US2905464A - Ventilator operating mechanism for awning type windows - Google Patents
Ventilator operating mechanism for awning type windows Download PDFInfo
- Publication number
- US2905464A US2905464A US559066A US55906656A US2905464A US 2905464 A US2905464 A US 2905464A US 559066 A US559066 A US 559066A US 55906656 A US55906656 A US 55906656A US 2905464 A US2905464 A US 2905464A
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- United States
- Prior art keywords
- ventilator
- frame
- operating mechanism
- window
- awning type
- Prior art date
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- Expired - Lifetime
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
- E06B3/5009—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement where the sliding and rotating movements are necessarily performed simultaneously
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/50—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with more than one kind of movement
Definitions
- the present invention is a ventilator for an awning type window, which ventilator is mounted to swing outwardly from and inwardly toward the frame of the window between open and closed positions respectively.
- the device includes a vertically movable connecting bar mounted in each side of the frame and held in place v by a shield adapted to afford protection against the elements in the open position of the ventilator, and further adapted to hold the connecting bar in place and permit the use of headless pivot pins.
- Pivotally connected to the upper end of the connecting bar is an extension plate connected to the adjacent side of the ventilator, and constituting lever means for imparting a force to the ventilator tending to swing the same outwardly or inwardly, depending upon the direction of movement of the connecting bar, with the swinging movement being controlled by the link pivotally connected between the frame and ventilator.
- a cable is connected at its opposite ends to the upper and lower end portions of the connecting bar, through the medium of a suitable tensionadjusting bracket, and said cable is trained over sheaves within the frame, with the cables at both sides of the frame being controlled by gear means conjointly rotatable by a user.
- gear means Associated with the gear means is a construction which will permit slippage of the gear means when the ventilator has reached the extreme limits of its travel, to prevent damage to the device.
- a ventilator of a window of this type includes a cross shaft, together with arms, links, bearings, shims, shoulder screws, etc.
- Such a construction is relatively complex and is expensive not only to manufacture but also to install.
- operational deficiencies have become apparent. A twisting action is imparted to the ventilators, and this occasionally causes the glass to crack.
- the conventional construction makes imperative an adjustment of the links, accomplished through an adjustable link anchor which in turn requires elongated slots in the frame.
- Still further, in all mechanisms employing a cross shaft there is outward thrust of the connecting bar against the lower guide, tending to produce excessive friction, which friction is increased in proportion to the extent to which the ventilator is opened. Then again, in conventional construction, there is provided a bulky mechanism, exposed to view.
- the main object of the present invention is to provide a generally improved ventilator operating device, having none of the deficiencies described above.
- Figure l is a View of an awning type window equipped with a ventilator and ventilator-operating mechanism formed in accordance with the present invention, porn 2,905,464 Patented Sept. 22, 1959.
- Figure 2 is a transverse sectional View on line 2 2 of Figure 1;
- Figure '3 is a vertical sectional view substantially 011 line 3 3 of Figure 1.
- the reference numeral 10 generally designates the frame of an awning type window.
- the frame 10 is of generally channel shaped cross section including ( Figure 2) outer and inner side walls 12, 14 connected by a web 16.
- An outwardly directed flange 18 formed on outer side wall 12 is engaged by the outer edge of the ventilator sash 20, the frame of the ventilator having an inwardly directed flange '22 bearing against an inner ange 23 formed on side wall 14 of the window frame.
- the ventilator frame ncludes side portions 24, on the opposite edges of which the flanges 20, 22 formed, with said ilanges 20, 22 extending in opposite directions from the portion 24.
- this provide a rectangular housing dened by the stationary window frame 10 and the vent frame 20, 22, 24. Said housing is closed when the ventilator is in closed position, and to prevent exposure of the ventilator operating mechanism to the elements when the ventilator is open there is tixedly mounted in the frame a flanged shielding plate 26 secured by fastening elements 28 to outer side wall 12.
- the swinging vmovement of the ventilator frame between open and closed positions is effected through the medium of an elongated, straight link 30 ( Figure 3) pivotally connected at its opposite ends by headless pivot pins 32 to the ventilator frame and window frame respectively.
