US20160340009A1 - Propeller guarding assembly - Google Patents
Propeller guarding assembly Download PDFInfo
- Publication number
- US20160340009A1 US20160340009A1 US14/715,675 US201514715675A US2016340009A1 US 20160340009 A1 US20160340009 A1 US 20160340009A1 US 201514715675 A US201514715675 A US 201514715675A US 2016340009 A1 US2016340009 A1 US 2016340009A1
- Authority
- US
- United States
- Prior art keywords
- cage portion
- propeller
- guard assembly
- center
- circumferential bar
- Prior art date
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
- B63H5/165—Propeller guards, line cutters or other means for protecting propellers or rudders
Definitions
- This invention relates generally to marine propulsion components and, more particularly, to a propeller guarding assembly for use on an outboard watercraft propulsion apparatus.
- outboard propulsion devices such as a marine propellers
- a problem which still exists, however, is that when such propellers are used on smaller sized vessels, such as a conventional pleasure craft, particularly in smaller bodies of water (for example rivers, lakes, or canals), they often collide with aquatic animals, including manatees. Such collisions have commonly led to maiming, disfigurement, and even death of such animals.
- a propeller guard assembly which would prevent marine animals from purposely or inadvertently contacting propeller blades. It would be helpful if such a propeller guard assembly included a housing cage that restricted access to the propeller blades while freely allowing fluid to pass through the blades. It would be additionally desirable for such a propeller guard assembly to include a hinged attachment mechanism that allowed it to be snapped on to existing propeller assemblies.
- the Applicant's invention described herein provides for a propeller guard assembly adapted to enclose the blades of a marine propeller while not restricting their functionality.
- the primary components in Applicant's propeller guard assembly are a front cage portion, a back cage portion, and a fastening clip. When in operation, the propeller guard assembly prevents propeller blades from striking nearby animals in a body of water. As a result, many of the limitations imposed by prior art structures are removed.
- a propeller guard assembly for enclosing the propeller blades of a marine propeller to prevent them from striking marine animals.
- the propeller guard assembly comprises a front cage portion hingedly attached to a back cage portion.
- the front cage portion and back cage portion are each defined by a plurality of bars extending radially from a center area to a circumferential bar.
- the front cage portion and back cage portion are hingedly coupled by a hinge, thereby enabling them to swing between an open position and a closed position. When in the closed position, the front cage portion and back cage portion can be selectively fastened together by a fastening clip.
- FIG. 1 is a front elevational view of a propeller guard assembly built in accordance with the present invention.
- FIG. 2 is a back elevational view of a back cage portion of a propeller guard assembly built in accordance with the present invention.
- FIG. 3 is a side elevational view of a propeller guard assembly built in accordance with the present invention shown in an open position.
- FIG. 4 is a side elevational view of a propeller guard assembly built in accordance with the present invention shown in an closed position.
- a propeller guard assembly 10 having a front cage portion 11 coupled with a back cage portion 12 .
- the front cage portion 11 is defined by a plurality of radial bars 14 extending from a center point 15 to a circumferential bar 16 .
- the back cage portion 12 ′ is defined by a plurality of radial bars 14 ′.
- the radial bars 14 ′ extend from a center member 15 ′ to a circumferential bar 16 ′.
- the circumferential bar 16 ′ is not continuous as it includes an attachment space 12 that enables an connecting structure holding a propeller to be inserted into the propeller guard assembly 10 .
- the center member 15 ′ includes a spring loaded fastener 15 a that can be slid open to expose a corresponding center gap 12 ′ that enables it to receive and then secure such an connecting structure of a propeller.
- the radial bars 14 , 14 ′, center point 15 , center member 15 ′ and the circumferential bars 16 , 16 ′ are constructed of steel.
- the front cage portion 11 and back cage portion 12 are hingedly coupled by a hinge 17 , thereby enabling them to swing between an open position, as illustrated in FIG. 2 , and a closed position, as illustrated in FIGS. 1 and 3 .
