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| Number | Title | Issue Date |
| 8074402 | Frictional drop resistance for sash counterbalanced by curl springs Window sash counterbalances using curl springs and holders can increase resistance to sash drop without causing sash hop by using a high coefficient of friction bearing surfaces against which curled up coils of curl springs slide when uncurling or re-curling. The hi... | 12/13/2011 |
| 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 |
| 7240946 | System for counterbalancing a tailgate A counterbalancing system is provided that can be easily installed to an exterior of a tailgate and provides a mechanism for arresting the tailgate in an open position. The system includes a stop assembly coupled to the vehicle and a counterbalance assembly adapted ... | 07/10/2007 |
| 7174939 | Window A window design is provided with a pair of vertical jambs, a head jamb, a meeting rail and a sill. In one embodiment, an upper sash is secured in a fixed position between the vertical jambs, head jamb and meeting rail. Interior jambs are provided to extend outwardly... | 02/13/2007 |
| 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 |
| 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 |
| 7121042 | Door assembly for sealing a chamber A door assembly providing an airtight seal for a chamber. The door assembly includes a link assembly that allows a door to move inward toward a gasket sealing an opening into the chamber. ... | 10/17/2006 |
| 7111430 | Window sash tilt control A window assembly has a frame with balance channels to opposite sides of the frame, balance devices in the channels and a sash which is both slideable and tiltable relative to the frame. Also provided is a sash tilt limit bar which has a first end attached to the sa... | 09/26/2006 |
| 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 |
| 7093349 | System for manufacturing sash window assemblies A balance assembly (15) is provided for a sash window assembly (10). The sash window assembly (10) has a sash window (12) slidable within a master frame (14). The balance assembly (15) has an elastomer balance member (30 | 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 |
| 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 |
| 7066822 | Multidirectional amusement device A multidirectional amusement device is shown having a support structure extending above a support surface. A ride vehicle is secured to the support structure with support lines and is allowed to move freely beneath the support towers. A retraction tower receives a t... | 06/27/2006 |
| 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 |
| 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 |
| 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 |
| 6886295 | Brake shoe with spring brake member A brake assembly (24) locks a slidable sash window (14) within a track (16) of a frame (12). The track (16) has a pair of spaced apart, opposed sidewalls (20), the brake assembly (24) includes a slider body (28... | 05/03/2005 |
| 6860066 | Shoeless curl spring counterbalance system for a tilt-in window A counterbalance system for a tilt-in window and its associated method of operation. The system uses wound spring elements to provide a counterbalancing force to the sashes of the window. The wound springs are configured to define open central regions. Hubs are atta... | 03/01/2005 |
| 6857228 | Counterbalance system for a tilt-in window A counterbalance system for a tilt-in window that has tilt post brackets. The tilt post brackets selectively mount to the vertical side elements of a window sash. Accordingly, the tilt post brackets need not be manufactured into the structure of the sash. Each tilt ... | 02/22/2005 |
| 6848148 | 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... | 02/01/2005 |
| 6840011 | Window panel balance apparatus and method A window having a window panel that slides in a frame and at least one balancer that is secured to the window panel is disclosed. The window is of the tiltable hung type having a vertical operating position in which the balancer slides with the window panel in the f... | 01/11/2005 |
| 6814658 | Automatic sash return for work chamber A counterweight apparatus is provided for automatically self-returning an enclosure sash or other closure member to at least one preselected intermediate position when released after being opened beyond that intermediate position and for selectively maintaining the ... | 11/09/2004 |
| 6802156 | Hurricane resistant window A replacement window having a window frame, the window frame having a window header, a window sill, a first frame jamb, and a second frame jamb, wherein the first frame jamb and the second frame jamb each connect the window header to the window frame and the window ... | 10/12/2004 |
| 6751904 | Balance system for sash window assembly A balance assembly (15) is provided for a sash window assembly (10). The sash window assembly (10) has a sash window (12) slidable within a master frame (14). The balance assembly (15) has an elastomer balance member (30 | 06/22/2004 |
| 6655088 | Safety break for an overhead door An arrangement for monitoring a condition of a counterbalance torsion spring in an overhead door or gate and preventing the door or gate from accidentally slamming shut or dropping too rapidly when the spring fails. The arrangement includes a drum mounted... | 12/02/2003 |
| 6622342 | 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 assembly (7) a... | 09/23/2003 |
| 6606761 | Spring mounting arrangement for a sash window counterbalance arrangement A sash window counterbalance arrangement for counterbalancing the weight of a sash window includes a spring support mounting located within a channel in a sash window jamb, a sash shoe slidable in the channel, a spring arrangement which generates a spring... | 08/19/2003 |
| 6607221 | Window latch system A sliding latch and locking mechanism, for windows and doors, whereby the latching mechanism provides a means for discrete position retention of a sliding window or door and provides an increased measure of security. The latching system combines four mode... | 08/19/2003 |
| 6584644 | 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 su... | 07/01/2003 |
| 6553620 | Balancing spring system for sliding window sash A balancing spring system for facilitating the opening and the closing of a window sash assembly slidably mounted in channels of opposed window jambs comprises a connector strip. The connector strip has a front surface and a rear surface. The connector st... | 04/29/2003 |
| 6523307 | Balance system for sash window assembly A balance assembly (15) is provided for a sash window assembly (10). The sash window assembly (10) has a sash window (12) slidable within a master frame (14). The balance assembly (15) has an elastomer balance member (30) having one end adapted to be conn... | 02/25/2003 |
| 6467128 | Block and tackle sash counter balance The present invention is an apparatus and method of assembling a block and tackle counter balance for windows that reduces the cost of manufacture and installation. In particular, the balance provides vertical support to a window sash using a semi-rigid c... | 10/22/2002 |
| 6412144 | Counterbalance spring mounting arrangement for a sash window A sash window counterbalance arrangement for counterbalancing the weight of a sash window, includes a sash window jamb with a channel defined within the sash window jamb, the channel having a rear wall and a pair of side walls, a sash window shoe slidable... | 07/02/2002 |
| 6397530 | Sliding service window assembly A sliding service window assembly may be provided with a weight that automatically closes a window. The weight may be attached through a wire to a bracket on the top of the window so that whenever the window is released, it automatically closes. Through t... | 06/04/2002 |
| 6393661 | Spring mounting arrangement for a sash window counterbalance arrangement A sash window counterbalance arrangement for counterbalancing the weight of a sash window includes a spring support mounting locating within a channel in a sash window jamb, a sash shoe slidable in the channel, a spring arrangement which generates a sprin... | 05/28/2002 |
| 6375175 | Lifting mechanism The invention relates to a lifting mechanism for spring-assisted actuation of a covering means of a dishwasher such as a door or shutter, having at least one lever which is mounted on a shaft and is connected to a tension spring. Arranged, in this case, b... | 04/23/2002 |
| 6338222 | Universal sash tether clasp and anchoring apparatus for window counterbalancing system A window sash tether clasp and anchoring system which is externally mountable for universal use in connection with new or pre-existing conventional double-hung windows, wherein the sash tether clasp is externally mounted on the lower sash of such window a... | 01/15/2002 |
| 6243988 | Actuating device for a closing element movable in a vertical direction The invention relates to an actuating device for a closing element movable in a vertical direction within openings which are guided in lateral guides, with the door weight being taken up by a spring-loaded tension element or being compensated by a counter... | 06/12/2001 |