- a lever plate or pad 34 is lixedly secured at its lower end at 35 to the upper portion of the ventilator frame, and is connected at its upper end to the upper end of a vertically slidably actuating bar 36, through the medium of a headless pivot pin 38.
- an angle bracket 40 having a rotatable element 42 capable of being secured by a lock screw in selected positions of rotatable adjustment.
- One end 44 of an operating cable is coiled about the element 42, and extends downwardly from bracket 40 about an idler sheave 46.
- the cable is trained about a drumy 43 having closely spaced peripheral grooves 50, 52 each of which lis the width of the operating cable so that the cable will be wound upon the drum in a plurality of convolutions disposed one upon another in a common plane.
- Cable ⁇ 44 is wound within groove 50, and similarly coiled in groove 52 is an actuating bar liftingfcable 54 trained at the lower corner of the window frame about an idler sheave ⁇ 56.
- actuating bar liftingfcable 54 trained at the lower corner of the window frame about an idler sheave ⁇ 56.
- cable 54 is trained about an upper idler sheave 58, and is then connected to a cable tensioning bracket 60 secured to the upper portion of actuating bar 36, bracket 60 having a rotatably adjustable element 62 similar to the element 42.
- a shaft ⁇ 64 journalled in the lower portion of the window frame medially between the sides of the trarne. Crank means, not shown, would be attached to the right hand end of the shaft viewing the same as in Figure 3.
- a pinion 66 Secured to the shaft 64 for rotation therewith is a pinion 66 in mesh with gears 68, 70 disposed at opposite sides of the pinion and secured to stub shafts journalled in the window frame, for rotation with said stub shafts, which have been designated at 71, 73 respectively.
- a lock roller housing 74 secured to the window frame interiorly of the building structure.
- Shaft 64 extends through housing 74, 'and secured t shaft 64 for rotation therewith w'fhi th h's is pphll ithd 166K ll' 76 against which bears an axially shiftable detent 78 biased toward the roller by means of a spring 80 held under Cefnpressren in 'spnng retainer 'enpsz threadedin housing 7 4.
- Shims 83 may vbe inserted in the ip for increasing 'the t'iisiii 'spring S0 to a sletdxtent.
- I'h'e' ⁇ druln 48 assdciated with each gear is freely r'- fatable nnen the straft 7'1 er 73, as the ease may be, and is' biased inte' fnetinal engagement with die asseciated gearb'y ⁇ a ctl'l'npression coiled spring 8 6 the'tens'ion f which may he' 'regulated by a C'Ollr 88 bf'aii'ng' against the sp'rnrg and formed Ynpc-n an adjusting sleeve rnounted in a bearing bracket 96 stationarily mounted in the lower' portion df tue Window frame.
- the sleves'-92 are threaded, for the purpose f adjnsting said' sleeves in an axial direction, td the compression ofthe spring 86', and in turn a'dj's'ts the force with which Ith'e spring b'ear's against a p'r'e's'snre' plate forcing pressure pitite' against the' dr'ui'n 48.
- the shield has the elct 'of facilitating install-ation of the assembly, since it serves' s a retainer for the actuating bar 36 and for .the link l:Mt er each side of the window. This enables' the' use of headless ⁇ 4 pivot pins, and consequently, by removing a section of the 'shield adjacent any particular ventilator, the ventilator may be readily removed.
- an open front window frame formed to a channel shaped cross section including outer and -inner side walls and a web ccnnecting the side walls; a sash inc ludingan inwardly directed flange, the inner side wall f the window frame including a ange against which the flange of the sash bears in the closed position of the sash, said sash further including an outwardly directed liange closing the open front of thewindow frame in the closed position of the sas-h; a Shielding plateextending transversely within the windw frame to prevent exposure of the interior ofthe window frame in theopen position of the sash; a link connectable pivotally betweensaid frame and sash and arranged for swinging the sash outwardly and inwardly responsive to downward and upward pressures, respectively, exerted on the sash; an actuating bar adapted for vertically slidable movement in oppsite directions within said frame and hving a
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Awnings And Sunshades (AREA)
Description
2 Sheets-Sheet 1 R. D. SHAW, SR
Sept.t 22, 1959 VENTILATOR 'OPERATING MECHANISM FOR AwNING TYPE WINDOWS Filed Jan. 13, 1956 Sept. 22, 1959 R. D. sHAw, SR
VENTILATOR OPERATING MECHANISM FOR AWNING TYPE WINDOWS Filed Jan. 13. 1956 2 Sheets-Sheet 2 INVENToR. /Q/M SHAW, Se.
