzle 104 but with no tail stabilizer. He outlines a version with a jet tube 401 placed underneath a front foil 102 with no tail stabilizer then shows a way to disconnect said front foil 102 from the fuselage 201 to use alternate shape and size front foils 102 and with the option of attaching two different tail stabilizers 804 , 805 wherein it is not clear how they attach with any of the three power means outlined.
- Derrah's six different versions of a drive-n-glide wave foil offer the advantage of dual functionality wherein three versions of Derrah's present invention have a vertical strut that holds a propeller and cort nozzle that completely retracts up and out of the water and wherein three other versions have a fuselage that contains a motor, propeller and cort nozzle that travel up the foil mast to touch the surfboard bottom, up and out of the water. All versions retracting any obstructions to water flow enabling the foil to do its job without power.
- Langelaan's powered hydrofoil board provides no means to disengage the obstructions to water flow whereas Derrah's six versions of a drive-n*glide wave foil provide the means to retract all obstructions to water flow.
- Trewern's patent application WOZA19/104378 A1 discloses a hydro foil system comprising a fuselage 10 a motor 11 a propeller and a cort nozzle 13 connected to a front wing 14 and having a tail wing and allowing for a mast that connects to a surfboard.
- This design is known worldwide as the Fliteboard. This is a sound design for a single use (flat water cruising) motorized foil board. However, it cannot ride a wave without the power on. With the power on it is restricted from full wave riding performance because the propeller, cort nozzle and fuselage all contribute to create drag and disturbance of water flow.
- Trewern's powered hydrofoil system is a sound design hydrofoil for powered flat water cruising but provides no means to retract the extraneous obstructions to water flow ie. fuselage, motor, propeller and cort nozzle in order to lift and glide on a wave like Derrah's drive-n-glide motorized wave foil does.
- the fact that all six versions of Derrah's drive-n-glide wave foil incorporate a means to retract obstructions wherein their intent is to use any top quality wave foil currently manufactured such as GoFoil, Naish, ect. to perform the lifting, gliding and free surfing demonstrates the difference between Trewern's foil system and Derrah's dual functionality foil designs.
- Control box 21 Control box
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Abstract
Description
- It should be noted that all the control mechanisms for these six new retractable motorized foil surfboards will be taken from Derrah's Drive-N-Glide Surfboard Patents U.S. Ser. No. 13/489,367 and U.S. Ser. No. 13/677,133 as they will work perfectly for these new motorized water toys.
- The present invention relates to personal watercraft; specifically, an electrically powered hydrofoil surfboard that is steered by weight shifts and able to retract its power structure to free surf without it.
- This application includes a reinforced surfboard that has its bottom surface connected to a wave riding foil that comprises a single mast that is approximately 7″ wide and can range between 2 and 3 feet long and has an equal side toil shape, wherein the top has a mast head that inserts into the surfboard's bottom cavity. The bottom of the mast is connected to a fuselage that is approximately 27″ long by 2″ square tapering to 1″ at the tail end. The front of the fuselage is connected to a large delta shaped front foil that is approximately 34″ long by about 12″ wide and is foil shaped with a maximum thickness of 2.5″ down to 0.1″. The smaller aft foil is attached at the opposite end of the fuselage and can be presented in different shapes and sizes but still be effective in stabilizing the front foil's lift to drag balancing act that takes place at anywhere between 3″ and 33″ below the ocean's surface.
- The front foil has a convex upper surface with a concave bottom surface wherein the aft foil has tire opposite . . . a concave upper surface and a convex bottom surface. This is basically an airplane under water which in turn could be seen as D. Bernoulli's 18th Century Principle of Foils lifting objects heavier than air or water that all airplane wings are based on, wherein no doubt D. Bernoulli's Principle is at work on these new surfboard to surf foil designs with a caveat . . . wave propulsion was not considered in the Swiss scientist's proforma. However, an airplane's forward thrust is provided by an engine and propeller, a kite foil's forward thrust is provided by the wind. A wave foil's forward thrust is provided by the various energies present in all ocean or lake waves; and require different designs. All waves have a forward moving, circular rolling inner-wave energy pulse. On large ocean swells wave foils travel along diving and lifting in the thick water stream moving up the wave's face and give the rider a long downslope ride. Whereas on a small wave the same foil can glide along effortlessly on top of the energy pulse itself.
- The aft foil or “tail stabilizer” has a smaller size and an opposite convex to concave shape from the front foil wherein it flips the lift to drag equation to opposite as the water flows through them. This allows rider control to reach new heights! Even enabling top riders to self-propel themselves by pumping it like a skateboard on flat water without any motor or wave. The aft foil stabilizer is crucial in allowing this forward to backward self-propelling movement by skateboard enthusiasts on flat water. The thickness of the front foil particularly at the fore front of the leading edge gives the wave foil the ability to lift at slow speeds as outlined in Aguera U.S. Pat. No. 9,789,935B1.
- This new wave foil's unique structure and special shapes that have the designed intent to gain forward movement in a water environment is un-precedented! This combination can lift a 250 lb. man and his surfboard two feel above the surface of the water and glide with very little resistance at high speeds on large un-broken wave swells or on waves as small as 1 foot traveling 3 times as fast as a regular surfboard could go, as well as enabling a smooth ride even in choppy surface conditions.
