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| Number | Title | Issue Date |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 6883272 | Housing assembly for installation in a window frame Housing for installation in a window frame having a window sash with a notch defining a pair of opposed edges. Each housing includes side walls and a top wall extending beyond the side walls to define a flange. Each housing further includes protuberances, such as tr... | 04/26/2005 |
| 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 |
| 6820368 | Snap lock balance shoe and system for a pivotable window The invention relates to a snap lock balance shoe and balance systems to be incorporated in pivotable double hung windows and installation methods of such systems. In one embodiment, the snap lock balance shoe includes a pair of retractable tabs that partially exten... | 11/23/2004 |
| 6802105 | Spring balance assembly The present invention provides a spring balance assembly for use with a sash window. The spring balance assembly comprises a plate, clip, pivot brake assembly, and first and second coil springs. The plate has a first portion, second portion, and a generally perpendi... | 10/12/2004 |
| 6679000 | Snap lock balance shoe and system for a pivotable window This application relates to apparatus for a snap lock balance shoe and system to be incorporated in pivotable double hung windows. In one embodiment, the snap lock balance shoe includes a frame, a locking member at least partially disposed within the fram... | 01/20/2004 |
| 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 |
| 6604324 | Housing assembly for installation in a window frame Plural protuberances are provided along each side of a tilt latch or pivot housing. The protuberances each form an edge that engage an edge of a notch in a window sash. The protuberances are provided with flexible fingers that are flexed or sheared by the... | 08/12/2003 |
| 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 |
| 5970656 | Housing assembly with beveled retainers for installation in a window frame Plural retainers are provided along each side of a tilt latch or pivot housing. The retainers each form an engagement surface that engages an edge of a notch in a window sash. The tilt latch retainers are flared upwardly and beveled rearwardly to facilita... | 10/26/1999 |
| 5924243 | Rotor for a sash balance brake and pivot pin assembly A sash balance brake and pivot pin assembly for a sash window that maintains the window substantially square prior to installation. The pivot pin extends outwardly from the window sash. The sash balance brake is disposed within a track in the window frame... | 07/20/1999 |
| 5806243 | Sash balance brake assembly A sash balance brake assembly for a sash window system. The sash window system includes a window frame having a pair of generally parallel tracks. Each of the tracks has an outer wall, front and back intermediate walls and front and back inner walls colle... | 09/15/1998 |
| 5661927 | Sliding counterbalance assembly for a sash window A slidable counterbalance assembly adapted for a sash window assembly disposed within a master frame is disclosed. A coiled leaf spring mounted on the counterbalance assembly has its upper end attached to the top of the guide rail channel of the master fr... | 09/02/1997 |
| 5572828 | Pin lock for tilt sash lock shoe A sash pin engaging a locking element of a tilt shoe has a downwardly oriented hook that engages an edge of the locking element when the sash is untilted so that the sash pin cannot be accidentally withdrawn from the shoe. This avoids all the problems tha... | 11/12/1996 |
| 5414962 | Removable sash window construction having releasable guide members A window assembly has a sash vertically movable within a window jamb and positioned in the jamb by elongated side guide tubes enclosing counter balance means and resiliently biased partially into engagement with side ploughs of said sash, with the guide t... | 05/16/1995 |
| 5353548 | Curl spring shoe based window balance system A window balance system for a tilt sash uses a pair of constant force curl springs having curled convolutions carried by sash shoes and free end regions mounted in sash shoe channels above the region of travel of the shoes. The recurl tendency of the spri... | 10/11/1994 |
| 5231795 | Lock shoe system for heavy sash A lock shoe system for an especially heavy sash has shoes with lock bolts that can be moved into locking positions by means of a tool that moves a bolt from underneath a shoe so that the bolt interlocks with a lance in the jamb liner. Once the shoes are l... | 08/03/1993 |
| 5189838 | Tilt sash lock shoe system A counterbalance shoe of a tilt sash lock shoe system runs in a resin shoe channel of a jamb liner and locks against a rib extending into the shoe channel so that the rib is backed up by a surface of the shoe. A locking element carried by the shoe is coun... | 03/02/1993 |
| 5042199 | Prefabricated window system A prefabricated window system includes a main frame which is fabricated from thermoplastic elements having substantially the same cross-sectional configuration. Windows and a screen are slideably mounted in the main frame. A thermoplastic sill is snap-con... | 08/27/1991 |
| 5027557 | Sound silenced window frame jamb liner sash guide pocket Disclosed is a sound silenced window frame jamb liner sash guide pocket. A layer of resilient material is coextruded with the material of the jamb liner to provide reverberation dampening of a window sash spring balance located within the jamb liner sash ... | 07/02/1991 |
| 4949425 | Spring loaded block and tackle window sash balance assembly A pre-assembled, spring loaded, block and tackle window sash balance assembly is adapted for providing vertical support for a window sash running in an elongated, generally upright sash run having a generally C-shaped guide channel extending along its plo... | 08/21/1990 |
| 4941285 | Lift-off shoe system for tilt window A lift-off shoe system uses non-locking sash support shoes (30) movable vertically and spring biased upwardly in a tilt window. Sash pins (25) have heads (26) that interlock with open top slots (31) in sash shoes (30) so that the sash pins are removable f... | 07/17/1990 |
| 4935987 | Self-contained heavy duty constant force sliding sash counterbalance assembly A self-contained heavy duty constant force sliding sash counterbalance assembly embodying a stacked plurality of coil springs each having a uniform coiling and recoiling force throughout all of the various coils irrespective of the individual coil spring ... | 06/26/1990 |
| 4932453 | Prefabricated window system with an overhanging still A prefabricated window system includes a rectangular main frame having a top frame portion, a bottom frame portion, and two side frame portions. The frame portions are extruded thermoplastic elements having substantially the same cross-sectional configura... | 06/12/1990 |
| 4922657 | Locking slide for tilt-out window balance system A locking slide device for use in a double-hung window assembly wherein one or more sash are adapted to tilt inwardly about a pair of pivot pins located at the lower portion of the sash. The pivot pins are received in carrier slides which are adapted to c... | 05/08/1990 |
| 4914861 | Window tilt clutch system Disclosed is a braking system for braking movement of a window sash within a window frame jamb liner. A window tilt clutch member is operably attached to the window sash for normal vertical movement within the window frame jamb liner sash guide pocket. Wh... | 04/10/1990 |
| 4914780 | Compound counterbalance and winding systems with zero torque spirals A compound counterbalance system for window sashes and the like, comprising: a biasing spring for easing operation of a window sash and the like, the biasing spring being movable at an inherently variable rate of force; a first biasing force transmission ... | 04/10/1990 |
| 4887389 | Tilt lock jambliner and slidable block The present invention is directed to a tilt lock jambliner and slidable block used with windows that both slide vertically and tilt inwardly. The window sash slides within the jambliner channel of a window frame. A pivot bar is fixedly attached to the win... | 12/19/1989 |
| 4885871 | Audibly locking shoe system for take-out window A lock shoe system for a take-out window having take-out jamb liners (10) uses a pair of fins (22) extending laterally outward from opposite sides (18) of a sash pin slot (16) in the jamb liner for supporting lock shoes (30) that move vertically in lock s... | 12/12/1989 |