BY v
m@ )mm IIIIIIIIIIIIIIIII 1 Muna!" United States Patent O VENTILATOR OPERATING MECHANISM FOR AWNING TYPE WINDOWS Ralph D. Shaw, Sr., Miami, Fla.
Application January 13, 1956, Serial No. 559,066
l1 Claim. (Cl. 268-110) Summarized briey, the present invention is a ventilator for an awning type window, which ventilator is mounted to swing outwardly from and inwardly toward the frame of the window between open and closed positions respectively.
The device includes a vertically movable connecting bar mounted in each side of the frame and held in place v by a shield adapted to afford protection against the elements in the open position of the ventilator, and further adapted to hold the connecting bar in place and permit the use of headless pivot pins. Pivotally connected to the upper end of the connecting bar is an extension plate connected to the adjacent side of the ventilator, and constituting lever means for imparting a force to the ventilator tending to swing the same outwardly or inwardly, depending upon the direction of movement of the connecting bar, with the swinging movement being controlled by the link pivotally connected between the frame and ventilator.
At each side of the window, a cable is connected at its opposite ends to the upper and lower end portions of the connecting bar, through the medium of a suitable tensionadjusting bracket, and said cable is trained over sheaves within the frame, with the cables at both sides of the frame being controlled by gear means conjointly rotatable by a user. Associated with the gear means is a construction which will permit slippage of the gear means when the ventilator has reached the extreme limits of its travel, to prevent damage to the device.
Ordinarily, a ventilator of a window of this type includes a cross shaft, together with arms, links, bearings, shims, shoulder screws, etc. Such a construction is relatively complex and is expensive not only to manufacture but also to install. Still further, in conventional mechanisrns of this type, operational deficiencies have become apparent. A twisting action is imparted to the ventilators, and this occasionally causes the glass to crack. Further, the conventional construction makes imperative an adjustment of the links, accomplished through an adjustable link anchor which in turn requires elongated slots in the frame. Still further, in all mechanisms employing a cross shaft there is outward thrust of the connecting bar against the lower guide, tending to produce excessive friction, which friction is increased in proportion to the extent to which the ventilator is opened. Then again, in conventional construction, there is provided a bulky mechanism, exposed to view.
The main object of the present invention is to provide a generally improved ventilator operating device, having none of the deficiencies described above.
Other objects will appear from the following description, the claims appended thereto, and from the annexed drawing, in which like reference characters designate like parts throughout the several views, and wherein:
Figure l is a View of an awning type window equipped with a ventilator and ventilator-operating mechanism formed in accordance with the present invention, porn 2,905,464 Patented Sept. 22, 1959.
ice
tions being broken away and other portions being shown in section;
Figure 2 is a transverse sectional View on line 2 2 of Figure 1; and
Figure '3 is a vertical sectional view substantially 011 line 3 3 of Figure 1.
Referring to the drawings in detail, the reference numeral 10 generally designates the frame of an awning type window. The frame 10 is of generally channel shaped cross section including (Figure 2) outer and inner side walls 12, 14 connected by a web 16. An outwardly directed flange 18 formed on outer side wall 12 is engaged by the outer edge of the ventilator sash 20, the frame of the ventilator having an inwardly directed flange '22 bearing against an inner ange 23 formed on side wall 14 of the window frame. The ventilator frame ncludes side portions 24, on the opposite edges of which the flanges 20, 22 formed, with said ilanges 20, 22 extending in opposite directions from the portion 24.
As will be noted from Figure 2, this provide a rectangular housing dened by the stationary window frame 10 and the vent frame 20, 22, 24. Said housing is closed when the ventilator is in closed position, and to prevent exposure of the ventilator operating mechanism to the elements when the ventilator is open there is tixedly mounted in the frame a flanged shielding plate 26 secured by fastening elements 28 to outer side wall 12.
The swinging vmovement of the ventilator frame between open and closed positions is effected through the medium of an elongated, straight link 30 (Figure 3) pivotally connected at its opposite ends by headless pivot pins 32 to the ventilator frame and window frame respectively. A lever plate or pad 34 is lixedly secured at its lower end at 35 to the upper portion of the ventilator frame, and is connected at its upper end to the upper end of a vertically slidably actuating bar 36, through the medium of a headless pivot pin 38.
To the lower end of bar 36 is connected an angle bracket 40, having a rotatable element 42 capable of being secured by a lock screw in selected positions of rotatable adjustment. One end 44 of an operating cable is coiled about the element 42, and extends downwardly from bracket 40 about an idler sheave 46. In the lower portion of the window frame, the cable is trained about a drumy 43 having closely spaced peripheral grooves 50, 52 each of which lis the width of the operating cable so that the cable will be wound upon the drum in a plurality of convolutions disposed one upon another in a common plane. Cable `44 is wound within groove 50, and similarly coiled in groove 52 is an actuating bar liftingfcable 54 trained at the lower corner of the window frame about an idler sheave `56. At the upper end of the window frame cable 54 is trained about an upper idler sheave 58, and is then connected to a cable tensioning bracket 60 secured to the upper portion of actuating bar 36, bracket 60 having a rotatably adjustable element 62 similar to the element 42. To effect rotation of drum 48, there is provided a shaft `64. journalled in the lower portion of the window frame medially between the sides of the trarne. Crank means, not shown, would be attached to the right hand end of the shaft viewing the same as in Figure 3.
Secured to the shaft 64 for rotation therewith is a pinion 66 in mesh with gears 68, 70 disposed at opposite sides of the pinion and secured to stub shafts journalled in the window frame, for rotation with said stub shafts, which have been designated at 71, 73 respectively.
To lock the gears and pinion in selected positions to which they are rotated, there is provided a lock roller housing 74, secured to the window frame interiorly of the building structure. Shaft 64 extends through housing 74, 'and secured t shaft 64 for rotation therewith w'fhi th h's is pphll ithd 166K ll' 76 against which bears an axially shiftable detent 78 biased toward the roller by means of a spring 80 held under Cefnpressren in 'spnng retainer 'enpsz threadedin housing 7 4. Shims 83 may vbe inserted in the ip for increasing 'the t'iisiii 'spring S0 to a sletdxtent.
ordinarily, en rennen 'f enen s4, det-ent .isn/n1 not hold lock roller 76 against rotation, sifie the innef'r or' rller'f'eirg'aging' end f d't'nt is cntiudusly biased einer the noten-es er the fuller anfing rotation, es lnng @s this defeat is free to 'shift axially in uiteen-en away freni lack relier'. Hen/ever, when the ventilator has B'er! opened 6r 'cl'sed t 'a selected extent, 'one' ry thread inte engagement with the plunger 'er' detfent "a' leeking' screw s4. This will held the plunger against `nieverrrt Ot 'f ggend't with an associated notch, thereby preventing rotation of pinion sh'a'ft '64.
I'h'e' `druln 48 assdciated with each gear is freely r'- fatable nnen the straft 7'1 er 73, as the ease may be, and is' biased inte' fnetinal engagement with die asseciated gearb'y `a ctl'l'npression coiled spring 8 6 the'tens'ion f which may he' 'regulated by a C'Ollr 88 bf'aii'ng' against the sp'rnrg and formed Ynpc-n an adjusting sleeve rnounted in a bearing bracket 96 stationarily mounted in the lower' portion df tue Window frame.