- a fastening clip 18 When in the closed position, the front cage portion 11 and back cage portion 12 can be selectively fastened together by a fastening clip 18 .
- the fastening clip defines a latch fastener.
- propeller guard assembly 10 may be constructed in various sizes for attachment to various size propellers.
- radial bars as opposed to bars in an intersecting or other conventional cage pattern, maximally reduces the obstruction of fluid around the propeller blades 20 which would cause a reduction of efficiency on the propeller. Furthermore, the exclusive use of radial bars improves the ability of the propeller guard assembly 10 to be attached to the propellers on various motors by fitting around an connecting structure that connects the propeller to the motor or boat.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A propeller guard assembly for enclosing the propeller blades of a marine propeller to prevent them from striking marine animals. The propeller guard assembly comprises a front cage portion hingedly attached to a back cage portion. The front cage portion and back cage portion are each defined by a plurality of bars extending radially from a center area to a circumferential bar. The front cage portion and back cage portion are hingedly coupled by a hinge, thereby enabling them to swing between an open position and a closed position. When in the closed position, the front cage portion and back cage portion can be selectively fastened together by a fastening clip.
Description
- 1. Field of the Invention
- This invention relates generally to marine propulsion components and, more particularly, to a propeller guarding assembly for use on an outboard watercraft propulsion apparatus.
- 2. Description of the Prior Art
- The use of outboard propulsion devices, such as a marine propellers, to supply thrust to a watercraft is well known. A problem which still exists, however, is that when such propellers are used on smaller sized vessels, such as a conventional pleasure craft, particularly in smaller bodies of water (for example rivers, lakes, or canals), they often collide with aquatic animals, including manatees. Such collisions have commonly led to maiming, disfigurement, and even death of such animals. Thus, there remains a need for a propeller guard assembly which would prevent marine animals from purposely or inadvertently contacting propeller blades. It would be helpful if such a propeller guard assembly included a housing cage that restricted access to the propeller blades while freely allowing fluid to pass through the blades. It would be additionally desirable for such a propeller guard assembly to include a hinged attachment mechanism that allowed it to be snapped on to existing propeller assemblies.
- The Applicant's invention described herein provides for a propeller guard assembly adapted to enclose the blades of a marine propeller while not restricting their functionality. The primary components in Applicant's propeller guard assembly are a front cage portion, a back cage portion, and a fastening clip. When in operation, the propeller guard assembly prevents propeller blades from striking nearby animals in a body of water. As a result, many of the limitations imposed by prior art structures are removed.
- A propeller guard assembly for enclosing the propeller blades of a marine propeller to prevent them from striking marine animals. The propeller guard assembly comprises a front cage portion hingedly attached to a back cage portion. The front cage portion and back cage portion are each defined by a plurality of bars extending radially from a center area to a circumferential bar. The front cage portion and back cage portion are hingedly coupled by a hinge, thereby enabling them to swing between an open position and a closed position. When in the closed position, the front cage portion and back cage portion can be selectively fastened together by a fastening clip.
- It is an object of this invention to provide a propeller guard assembly which would prevent marine animals from purposely or inadvertently contacting propeller blades.
- It is another object of this invention to provide a propeller guard assembly that includes a housing cage that restricted access to the propeller blades while freely allowing fluid to pass through the blades.
- It is yet another object of this invention to provide a propeller guard assembly that includes a hinged attachment mechanism that allowed it to be snapped on to existing propeller assemblies.
- These and other objects will be apparent to one of skill in the art.