- Hydrofoils have been used on surfboards ( U.S. Pat. No. 5,062,378 A. Bateman; U.S. Pat. No. 3,747,138 Morgan; U.S. Pat. No. 7,144,285 B1 Tarcah)
- The modern wave foil can also be motorized. This is great for flat water foiling along at high speeds smoothly passing through choppy surface conditions without pounding, and moving forward in a marine environment with little resistance allowing battery life to triple compared to a motorized surfboard.
- The drawback of the motorized foil is that when the large propeller and cort nozzle are not under power the motorized foil can't glide, ride waves or be pumped like a skateboard on flat water . . . so the need for a wave foiled surfboard that can do both is surmised.
- Embodiments of the present invention improve upon the powered hydrofoil surfboard because it offers dual functionality, longer ran times and requires balance skills to operate especially when riding waves wherein making it more exhilarating, more interesting and more fun than just flat water cruising which is mostly all that single use powered hydrofoil surfboards do.
- Embodiments of the present invention improve upon the non-powered hydro foil surfboard by reducing the effort required in paddling and by allowing long destination transportation to outside reefs or to motor out to a passing ferry boat to hitch a ride on its wake, retract the power means, then free foil the boat wake from land mass to land mass.
- The intent of the present invention is to offer the best of both worlds so to speak, being able to motor around on flat water at high speed making weight shifts only to execute turns using the same method of control that is central to the experience of surfing, snowboarding and skateboarding, then to be able one up that by putting away the power structure while in motion to free foil a wake or swell under the wave's power only without having to have worked your but off to catch it makes this drive then glide concept a surfer's ultimate dream ride.
-
FIG. 1 shows a down turned Hawaiian wave foil 1 (minus a surfboard and rider) diving into the heavy water stream moving up a large ocean swell face. -
FIG. 2 shows thesame wave foil 1 as shown inFIG. 1 but with asurfboard 3 and rider attached, its front foil hovered over a small wave's energy pulse. -
FIG. 3 shows a side view of an East Coast up-turned tail wave foil attached to a 5′6″ long surfboard. -
FIG. 4 shows a smaller scale bottom view of the same surfboard and wave foil as inFIG. 3 . -
FIG. 5 shows a frontal underside view of the East Coast wave foil. -
FIG. 6 shows a close side view of a four pan upturnedtail wave foil 2, with the mast cutaway. -
FIG. 7 shows an angled overhead view of a complete three piece downturned tailHawaiian wave foil 1. -
FIG. 8 shows how the front and tail foils can connect by a tapered male square shape entering a female square shape. -
FIG. 9 shows an angled bottom side view of a three piece Hawaiian wave foil. -
FIG. 10 shows a masthead receiver box 12 that is installed into a surfboard's underside that should receive additional structural reinforcement in the surrounding area of the surfboard's bottom. -
FIG. 11 shows a frontal view of the three piece downturned tailHawaiian wave foil 1. -
FIG. 12 shows an outside side view of the servo driven retractable motorizedfoil 2 andsurfboard 3 in the up, or gliding position. -
FIG. 13 shows a see-through side view of the servo driven retractable motorized foil and surfboard as seen inFIG. 14 but in the down, or running position. -
FIG. 14 shows a see-through side view of the servo driven retractable motorized foil and surfboard in the up, or gliding position. -
FIG. 15 shows a see-through top view of the servo driven retractable motorized foil and surfboard. -
FIG. 16 shows a side view of one embodiment of a retractable motorized foil surfboard -
FIG. 17 shows the same embodiment as inFIG. 16 except the motorized unit'scase 54,strut 50 andpropeller 16 are in the down, or drive position. -
FIG. 18 shows a top view of saidsurfboard 3 attached to the Hawaiian wave foil. -
FIG. 19 shows a see-through side view of asurfboard 3 withbattery boxes 20,control box 21 and a wire take-up box 67. -
FIG. 19A shows a see through close-up view of the parts mentioned inFIG. 19 in the up, or glide position. -
FIG. 20 shows everything shown inFIG. 19 but with themotor case 54 and thestrut 50 with prop andcort nozzle 16 in the down, or drive position. -
FIG. 20A is a see through close-up view of thepivot hanger 48 holding up thewaterproof case 54. -
FIG. 21 shows a see-through top view of thesurfboard 3 showing thefront foil 10 appearing out from under it. -
FIG. 22 shows a see-through angled view of thewaterproof case 54,strut 50 andpropeller 16 connected into one unit. -
FIG. 23 shows a see-through side view of thesurfboard 3 and the three partHawaiian wave foil 1 with the present invention's retractable motor and prop surf foil showing three stages of movement. -
FIG. 24 shows a side view of thesurfboard 3 attached to the three partHawaiian wave foil 1 showing a second embodiment of the shaftedstrut 50 design with a split gear retractable motor and propeller unit. -
FIG. 25 shows asurfboard 3 attached to the three partHawaiian wave foil 1 connected to the second embodiment of a retractable shaft drivenstrut 50 with motor andpropeller unit 16 that shows the split gear version in the down, or drive position. -
FIG. 26 shows a top view of the batteryladen surfboard 3 with the front foil peering out from underneath it 10. -
FIG. 27 shows a see-through side view of the split gear version of the retractable unit showing the separating gears -
FIG. 27A shows a close-up sec through side view of themotor 53, gears 56 andservo 18 area as shown and described in FIG.27. -
FIG. 28 shows the same embodiment as seen inFIG. 27 except thestrut 50 prop andcort nozzle 16 are in the down, or drive position. -
FIG. 28A shows a close-up see through side view of the split gear version of the retractable unit in the down, or drive position. -
FIG. 29 shows a see-through top view of thesurfboard 3 ladened withbattery 20 revealing the side mountedmotor 53. -
FIG. 30 shows a see-through side view of amast head 8 attached to asurfboard 3 employing a two degree spacer set 61. -
FIG. 31 shows the samemast head box 12mast head 8 and mast 9 as inFIG. 30 but with a two piece zero degree spacer kit 66. -
FIG. 32 shows a side view of two Hawaiian wave foils 1. -
FIG. 33 shows the three piece, 2 degree spacer set unattached. -
FIG. 34 shows the two piece, 0 degree spacer set unattached. -
FIG. 35 shows an angled top view of themast box 12. -
FIG. 36 shows a sec-through side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 36A shows a cross section top view of the pulley mast that shows two of the fourroller bearings 36 inside the square channel they travel in. -
FIG. 37 shows an outside side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 38 shows a see-through side view of the pulley driven mast traveler foil and surfboard as seen inFIG. 36 but in the up, or gliding position. -
FIG. 39 shows a see-through top view of the pulley driven mast traveler motorized foil and surfboard. -
FIG. 40 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 41 shows an outside view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 42 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard as seen inFIG. 40 but in the up, or gliding position. -
FIG. 43 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard. -
FIG. 44 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard showing thecontrol box 21 andbattery banks 20. -
FIG. 45 shows a larger see-through top view of ail independent wheel driven mast traveler fuselage with the two parts separated at the forefront of the mast 9. -
FIG. 46 shows a see-through side view of the independent wheel driven mast traveler as outlined inFIG. 45 . -
FIG. 47 shows a see-through side view of a mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 48 shows an outside view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 49 shows a see-through side view of the wheel driven mast traveler and side view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the up, or glide position. -
FIG. 50 shows a see-through top view of the mast plug-in wheel drivenmast traveler fuselage 22 wherein it shares all the same components and construction as inFIG. 45 except the nosecone battery pack 45 find the leftside battery pack 41 are missing. -
FIG. 51 shows three in-line ball bearingbrushless motor wire 100 connectors in different stages of movement. -
FIG. 51A shows a top connector with abearing cap 85 andshaft 86 that rides up and down through ashaft tube 87. -
FIG. 51B is also seen with thetop connector ball 24 andcap 85 fully extended except this drawing shows the bottom connector pushed in to the point of making contact. -
FIG. 51C shows thetop connector housing 93 with the ball hearing 24 andcap 85 pushed way up showing the rubber coated steel spring 90 fully compressed and the cap shall 86 pushed to the top of theshaft tube 87 at tube's 87 end. -
FIG. 52 shows a see-through side view of an underwaterconnectable charging plug 38 both disconnected A and connected B wherein there is a male side and a female side that is filled with di-electric grease. -
FIG. 52 A shows a see-through side view of an underwater charging plug 38 revealing positive 82 and negative 83 wires entering acomposite plug housing 96 that is the back of the male side of the Exalta plug system. -
FIG. 52B shows an outside side view of the male top half of the Exaltawaterproof plug 38 and a see-through side view of the female bottom half ofplug 38 as seen inserted. -
FIG. 1 shows a down turned wave foil 1 (minus a surfboard and rider) diving into the heavy water stream moving up a large ocean swell face. -
FIG. 2 shows thesame wave foil 1 as shown inFIG. 1 but with asurfboard 3 and rider attached, its front foil hovered over a small wave's energy pulse. -
FIG. 3 shows a side view of an Fast Coast up-turned tail wave foil attached to a 5′6″ long surfboard wherein a wave foil comprises amast 4, a fuselage 6, a large delta shapedfront foil 5 find an upturned tail stabilizer 7. -
FIG. 4 shows a smaller scale bottom view of the same surfboard and wave foil as inFIG. 3 . -
FIG. 5 shows a frontal underside view of the wave foil revealing a continuous downturned curve shape to the front foil that is attached to the underside of the fuselage that tapers towards the upturned stabilizer. The mast and mast head are seen along with the twin screw attachment to the fuselage. -
FIG. 6 shows a close side view of a four part upturnedtail wave foil 2, with the mast cutaway. -
FIG. 7 shows an angled overhead view of a complete three piece downturned tailHawaiian wave foil 1. -
FIG. 8 shows how the front and tail foils can connect by a tapered male square shape entering a female square shape. -
FIG. 9 shows an angled bottom side view of a three piece downturnedtail wave foil 1 that comprises a one piece mast, mast head and fuselage 9 that connects to a downturnedfront foil 10 and adownturned tail stabilizer 11. -
FIG. 10 shows a masthead receiver box 12 that is installed into a surfboard's underside that should receive additional structural reinforcement in the surrounding area of the surfboard's bottom. -
FIG. 11 shows a frontal view of the three piece downturned tailHawaiian wave foil 1 revealing the front foil's extensivestrait section 10 with downturned ends wherein the foil line is visible as is the fuselage 9 tapering back to the down turnedtail stabilizer 11. A front view of the mast 9 andmast head 8 is seen crossing FIG.9. -
FIG. 12 shows an outside side view of the servo driven retractablemotorized foil 2 andsurfboard 3 in the up, or gliding position. -
FIG. 13 shows a see-through side view of the servo driven retractable motorized foil and surfboard as seen inFIG. 14 but in the down, or running position. -
FIG. 14 shows a see-through side view of the servo driven retractable motorized foil and surfboard in the up, or gliding position revealing aservo 18 inside the surfboard's body connected to aseparate propeller strut 13 that comprises anactuation arm 19, an axle-bolt connecting the mast to amast head housing 17 with stops for the up and down positions, the bottom of the mast is the torpedo shapedhousing 15 that holds the motor, shaft andgear box 42 connected to live prop andcort nozzle 16. -
FIG. 15 shows a see-through top view of the servo driven retractable motorized foil and surfboard revealing thecontrol box 21 andbattery banks 21 as well as theservo 18 and actuation arm in the down position. -
FIG. 16 shows a side view of one embodiment of a retractable motorized foil surfboard. A 5′6″surfboard 3 is shown attached to aHawaiian wave foil 1 that comprise a long mast 9 that is a molded part of a fuselage that is connected to afront foil wing 10 and a foiledaft tail wing 11 wherein the present invention's retractable motorized unit is shown in the up, or glide position. Wherein the waterproof motor andgearbox case 54 with subframe is seen hanging down at a 45 degree angle to themast 50 that contains ashaft 58 and bearings that is connected to a cort nozzle andpropeller 16. -
FIG. 17 shows the same embodiment as inFIG. 16 except the motorized unit'scase 54,strut 50 andpropeller 16 are in the down, or drive position. Wherein the shaftedmast 45 sits parallel to the foil mast 9 having the propeller mounted at a 90 degree angle to both masts producing strait forward thrust, neither climbing towards the surface nor dropping towards the bottom. -
FIG. 18 shows a top view of said 5′6″ surfboard revealing thefront foil 10,battery boxes 20 and atraction pad 46. -
FIG. 19 shows a see-through side view of a 5′6″surfboard 3 withbattery boxes 20,control box 21 and a wire take-up box 67. Ahigh torque servo 18 is seen near a mast with a shaft strut andbearings 50 which supports a propeller andcort nozzle 16 with alower gear box 47 wherein apivot hanger 48 and axle support all that plus awaterproof case 54 that contains a gear set 49 and abrushless motor 53. Also seen is the three partHawaiian wave foil 1 that includes a rigid mast and fuselage 9 that connects to afront foil 19 and adownturned tail foil 11. -
FIG. 19A shows a see through close-up view of the parts mentioned inFIG. 19 in the up, or glide position. -
FIG. 20 shows everything shown inFIG. 19 hut with themotor case 54 and thestrut 50 with prop andcort nozzle 16 in the down, or drive position. -
FIG. 20A is a see through close-up view of thepivot hanger 48 holding up thewaterproof case 54 that contains a gear set 49 and abrushless motor 53 which is connected to a shaft and bearings strut 50. -
FIG. 21 shows a see-through top view of the 5′6″surfboard 3 showing thefront foil 10 appealing out from under it. Wherein the fourbattery banks 20 air seen connected to a chargingoutlet 55, acontrol box 21 and to a motor wire take-up box 67 which in turn connects to the brush lessmotor 53 showing a top view of a bevel gear set 49 and ahigh torque servo 18 with arm. -
FIG. 22 shows a see-through angled view of thewaterproof case 54,strut 50 andpropeller 16 connected into one unit. A twin fan cooling jacket 68 is seen surrounding the brushless motor 5.3 inside thewaterproof case 54 showing the motor's aluminum cooling fins 69 and showing the cooling jacket's air exit vents 70. The gear set 49 is seen connected to a strut with a shaft withbearings 50 that connects to a lower gear box withbearings 47 that connects to said cort nozzle andpropeller 16. -
FIG. 23 shows a see-through side view of thesurfboard 3 and the three partHawaiian wave foil 1 with the present invention's retractable motor and prop surf foil showing three stages of movement. The up, or glide position shows theservo arm 19 swung all the way forward from theservo 18 pitching thecase 54 downward. The mid travel position shows thestrut 50 half way down and theservo arm 19 in it's middle position. The down or drive position shows thestrut 50 ail the way down and parallel to the foil mast 9 showing theservo arm 19 all the way aft. -
FIG. 24 shows a side view of thesurfboard 3 attached to the three partHawaiian wave foil 1 showing a second embodiment of the shaftedstrut 50 design with a split gear retractable motor and propeller unit enabling the motor to stay attached to the surfboard's body and not swing down and away like the unit outlined inFIGS. 16 through 23 wherein it also offers an angled motor mount moving the weight bias forward wherein the fall awaybevel gear 56 is seen held in place by the fall awaymast hanger 59 that doubles as amast stop 59. This view shows the split gear version in the up, or glide position. -
FIG. 25 shows a 5′6″surfboard 3 attached to the three partHawaiian wave foil 1 connected to the second embodiment of a retractable shaft drivenstrut 50 with motor andpropeller unit 16 that shows the split gear version in the down, or drive position wherein themast hanger 59 is seen stopping thestrut 50 parallel to the foil mast 9 setting the propeller andcort nozzle 16 at the correct driving angle when in the down, or drive position. -
FIG. 26 shows a top view of the batteryladen surfboard 3 with the front foil peering out from underneath it 10. Four battery box covers 20 are seen as well as thetraction pad 46. -
FIG. 27 shows a see-through side view of the split gear version of the retractable unit showing the separating gears having fallen away from each other and positioning thestrut 50 prop andnozzle 16 in the up, or glide position. -
FIG. 27A shows a close-up see through side view of themotor 53, gears 56 andservo 18 area as shown and described inFIG. 27 . -
FIG. 28 shows the same embodiment as seen in FIG.27 except thestrut 50 prop andcort nozzle 16 are in the down, or drive position . . . that sees thestrut 50 mounted parallel to the Hawaiian wave foil mast 9 but noticeable much closer than the embodiment shown inFIGS. 16 through 23 -
FIG. 28A shows a close-up see through side view of the split gear version of the retractable unit in the down, or drive position showing the bevel gear set 56 engaged and theservo arm 19 and theconnect arm 57 pushed downward. Themast hanger 59 is seen doubling as arigid strut 50 stop. -
FIG. 29 shows a se-through top view of thesurfboard 3 ladened withbattery 20 revealing the side mountedmotor 53 allowing themotor 53 and strut 50 weight to be moved forward without getting in the way of themast head 8. The four to one gear set 56 is seen near theservo 18. -
FIG. 30 shows a see- through side view of amast head 8 attached to asurfboard 3 employing a two degree spacer set 61 that changes the mast's 9 angle in relation to the surfboard's bottom surface, or angle of incidence for the entire three partHawaiian wave foil 1 lessening the tendency of the front foil to climb then breach the water surface resulting in a wipeout. The ovalhead machine screws 64 are seen seated in the cupped finish washers 63 attached at an angle because of thetop wedge spacer 61 and theangled spacers 61 creating a two degree change in the mast's 9 angle of incidence where the spacer keeps 62 are seen holding thespacers 61 in place embodying a bent shape. These spacer sets could be offered in 1, 2, 3 or 4 degree versions. Themast head box 12 is seen in a darker shade depicting it's carbon fiber construction. -
FIG. 31 shows the samemast head box 12mast head 8 and mast 9 as inFIG. 30 but with a two piece zero degree spacer kit 66 installed showing the ovalhead machine screws 64 in a straight up position and centered in the cupped finish washers 63 and rotating inserts 65 wherein the spacer keeps 62 are seen spanning strait across the bottom surface. -
FIG. 32 shows a side view of two Hawaiian wave foils 1 wherein one embodiment is held in place by the mast box with the three piece. 2 degree spacer set 61 installed. The other embodiment is held in place by the two piece, 0 degree spacer kit 65 demonstrating the difference in the attack angle of the front foil created by a 2 degree shift at the mast head. -
FIG. 33 shows the three piece, 2 degree spacer set unattached. -
FIG. 34 shows the two piece, 0 degree spacer set unattached. -
FIG. 35 shows an angled top view of themast box 12 wherein it embodies an inside shape that requires the mast head to be shaved at its ends to allow room for the spacer sets 61 and 66. -
FIG. 36 shows a see-through side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position wherein themotor 53 and prop 16 travel up and down themast 33 via cables pulling astainless steel plate 31 up and down that hasroller hearings 35 attached which travel along a channel inside the mast which also has a slice cut out of the trailing edge to accept the thin stainless plate and to help guide its vertical path. The mast also has other hollow areas (shown inFIG. 36A ) that allow space for twopulleys 29, thepulley cables 27 and apower cord 28. Shown inside the surfboard are the twomotorized torrents pulley wheels 29 that reside in the partially hollow mast head that help lift and drop theplate 31,motor 53,shaft gear box 42, prop andcort nozzle 16. A side view of thecontrol box 21 andbattery banks 20 is also visible in the surfboard's body. -
FIG. 36A shows a cross section top view of the pulley mast that shows two of the fourroller bearings 36 inside the square channel they travel in. Thestainless steel plate 31 edge can be seen in its slot that leads to the pulley cable and power cord cavities that are seen along with thepulldown cable hole 37. The torpedo shaped motor housing is seen with its frontal facade split around the mast's foil shaped surface. -
FIG. 37 shows an outside side view of the pulley driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 38 shows a see-through side view of the pulley driven mast traveler foil and surfboard as seen inFIG. 36 but in the up, or gliding position. -
FIG. 39 shows a see-through top view of the pulley driven mast traveler motorized foil and surfboard revealing thecontrol box 21 andbattery hanks 20, thepulley torrent 25, thepower cord torrent 26, thepulley cables 27, and the mast head opening and theDC wire 28. -
FIG. 40 shows a see-through aide view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position. This view shows a cort nozzle andpropeller 16, ashaft gear box 42 andmotor 53, aradio receiver 43, and a threemotor controller 44 revealing a side view of the mast crawling wheels with a mini motor andgearbox 39 and twin battery packs in between them.FIG. 40 also shows a chargingplug 38 attached to the underside of the surfboard's body as well as thebattery bank 20 andcontrol box 21. -
FIG. 41 shows an outside view of the independent wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 42 shows a see-through side view of the independent wheel driven mast traveler motorized foil and surfboard as seen inFIG. 40 but in the up, or gliding position. -
FIG. 43 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard, motor and prop setup with a cut away mast section showing thetravel wheels 40 withmini motors 39 tightened up against the mast's 9 edges. -
FIG. 44 shows a see-through top view of the independent wheel driven mast traveler motorized foil and surfboard showing thecontrol box 21 andbattery banks 20. -
FIG. 45 shows a larger see-through top view of an independent wheel driven mast traveler fuselage with the two parts separated at the forefront of the mast 9 revealing the long front end dampbolts 71 detached from the threaded inserts 75, also showing the frontend travel wheel 40 away from the edge of the mast 9. Reduction gears and themini motor 39 are seen connected to thetravel wheel 40. Awater proof wall 74 is seen bending around themini motor 39 wherein the mini motor's shaft is waterproofed by a grease tube and an O ring in some way as it passes between the wet portion of the independent motor in fuselage withgearbox 30 separating it from a dry portion of thefuselage 30 containing saidmini motor 39, a radio orBluetooth receiver 43, a mini charger and a threemotor controller 44, and a nosecone battery pack 45. The mast side battery packs 41 are seen in the aft half of thefuselage 30 placed on each side of the foil mast 9 and shapedcavity 72 that accommodates it. All threebattery packs mini motors 39 and themain propulsion motor 53 seen on the other side of the secondwaterproof wail 74 making a dry space for saidmotor 53 and areduction gearbox 42 wherein ashaft 76 is seen in a grease lube with agrease fitting 77 preventing water from entering the dry space through the thirdwaterproof wall 74 where theshaft 76 extends out to the propeller andcort nozzle 16. -
FIG. 46 shows a see-through side view of the independent wheel driven mast traveler as outlined inFIG. 45 showing a side view of nose cone wire terminal 60. -
FIG. 47 shows a see-through side view of a mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position revealing threebrushless motor wires 100 that are molded into the foil mast 9 that end at the ball bearing contact system 101 shown close up inFIG. 51 also showing thesame fuselage 30 as shown inFIG. 45 but without live nosecone battery pack 45. -
FIG. 48 shows an outside view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the down, or running position. -
FIG. 49 shows a see-through side view of the wheel driven mast traveler and side view of the mast plug-in wheel driven mast traveler motorized foil and surfboard in the up, or glide position, wherein it is charging the travelwheels battery pack 41 revealing in line ball connectors on lower mast 101. -
FIG. 50 shows a see-through top view of the mast plug-in wheel drivenmast traveler fuselage 22 wherein it shares all the same components and construction as inFIG. 45 except the nosecone battery pack 45 and the leftside battery pack 41 are missing, wherein thenose cone pack 45 isn't needed because the motor is connected to thelarge battery storage 20 incased inside the surfboard'sbody 3. The fuselage plugs in down low on the mast 9 by way of a rolling ball bearing connection system 101. A single mastside battery pack 41 remains to run thetravel wheels 40 wherein it van be charged when thefuselage 22 is in its glide mode by the charginginlet 14 being penetrated by the chargingplug 38 as seen inFIG. 47 . -
FIG. 51 shows three in-line ball bearingbrushless motor wire 100 connectors in different stages of movement. -
FIG. 51A shows a top connector with abearing cap 85 andshaft 86 that rides up and down through ashaft tube 87 and moved by a rubber coated spring 90 that sits in acircular housing 93 with theball bearing 24 fully extended resting on a flat surface wherein the bottom connector is seen sprung all the way out flush to its surrounding surface and in a disconnected position wherein a set of dielectric grease bladders 84 are not expanded. -
FIG. 51B is also seen with thetop connector ball 24 andcap 85 fully extended except this drawing shows the bottom connector pushed in to the point of making contact from thesteel ball 24 to the rubber sidedcopper plate 92 to the rubber coated copper pillar contact 91 to thebrushless motor wire 100. Note the rubber coated spring 90 is compressed and the two di-electric grease bladders 84 are expanded full of grease. -
FIG. 51C shows thetop connector housing 93 with theball bearing 24 andcap 85 pushed way up showing the rubber coated steel spring 90 fully compressed and thecap shaft 86 pushed to the top of theshaft tube 87 at tube's 87 end. Also note the twogrease bladders 84 are expanded. This demonstrates where theball 24 andcap 85 are positioned as theball 24 rolls up and down the mast 9 while un-connected to a battery source.FIG. 51C also shows the bottom connector demonstrating how far down the rubber facedcopper plate 92 sits to make contact with the copper pillar 91 and shows the copper plate's 92 center that is non-rubber covered and shaped to fit the ball's 24 shape to make positive electrical contact in a bath of di-electric grease contained by thecircular housing 93. Note the expanded grease bladders. -