The sleves'-92 are threaded, for the purpose f adjnsting said' sleeves in an axial direction, td the compression ofthe spring 86', and in turn a'dj's'ts the force with which Ith'e spring b'ear's against a p'r'e's'snre' plate forcing pressure pitite' against the' dr'ui'n 48.
in this nfanner, the is rotatable with its esseciated s'haft', res`ponsive to rotation o'f the ineshin'g' ge'a'rs 66', 68, '70, but should excessive resi-'stance to referan de veinp, as fnrexample when the' ventilator has reached ile or the dther of the extreme' 4lifnit's of its travel, the' drurr will slip 'relative to' the shaft, so that continued rtation of the shaft will not freS'Ult in r'tatn of either' drum.
It will be seen that with a irl'cihanis'n'i such as' has heen illustrated and described he'r'e'in, munted 'a't opposite sides' of the windpfw frame, rotation er the single `shaft 6.4 will adiu'st the bars 36' at dpposit'e si'de's" of th'e frame upwardly or' downwardly, es .the 'ease' may be, for the purpose ef opening er closing the win-dow.
When the bars 36 are" shifted downwardly, downward pressure will -be exerted upon the ventilatorv frame' through the n'd-ed'nnn er' the eqnneetiqn of the leverplate 34 to said ventilator frame. This' will b e translated into outward swinging movement of the ventilator fra'r're, due' td the fact that dc'lw'r'rv't'farc1` pressure exerted thereon tends to* swing' the links outwardly at their upper ends.
It is important to nete that when the ventilator frame is' dpen, the' operating mechanism is still concealed, due' t' the prvision of the shield or partition 2 6.
Further, the shield has the elct 'of facilitating install-ation of the assembly, since it serves' s a retainer for the actuating bar 36 and for .the link l:Mt er each side of the window. This enables' the' use of headless `4 pivot pins, and consequently, by removing a section of the 'shield adjacent any particular ventilator, the ventilator may be readily removed.
It is believed apparent that the invention is not necessarily confined to the specific use or uses thereof described above, since it may be utilized for any purpose to which it may be suited: Nor is the invention to be necessarilv limited to the specific construction illustrated and dsb'dysieel such 'eensti'htieil is '"eilly intended to be illustrative bf the p'hip'ls, it 'beirlg considered that the invention cqnrprehends any minor change in construction that may be permitted within the scope of the appendd 'lairrh Y What is claimed is.:
In an awning type window construction, an open front window frame formed to a channel shaped cross section including outer and -inner side walls and a web ccnnecting the side walls; a sash inc ludingan inwardly directed flange, the inner side wall f the window frame including a ange against which the flange of the sash bears in the closed position of the sash, said sash further including an outwardly directed liange closing the open front of thewindow frame in the closed position of the sas-h; a Shielding plateextending transversely within the windw frame to prevent exposure of the interior ofthe window frame in theopen position of the sash; a link connectable pivotally betweensaid frame and sash and arranged for swinging the sash outwardly and inwardly responsive to downward and upward pressures, respectively, exerted on the sash; an actuating bar adapted for vertically slidable movement in oppsite directions within said frame and hving a connection to the sash adapted for transmitting said downward and upward pressures to theA sash responsive to vertical movenert of the actuating Ear in opposite directions; and remote control means adapted for operation by the user for effecting said vertical movement of the actuating bar, said shielding plate having a fixed connection along one side thereof to the outer side wall of the window frame, the shielding plate along Athe other edge thereof having a longitudinally extending ange setl inwardly from the adjacent longitudinal edge of the shielding plate whereby to define a longitudinal recess of right-angular cross setion along said adjacent longitudinal edge of the shielding plate, said recess of the shielding' plate sli-dably receiving one longitudinal edge of the actuating bar to guide the actuating bar in its vertical' sliding movement;