-
FIG. 1 is a front elevational view of a propeller guard assembly built in accordance with the present invention. -
FIG. 2 is a back elevational view of a back cage portion of a propeller guard assembly built in accordance with the present invention. -
FIG. 3 is a side elevational view of a propeller guard assembly built in accordance with the present invention shown in an open position. -
FIG. 4 is a side elevational view of a propeller guard assembly built in accordance with the present invention shown in an closed position. - Referring now to the drawings and in particular
FIGS. 1, 2, 3, and 4 , apropeller guard assembly 10 is shown having a front cage portion 11 coupled with aback cage portion 12. The front cage portion 11 is defined by a plurality ofradial bars 14 extending from acenter point 15 to acircumferential bar 16. Similarly, theback cage portion 12′ is defined by a plurality ofradial bars 14′. In the back cage portion 11′, theradial bars 14′ extend from acenter member 15′ to acircumferential bar 16′. Thecircumferential bar 16′, however, is not continuous as it includes anattachment space 12 that enables an connecting structure holding a propeller to be inserted into thepropeller guard assembly 10. Thecenter member 15′ includes a spring loadedfastener 15 a that can be slid open to expose acorresponding center gap 12′ that enables it to receive and then secure such an connecting structure of a propeller. In the preferred embodiment, theradial bars center point 15,center member 15′ and thecircumferential bars - The front cage portion 11 and
back cage portion 12 are hingedly coupled by ahinge 17, thereby enabling them to swing between an open position, as illustrated inFIG. 2 , and a closed position, as illustrated inFIGS. 1 and 3 . When in the closed position, the front cage portion 11 andback cage portion 12 can be selectively fastened together by a fasteningclip 18. In the preferred embodiment, the fastening clip defines a latch fastener. - It is appreciated that the
propeller guard assembly 10 may be constructed in various sizes for attachment to various size propellers. - It is contemplated that the exclusive use of radial bars, as opposed to bars in an intersecting or other conventional cage pattern, maximally reduces the obstruction of fluid around the
propeller blades 20 which would cause a reduction of efficiency on the propeller. Furthermore, the exclusive use of radial bars improves the ability of thepropeller guard assembly 10 to be attached to the propellers on various motors by fitting around an connecting structure that connects the propeller to the motor or boat. - The instant invention has been shown and described herein in what is considered to be the most practical and preferred embodiment. It is recognized, however, that departures may be made therefrom within the scope of the invention and that obvious modifications will occur to a person skilled in the art.
Claims (7)
1. A propeller guard assembly, comprising:
a front cage portion defined by a plurality of front radial bars extending from a center member to a front circumferential bar;
a back cage portion defined by a plurality of back radial bars extending from a center element to a back circumferential bar, wherein said back cage portion and front cage portion are hingedly attached so as to enable them to swing between an open position and a closed position; and
a fastening clip integral with at least one of the front circumferential bar and the back circumferential bar, wherein the fastening clip is configured to selectively fasten said front circumferential bar and back circumferential bar together when the front cage portion and back cage portion are in the closed position.
2. The propeller guard assembly of claim 1 , wherein each of said front radial bars extend from the center member to the front circumferential bar without intersecting any other structures.
3. The propeller guard assembly of claim 1 , wherein each of said back radial bars extend from the center element to the back circumferential bar without intersecting any other structures.
4. The propeller guard assembly of claim 1 , wherein said center element includes a hollow center configured to receive and hold an connecting structure from which a marine propeller extends.
5. The propeller guard assembly of claim 4 , wherein said center element includes a center gap configured to enable an connecting structure from which a marine propeller extends to pass into the hollow center.
6. The propeller guard assembly of claim 5 , wherein said center gap is selectably closeable by operation of a spring loaded fastener disposed on said center element.