FIG. 52 shows a see-through side view of an underwaterconnectable charging plug 38 both disconnected A and connected B wherein there is a male side and a female side that is filled with di-electric grease. -
FIG. 52A shows a see-through side view of an underwater charging plug 38 revealing positive 82 and negative 83 wires entering acomposite plug housing 96 that is the back of the male side of the Exalta plug system. The plug's penetration dowel comprises a composite band 99 next to a copper band 95 next to another composite band 99 wherein thenegative wire 83 is seen soldered to a copper tube contact 95 at the furthest end of theplug 38 is the positive malecopper needle contact 28 wherein the positive wire is seen soldered to the back of theneedle contact 28. The female side shows a flexible rubber membrane 9- atop the composite tube shapedhousing 96 that is filled with di-electric grease. Themembrane 94 has a penetration point that is able to seal back up after the male dowel 99 andneedle 28 withdraw keeping the water out and the di-electric grease in. The female copper contact 98 is seen amidst the di-electric grease wherein thewire 83 is seen connected to it whereas thepositive wire 82 is seen connected to thefemale copper contact 97 that is also surrounded by di-electric grease. Note the female plug is un-connected, un-penetrated therefore the twogrease bladders 84 are not expanded. -
FIG. 52B shows an outside side view of the nude top half of the Exaltawaterproof plug 38 and a see-through side view of the female bottom half ofplug 38 as seen inserted showing themale needle tip 28 contacting thefemale copper contact 97 completing the positive wire connection wherein the negative male copper contact tube 95 is tightly fit into the female copper contact tube 98 completing the negative connection. Note: the expanding grease bladders - Aguera's U.S. Pat No. 9,789,935 B1 outlines a three part apparatus that lifts a paddleboard and rider above the wave's surface as a rider maintains a slow speed in the water via paddeling. Furthermore, claims by Aguera concerning maximum thickness at first distance from the fore edge is the key to lifting a 250 lb man at slow paddling speeds on a heavy paddleboard whereas in 2018 the best surfers in Hawaii are catching waves by prone paddling small boards without a paddle, by standing up as the foil lifts and catches a wave. As difficult as this is to do many young surfers are agile enough to master this skill. Aguera's design appears to be most responsible for making foils that lift at slow speed and with a heavy rider which bodes well for beginners learning to foil.
- Derrah has developed a drive-n-glide wave foil that has the advantage of dual functionality. It can motor around on flat water offering smooth rides with long run times. It can effortlessly catch a wave or swell under power and with the push of a button convert to a free gliding wave foil that can ride a swell for miles without power. None of the motorized surfboards or wave foils on the market are capable of catching and riding waves without power whereas Derrah's drive-n-glide design can ride on a wave's power done, gliding quietly with little resistance and using zero battery power.
- Aguera's hydrofoil based apparatus revolutionizes wave riding but provides no way to add motorized propulsion to his watercraft whereas Derrah's add on invention does, making Derrah's six motorized versions of a drive-n-glide wave foil with surfboard different than Aguera's hydro foil based apparatus.
- Langelaan's US 2017/028315 A1 discloses a personal hydrofoil watercraft that has a mast 103, a front foil 102, and a fuselage 201 with motor 105 and propeller and cort nozzle 104 but with no tail stabilizer. He outlines a version with a jet tube 401 placed underneath a front foil 102 with no tail stabilizer then shows a way to disconnect said front foil 102 from the fuselage 201 to use alternate shape and size front foils 102 and with the option of attaching two different tail stabilizers 804, 805 wherein it is not clear how they attach with any of the three power means outlined.
- Langelaan's personal hydrofoil board reveals many design flaw's wherein the mast attached to the front wing or fuselage is very short and the absence of a tail stabilizer would make this apparatus very difficult to ride. This personal hydrofoil apparatus works only with the power on and the power means outlined would thwart any possibility of gliding and lifting without power wherein a fuselage, motor, propeller and cort nozzle cause water flow obstruction preventing the wave foil's ability to lift at slow speeds.
- Derrah's six different versions of a drive-n-glide wave foil offer the advantage of dual functionality wherein three versions of Derrah's present invention have a vertical strut that holds a propeller and cort nozzle that completely retracts up and out of the water and wherein three other versions have a fuselage that contains a motor, propeller and cort nozzle that travel up the foil mast to touch the surfboard bottom, up and out of the water. All versions retracting any obstructions to water flow enabling the foil to do its job without power.
- Langelaan's powered hydrofoil board provides no means to disengage the obstructions to water flow whereas Derrah's six versions of a drive-n*glide wave foil provide the means to retract all obstructions to water flow.
