Did You Know...
...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.
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| Number | Title | Issue Date |
| 7966770 | Rounded shoe and position brake assembly for the counterbalance system of a tilt-in window A counterbalance assembly for counterbalancing a tilt-in window sash within a guide track of a window frame. A brake shoe housing is provided having a face section and a rear section defined between a top edge, a bottom edge, and two side edges. At least one of the ... | 06/28/2011 |
| 7726073 | Sliding shoe for a window frame A sliding shoe for a sliding/pivoting window having a shoe body which is of two piece construction. A cam trapped between the two portions of the shoe has a cam-shaped body, which rotates in complementary cam-shaped openings through the shoe portions to expand the s... | 06/01/2010 |
| 7571568 | Sash windows A sash window includes a support device disposed on a lower end portion of each sash and including a pivot shaft for pivotally supporting the sash relative to a window frame, and a latch device disposed on an upper end portion of the sash for interlocking engagement... | 08/11/2009 |
| 7367162 | System for shoe latching in laterally removable sash A system for supporting a window sash that allows for the removal of the sash from between opposed window jambs. The system supports the window sash through counterbalance shoes supporting sash support arms pivotally attached to the sash. The shoes include hooks whi... | 05/06/2008 |
| 7353567 | Block and tackle window balance with bottom guide roller Disclosed are apparatus for a block and tackle window balance to be incorporated in single and double hung window assemblies. In one embodiment the block and tackle window balance includes a roller secured within a bottom guide to increase range of travel of a windo... | 04/08/2008 |
| 7350333 | Brake device for garage doors and the like A brake device (1) is for use with a cable-operated door (3), such as garage doors (3) and the like. The device (1) is intended to reduce the risk of the door (3) falling, or at the very least slow down its descent, in the event of... | 04/01/2008 |
| 7287799 | Tailgate lift assist dampening device A tailgate counterbalancing hinge assembly includes a linear torque rod, a first end assembly and a second end assembly secured to the torque rod. A first end assembly pivotally supports the tailgate while permitting a torque rod end to be rigidly coupled to the tai... | 10/30/2007 |
| 7261378 | Cam lock for vehicle seating A locking apparatus for a moveable component of an aircraft seat. The locking apparatus includes a housing for being slidably received in a track, a first pair of opposed cams pivotally mounted in the housing, and a release member. The cams are moved between a lock ... | 08/28/2007 |
| 7237811 | Casement window latch assembly A rack and pinion are mounted on a casement window frame to operate a vertically disposed polymeric latch keeper. The moveable rack includes a plurality of teeth which are engageable with latch keepers spaced therealong. The pivotable window section includes latches... | 07/03/2007 |
| 7228662 | Removable window insulator A removable window insulator preferably includes at least one pane, at least four frame members, at least four compressible seals and at least four draw members. At least one frame member is mitered on each one thereof. An edge seal strip is attached to an outer edg... | 06/12/2007 |
| 7222458 | Actuator for a tilt-latch for a sash window A tilt-latch (10) adapted for releasably securing a pivotable sash window (12) disposed within opposed guide rails (16) on a master frame (14) of a window sash assembly (11) is disclosed. The sash window (12) comprises a top... | 05/29/2007 |
| 7210267 | Non-takeout lock for a pivot pin of tilt-type windows A slide block for slideably and pivotally mounting a window sash to a side member of a window frame having a vertical window jamb channel. The slide block includes a body, the body defining a sash pivot-receiving aperture. A sash pivot retainer spring is integrally ... | 05/01/2007 |
| 7197849 | Balance shoe for tilt windows The present invention teaches an improved balance shoe. The improved balance shoe of the present invention comprises a balance shoe housing for retaining a sash in a channel of a window. The housing can have a base section and at least one side section. A pivot memb... | 04/03/2007 |
| 7194839 | Brake shoe for sash window or door assembly A brake assembly for locking a vertical or horizontal slidable sash window or door within a track of a frame is disclosed. The track has an elongated base and a pair of spaced apart, opposed sidewalls extending perpendicular from the base. Each sidewall has an inner... | 03/27/2007 |
| 7191562 | Locking balance shoe and system for a pivotable window Locking balance shoes and balance systems to be incorporated in pivotable double hung windows include, in one embodiment, a pair of retractable tabs that partially extend through openings within an inverted window balance. In one embodiment of the method of installi... | 03/20/2007 |
| 7171784 | Tilt-latch for a sash window A tilt-latch (10) for a sash window (12) disposed within opposed guide rails (16) on a master frame (14) is provided. The sash window (12) comprises a top rail (18), a base (22) and two stiles (24, 26) connecte... | 02/06/2007 |
| 7165359 | Balance shoe An improved balance shoe is described. There is a balance shoe housing, wherein there is a pivot member. The pivot member forces at least one side support member against the interior surfaces of a window jamb channel when said window is tilted. The pivot member comp... | 01/23/2007 |
| 7152371 | Swing flap for the entry and exit of small pets with last transit direction indicator A swing flap (10) for the entry and exit of small pets, which comprises a frame (812), which can be fixed to an opening (13) made in a door or a wall, equipped at the top with hinged means of constraint for a flap (22), and having a strip... | 12/26/2006 |
| 7147255 | Combination cam lock/tilt latch and latching block therefor with added security feature A latch reinforcing block for engagement with the nose portion of any tilt latch assembly and preferably with the above-mentioned camlock/tilt latch combination, the block comprising a top and bottom and having extending from proximate the top to proximate the botto... | 12/12/2006 |
| 7143475 | Block and tackle balance assembly with brake shoe A sash balance brake shoe assembly (2) is disclosed for counterbalancing a sash window (3) slidably supported within a master frame (5). The assembly generally includes a balance assembly preferably in the form of a block and tackle balance asse... | 12/05/2006 |