leferences Cited in the tile of this patent UNITED STATES PATENTS
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US559066A US2905464A (en) | 1956-01-13 | 1956-01-13 | Ventilator operating mechanism for awning type windows |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US559066A US2905464A (en) | 1956-01-13 | 1956-01-13 | Ventilator operating mechanism for awning type windows |
Publications (1)
Publication Number | Publication Date |
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US2905464A true US2905464A (en) | 1959-09-22 |
Family
ID=24232156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US559066A Expired - Lifetime US2905464A (en) | 1956-01-13 | 1956-01-13 | Ventilator operating mechanism for awning type windows |
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Country | Link |
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US (1) | US2905464A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237655A (en) * | 1978-02-20 | 1980-12-09 | Chishiro Yamao | Sliding door |
US4937976A (en) * | 1989-09-22 | 1990-07-03 | Truth Incorporated | Window operator and hinge structure |
US4945678A (en) * | 1988-12-05 | 1990-08-07 | Truth Incorporated | Window operator |
US5152103A (en) * | 1990-04-04 | 1992-10-06 | Truth Division Of Spx Corporation | Automatic window sash and lock operator |
USRE34230E (en) * | 1990-04-04 | 1993-04-27 | Truth Division Of Spx Corporation | Unified casement operator |
USRE34287E (en) * | 1988-12-05 | 1993-06-22 | Truth Division Of Spx Corporation | Window operator |
US5440837A (en) * | 1994-03-17 | 1995-08-15 | Truth Hardware Corporation | Manually operable sash lift for motorized double hung window |
US6186306B1 (en) * | 1995-10-27 | 2001-02-13 | Wilkinson Company, Inc. | Automatic bottom-hinged intake door |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB507352A (en) * | 1938-02-10 | 1939-06-14 | Wilmot Breeden Ltd | Improvements relating to window operating mechanism |
US2556695A (en) * | 1948-09-25 | 1951-06-12 | Nelson J Edge | Window operator |
US2709582A (en) * | 1954-01-14 | 1955-05-31 | Morgan Company | Window |
US2761674A (en) * | 1955-03-07 | 1956-09-04 | Nathan C Walberg | Gearless torque lock awning window |
US2772448A (en) * | 1953-12-31 | 1956-12-04 | Arthur J Cote | Window construction |
US2774590A (en) * | 1954-05-28 | 1956-12-18 | Stanley Building Specialties C | Mechanical operator for awning type windows |
-
1956
- 1956-01-13 US US559066A patent/US2905464A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB507352A (en) * | 1938-02-10 | 1939-06-14 | Wilmot Breeden Ltd | Improvements relating to window operating mechanism |
US2556695A (en) * | 1948-09-25 | 1951-06-12 | Nelson J Edge | Window operator |
US2772448A (en) * | 1953-12-31 | 1956-12-04 | Arthur J Cote | Window construction |
US2709582A (en) * | 1954-01-14 | 1955-05-31 | Morgan Company | Window |
US2774590A (en) * | 1954-05-28 | 1956-12-18 | Stanley Building Specialties C | Mechanical operator for awning type windows |
US2761674A (en) * | 1955-03-07 | 1956-09-04 | Nathan C Walberg | Gearless torque lock awning window |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4237655A (en) * | 1978-02-20 | 1980-12-09 | Chishiro Yamao | Sliding door |
US4945678A (en) * | 1988-12-05 | 1990-08-07 | Truth Incorporated | Window operator |
USRE34287E (en) * | 1988-12-05 | 1993-06-22 | Truth Division Of Spx Corporation | Window operator |
US4937976A (en) * | 1989-09-22 | 1990-07-03 | Truth Incorporated | Window operator and hinge structure |
US5152103A (en) * | 1990-04-04 | 1992-10-06 | Truth Division Of Spx Corporation | Automatic window sash and lock operator |
USRE34230E (en) * | 1990-04-04 | 1993-04-27 | Truth Division Of Spx Corporation | Unified casement operator |
US5440837A (en) * | 1994-03-17 | 1995-08-15 | Truth Hardware Corporation | Manually operable sash lift for motorized double hung window |
US6186306B1 (en) * | 1995-10-27 | 2001-02-13 | Wilkinson Company, Inc. | Automatic bottom-hinged intake door |
US6269928B1 (en) | 1995-10-27 | 2001-08-07 | Wilkinson Company, Inc. | Automatic bottom-hinged intake door |
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