- Trewern's patent application WOZA19/104378 A1 discloses a hydro foil system comprising a fuselage 10 a motor 11 a propeller and a
cort nozzle 13 connected to afront wing 14 and having a tail wing and allowing for a mast that connects to a surfboard. This design is known worldwide as the Fliteboard. This is a sound design for a single use (flat water cruising) motorized foil board. However, it cannot ride a wave without the power on. With the power on it is restricted from full wave riding performance because the propeller, cort nozzle and fuselage all contribute to create drag and disturbance of water flow. - Trewern's powered hydrofoil system is a sound design hydrofoil for powered flat water cruising but provides no means to retract the extraneous obstructions to water flow ie. fuselage, motor, propeller and cort nozzle in order to lift and glide on a wave like Derrah's drive-n-glide motorized wave foil does. The fact that all six versions of Derrah's drive-n-glide wave foil incorporate a means to retract obstructions wherein their intent is to use any top quality wave foil currently manufactured such as GoFoil, Naish, ect. to perform the lifting, gliding and free surfing demonstrates the difference between Trewern's foil system and Derrah's dual functionality foil designs.
- 1. 3 piece down-turned tail Hawaiian wave foil
- 2. 4 piece up-turned tail East Coast wave foil
- 3. Surfboard
- 4. East Coast mast of 4 piece set
- 5. East Coast curved front foil
- 6. East Coast fuselage
- 7. East Coast up-turned tail foil
- 8. Tuttle mast head
- 9. Hawaiian mast and fuselage
- 10. Hawaiian down-turned front foil
- 11. Hawaiian down-turned tail foil
- 12. Mast box
- 13. Motor and prop strut
- 14. Exalta charging inlet
- 15. Motor in fuselage
- 16. Propeller and cort nozzle
- 17. Mast hanger
- 18. Hi torque servo
- 19. Servo arms
- 20. Lithium polymer battery banks
- 21. Control box
- 22. Plug in mast traveler fuselage
- 23. String hanger
- 24. Steel ball bearing
- 25. Travel plate rotor
- 26. DC wire rotor
- 27. Travel cable
- 28. + male needle contact
- 29.
Travel pulley 1 of 4 - 30. Independent wheel driven mast traveler
- 31. Travel plate
- 32. Axle bolt
- 33. Travel mast and fuselage
- 34. Mast travel channel
- 35. Roller bearings
- 36. DC wire travel hollow
- 37. Travel cable hollow
- 38. Exalta charging plug
- 39. Mini motors and gear box
- 40. Traveler wheels
- 41. Mast side battery- pack
- 42. Reduction gear box
- 43. Radio or Bluetooth receiver
- 44. 3 motor controller and mini charger
- 45. Nose cone battery pack
- 46. Fuselage disconnect junction
- 47. Lower gear box with bearings
- 48. Pivot hanger
- 49. 1 to 4 bevel gears
- 50. Shaft strut
- 51. Upper bearing
- 52. Mid bearing
- 53. Brush less motor
- 54. Motor room case
- 55. Charging station
- 56. Fall away bevel gears
- 57. Connect arm
- 58. Stationary motor case
- 59. Fall away mast hanger
- 60. Wire terminal
- 61. 2 degree spacer set
- 62. Spacer keep
- 63. Cupped finish washer
- 64. Oval head machine screw
- 65. Rotational threaded insert
- 66. 0 degree spacer set
- 67. Motor wire take up box
- 68. Twin fan+cooling fins
- 69. Aluminum cooling tins
- 70. Air vent exit
- 71. Long front end clamp bolt
- 72. Mast travel cavity
- 73. Exalta waterproof connection
- 74. Waterproof wall
- 75. Clamp bolt threaded insert
- 76. Shaft and grease tube
- 77. Grease fitting
- 78. Bearings
- 79. Rubber membrane
- 80. + connection
- 81. − connection
- 82. + wire
- 83. − wire
- 84. Grease bladder
- 85. BB cap
- 86. Cap shaft
- 87. Shaft tube
- 88. Rubber wire gasket
- 89. Cap-O-Ring
- 90. Rubber coated steel spring
- 91. + rubber coated copper pillar contact
- 92. − rubber sided copper plate contact
- 93. Ball bearing contact system composite housing
- 94. Flex rubber cap
- 95. − male copper contact tube
- 96. Composite plug housing
- 97. Female copper contact
- 98. − female copper contact tube
- 99. Rubber plug band
- 100. Brushless motor wire
- 101. Exalta brushless motor ball contact system
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US16/550,211 US20200079479A1 (en) | 2018-08-24 | 2019-08-24 | Retractable Power Drive Surfboard for Wave Foils |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862722499P | 2018-08-24 | 2018-08-24 | |
US16/550,211 US20200079479A1 (en) | 2018-08-24 | 2019-08-24 | Retractable Power Drive Surfboard for Wave Foils |
Publications (1)
Publication Number | Publication Date |
---|---|
US20200079479A1 true US20200079479A1 (en) | 2020-03-12 |
Family
ID=69720470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/550,211 Abandoned US20200079479A1 (en) | 2018-08-24 | 2019-08-24 | Retractable Power Drive Surfboard for Wave Foils |
Country Status (1)
Country | Link |
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US (1) | US20200079479A1 (en) |
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