| 7117636 | Simultaneously operating self balanced hung window A hung window includes upper and lower sashes that may operate simultaneously. Two or more pulleys or rollers are mounted at each lateral side of the window frame. A cable interconnects each lateral side of the upper and lower sashes. The cables are routed over the ... | 10/10/2006 |
| 7096626 | Sash mounted housing with collapsible retainers A tilt latch and pivot housing which has a collapsible retainer on each of its side walls extending along a substantial portion of the length thereof and angularly outwardly from the side walls of the housing. The inner surface of each retainer is spaced from the su... | 08/29/2006 |
| 7093392 | Spring balance adjustment In sash windows where the sashes are supported on window units which run in channels in a window frame, and the window units are suspended from spring balances, the shoes have easily accessible mechanisms for adjusting the tension in the spring balances, without dem... | 08/22/2006 |
| 7076835 | Spring mounting for sash window tensioning arrangements A sash window counterbalance spring mounting arrangement for fitment into a channel section within a window jamb, includes coiled ribbon springs, a spring support mounting including a single integral component for locating and supporting the springs, a support for t... | 07/18/2006 |
| 7073292 | Window sash corner lock An improved window sash assembly which includes a sash held together by corner locks. The corner locks are all of similar construction, but may accommodate either tilt latch mechanisms or pivot terminal mechanisms. By utilizing a single corner bracket for both types... | 07/11/2006 |
| 7069621 | Block and tackle sash balance shoe A sash balance shoe housing designed to move along a window frame contains a spring attached to the housing and to a first pulley block that is movable along the housing, a second pulley block fixed against movement along the housing integrally molded with a brake m... | 07/04/2006 |
| 7036275 | Hung window carrier system and method A hung window carrier system and method is provided. The system includes a jamb having a pair of tracks. Also included is a sash clip to be affixed to a window sash, a carrier having a slidable portion and a window sash support portion, wherein the window sash suppo... | 05/02/2006 |
| 7028371 | Safety brake for block and tackle window balance The present invention relates to inertial braking system for spring-loaded devices, such as block and tackle window balances incorporated in single and double hung window assemblies. In one embodiment, a block and tackle window balance includes a translatable block ... | 04/18/2006 |
| 7024821 | Window with multi-way for opening A window that can be opened in multiple manners such as pushing/pulling and rotating outwards by using a sliding pipe assembly, includes a frame assembly and at least two sash assemblies. A horizontal frame in the frame assembly has a cavity with an opening, a guide... | 04/11/2006 |
| 7013529 | Block and tackle sash balance brake assembly A block and tackle sash balance assembly for providing a counterbalancing force to a sash window pivotally and slideably mounted within a sash window frame is disclosed. The assembly is adapted to disable the counterbalancing force responsive to pivoting of the sash... | 03/21/2006 |
| 7001098 | Lock structure and method for using thereof A lock structure. The lock structure includes a first element, a second element, a guiding element and a fixing pin. The first element has a guide hole and a first through hole located under the guide hole. The second element is deposed under the first element and h... | 02/21/2006 |
| 6990710 | Counterbalance system for a tilt-in window having an improved shoe assembly and anchor mount A counterbalance system for a tilt-in window having novel components. The counterbalance system includes brake shoes, curl springs and spring anchor mounts. The brake shoe assembly of the counterbalance system has a unique, low cost locking mechanism that uses a loo... | 01/31/2006 |
| 6983513 | Spring balance assembly The present invention provides a balance assembly (10) for use with a sash window assembly (104) slidable within a master frame (110). The balance assembly (10) generally includes a plate (20), at least one coil (40), and a ... | 01/10/2006 |
| 6978515 | Balancing device of raising-lowering window A balancing force adjusting device for a window which raises and lowers includes a case, a horizontal gear member, a click member and a vertical gear member. The horizontal gear member is rotatably arranged around the horizontal axis in a predetermined position with... | 12/27/2005 |
| 6968646 | Quick locking pivot shoe A substantially zero clearance clamping pivot shoe having a top camming member and a bottom camming member, each camming member including camming elements. A top clamping element and a bottom clamping element disposed between the camming members for clamping a porti... | 11/29/2005 |
| 6948215 | Window balance A threaded follower mounted on a spiral rod is attached to the first end of a torsion spring, the second end of the torsion spring being connected to a window sash, one end of the spiral rod being attached to a window frame by a gear box that prevents rotation of th... | 09/27/2005 |
| 6948279 | Support system for laterally removable sash A support system for a heavy sash that is laterally removable from between opposed window jambs includes a pair of sash support arms pivotally mounted on each sash stile and counterbalance shoes that engage the support arms to uphold the sash. The support arms, in i... | 09/27/2005 |
| 6938373 | Window sash position maintainer Structure for maintaining a sliding window sash at an intended position with respect to a frame within which the sash moves. The structure serves to retain the sash at a position along an axis generally perpendicular to a plane defined by the window frame. An inward... | 09/06/2005 |
| 6931788 | Locking balance shoe and system for a pivotable window Locking balance shoes and balance systems to be incorporated in pivotable double hung windows includes, in one embodiment, a pair of retractable tabs that partially extend through openings within an inverted window balance. In one embodiment of the method of install... | 08/23/2005 |
| 6928697 | Hinge A hinge for supporting a vent between a closed position in which it lies within a fixed frame and an open position in which it extends substantially perpendicularly to the fixed frame comprises a support track, a slider mounted on the support track and a vent arm at... | 08/16/2005 |