7. The propeller guard assembly of claim 1 , wherein the back circumferential bar includes an attachment space configured to enable an connecting structure from which a marine propeller extends to pass into the back cage portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/715,675 US20160340009A1 (en) | 2015-05-19 | 2015-05-19 | Propeller guarding assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/715,675 US20160340009A1 (en) | 2015-05-19 | 2015-05-19 | Propeller guarding assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US20160340009A1 true US20160340009A1 (en) | 2016-11-24 |
Family
ID=57324164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/715,675 Abandoned US20160340009A1 (en) | 2015-05-19 | 2015-05-19 | Propeller guarding assembly |
Country Status (1)
Country | Link |
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US (1) | US20160340009A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2746230C1 (en) * | 2020-06-08 | 2021-04-09 | Алексей Александрович Панов | Floating vehicle with a screw propeller containing a protective device |
US20220063784A1 (en) * | 2018-12-17 | 2022-03-03 | Elomatic Oy | Grid for a tunnel thruster |
Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1793814A (en) * | 1928-08-17 | 1931-02-24 | Republic Metalware Company | Ventilating fan |
US1809583A (en) * | 1930-05-26 | 1931-06-09 | Emma K Cook | Fan protector |
US3963382A (en) * | 1975-01-31 | 1976-06-15 | Noel Thomas Patton | Portable air circulating fan |
US4070984A (en) * | 1977-07-25 | 1978-01-31 | Kappas Chris S | Outboard motor and weed guard therefor |
US4637801A (en) * | 1984-07-12 | 1987-01-20 | William H. Flood | Thrust enhancing propeller duct assembly for water craft |
USD309182S (en) * | 1988-06-24 | 1990-07-10 | Chin-Tien Hsu | Pocket fan or similar article |
US5073088A (en) * | 1991-01-25 | 1991-12-17 | Duracraft Corporation | Grill assembly for portable fan |
US5193984A (en) * | 1991-10-10 | 1993-03-16 | Deng-Huei Huang | Fan assembly |
US5352094A (en) * | 1992-01-16 | 1994-10-04 | Duracraft Corporation | Grill assembly for portable fan |
US5928042A (en) * | 1998-03-26 | 1999-07-27 | Glenn F. Mattina | Propeller guard |
US7140931B2 (en) * | 2004-07-22 | 2006-11-28 | Norman George I | System and apparatus for improving safety and thrust from a hydro-drive device |
-
2015
- 2015-05-19 US US14/715,675 patent/US20160340009A1/en not_active Abandoned
Patent Citations (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1793814A (en) * | 1928-08-17 | 1931-02-24 | Republic Metalware Company | Ventilating fan |
US1809583A (en) * | 1930-05-26 | 1931-06-09 | Emma K Cook | Fan protector |
US3963382A (en) * | 1975-01-31 | 1976-06-15 | Noel Thomas Patton | Portable air circulating fan |
US4070984A (en) * | 1977-07-25 | 1978-01-31 | Kappas Chris S | Outboard motor and weed guard therefor |
US4637801A (en) * | 1984-07-12 | 1987-01-20 | William H. Flood | Thrust enhancing propeller duct assembly for water craft |
USD309182S (en) * | 1988-06-24 | 1990-07-10 | Chin-Tien Hsu | Pocket fan or similar article |
US5073088A (en) * | 1991-01-25 | 1991-12-17 | Duracraft Corporation | Grill assembly for portable fan |
US5193984A (en) * | 1991-10-10 | 1993-03-16 | Deng-Huei Huang | Fan assembly |
US5352094A (en) * | 1992-01-16 | 1994-10-04 | Duracraft Corporation | Grill assembly for portable fan |
US5928042A (en) * | 1998-03-26 | 1999-07-27 | Glenn F. Mattina | Propeller guard |
US7140931B2 (en) * | 2004-07-22 | 2006-11-28 | Norman George I | System and apparatus for improving safety and thrust from a hydro-drive device |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20220063784A1 (en) * | 2018-12-17 | 2022-03-03 | Elomatic Oy | Grid for a tunnel thruster |
RU2746230C1 (en) * | 2020-06-08 | 2021-04-09 | Алексей Александрович Панов | Floating vehicle with a screw propeller containing a protective device |
WO2021251846A1 (en) * | 2020-06-08 | 2021-12-16 | Алексей Александрович ПАНОВ | Waterborne vessel with a propeller comprising a safety means |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |