Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 8146204 | Apparatus and method for canceling opposing torsional forces in a compound balance A method and apparatus for reducing the torque of a compound balance in order to substantially cancel out the torsional force of the torsion spring acting on the spiral rod by creating an equal and opposing torsional force on the extension spring. The apparatus is a... | 04/03/2012 |
| 8060984 | Device and method for improving the installation of pre-tensioned spiral balances in window balances The present device is an extender for pretension spiral rod window balances. The spiral rod extender is attached to the end of the spiral rod by the window or balance manufacturer. At the window manufacturer, the sash is installed into the window frame and the balan... | 11/22/2011 |
| 8042227 | 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... | 10/25/2011 |
| 8028377 | Shoe support terminal connection for block and tackle balance In a block and tackle window balance, the balance shoe holds and upwardly biases the terminal connector in a mounted position. A biasing element of the shoe maintains the terminal connector in a pocket of the shoe during operation of the balance. The terminal connec... | 10/04/2011 |
| 7735192 | Extended travel window balance An extended travel balance including a channel having a first end and a second end, a bottom pulley connected at the second end of the channel, and a bottom guide connectable at a location between the first end and the bottom pulley, and preferably between the botto... | 06/15/2010 |
| 7703175 | Curl spring cover A curl spring mount has a separate cover that can snap fit into the mount to cover and protect the curl springs. A portion of the cover disposed over the vertical space occupied by the curl springs is arranged outside a jamb channel so that the curl springs can occu... | 04/27/2010 |
| 7673372 | 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... | 03/09/2010 |
| 7669284 | 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... | 03/02/2010 |
| 7587787 | 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 ... | 09/15/2009 |
| 7574772 | Spring balance This invention relates to a spring balance, and in particular to a spring balance for use with a sliding sash window. The invention provides a spring balance comprising a top assembly which is securable to a frame member, a bottom assembly which is securable to a sl... | 08/18/2009 |
| 7568260 | Discretionarily adjustable friction block and tackle balance system and uses thereof Disclosed is a discretionarily adjustable friction force block and tackle balance system comprising a housing and an adjustable break, wherein means are provided for adjusting the friction force between an inner surface of the housing and the adjustable break. An ad... | 08/04/2009 |
| 7552510 | 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... | 06/30/2009 |
| 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 |
| 7357284 | Tubular self-retracting device The tubular self-retracting device (2) has an elongated tubular element (6) having an open end, a cord (8) extending through the open end and fitting in the tubular element (6), a clipping element (10) attached to the cord (8 | 04/15/2008 |
| 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 |
| 7282883 | Pivoting and barrier locking operator system A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an operating position and a locking position with the motor assembly bloc... | 10/16/2007 |
| 7252133 | High load operation of an industrial roll door A high load operation industrial roll door, including a flexible door curtain windable about a top roll positioned above a door opening and provided with a drive system. The roll door includes a bottom beam fastened to the door curtain, and a biasing spring, for res... | 08/07/2007 |
| 7228797 | Cordless blind A cordless blind includes a headrail, a bottom rail suspended from the headrail by a first cord and a second cord, a wall covering disposed between the headrail and the bottom rail, and a drive actuator. The drive actuator includes a spring motor, a spool coupled to... | 06/12/2007 |
| 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 |
| 7155778 | 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... | 01/02/2007 |
| 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 |
| 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 |
| 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 |
| 7061197 | Pivoting and barrier locking operator system A system for moving a barrier between limit positions, includes an operator motor assembly mounted proximate to the barrier, wherein at least a portion of the motor assembly is movable between an operating position and a locking position with the motor assembly bloc... | 06/13/2006 |
| 7047693 | Multi-coil spring window counterbalance assembly Disclosed is a multi-coil spring assembly that is mounted in the weight pocket of a vertically operating window. The multi-coil spring assembly allows the user to connect any desired number of coil springs to the counterbalance connector to provide the desired amoun... | 05/23/2006 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6922871 | Articulating glide mechanism for asymmetric door operation The present invention includes an apparatus for guiding movement of an object along a track. The apparatus includes an attachment member defining an opening. A bushing is positioned in the opening and the bushing is laterally moveable within the opening. A plunger i... | 08/02/2005 |
| 6877187 | 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... | 04/12/2005 |
