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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 (...
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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...
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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...
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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...
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7472457 |
Guide and support device for a furniture door
A guide and support device ( 1 ) for the door ( 7 ) of an item of furniture ( 13 ) is described, comprising a support ( 2 )—which carries at least one body ( 3 ), a second body ( 4 ) slidable on...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 (...
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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...
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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...
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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...
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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...
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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...
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6735820 |
Apparatus for closing sliding doors
An automatic door closer for a sliding door. The closer has a reel with a cable extending around a pulley on the end of the rod of a return mechanism. In preferred embodiments, the return mechanism...
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6684454 |
Support mechanism for tilted window sash
A cord tensioned by a spring supports the sash of a hung window in a stationary position while the sash is tilted for cleaning. The cord pulls a pulley attached to the spring which extends as the...
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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...
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6615897 |
Apparatus for winding a spring
An apparatus for winding a spring on a shaft, such as for counterbalancing a roll-up door, includes a housing that carries a transmission which is positionable over the shaft. The transmission is...
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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...
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6598264 |
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...
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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...
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6502281 |
Plug for operatively connecting torsion springs to overhead shafts of counterbalancing systems used for garage doors and the like
A plug for use in a counterbalancing mechanism of a cable-operated door. The plug is mounted about an overhead shaft and used for operatively connecting the overhead shaft to a torsion spring...
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6470530 |
Externally mounted window spring balance replacement device assembly
The invention is an externally mounted window spring balance device assembly for installation on single or double-hung sash windows either not originally equipped with a counter balance device or...
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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...
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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...
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6378169 |
Mounting arrangement for constant force spring balance
A mount for one or more constant force curl springs uses a mounting block secured within a sash shoe channel to support the underside of a lowermost curl spring with a superposed curl spring...
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6327744 |
Roll-up door counterbalancing apparatus and method
The disclosure sets forth an apparatus and method for counterbalancing a roll-up door. A first threaded shaft is concentrically disposed around a torsion shaft and a spring is also disposed around...
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6263541 |
Winding cone of an overhead door counterbalancing mechanism and torsion spring winding method therefor
A method of securing a torsion spring used in a counterbalance system in which the spring torsion cannot be released without first supporting any existing spring torque utilizes a torsion spring...
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6115884 |
Window balance
In a counterbalance having a torsion spring which is torqued by a thread follower rotated by axially reciprocal movement of a spiral rod through the follower and into the torsion spring, the pitch...
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6041476 |
Inverted block and tackle window balance
Pulleys of a block and tackle window balance include hub steps that interact with other components to reduce the introduction of dirt and dust particles into areas vulnerable to wear. The hub steps...
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6032417 |
Corner locking carrier shoe for tilt sash
A tilt sash counterbalance system has a carrier shoe with a locking cam that moves a locking component to a corner-to-corner locking position within a shoe channel. This is done by moving the...
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5930865 |
Extension spring-type assembly for raising sectional door
The assembly comprises an extension spring anchored at one end to a winch mounted to the door opening frame. A double-grooved pulley is mounted on a plate secured to the free end of the spring. A...
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5772190 |
Spring member
A coextruded plastic spring member is disclosed which is bendably disposable between first and second member to create a spring force therebetween. The spring member includes an elongated base...
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5737877 |
Block and tackle balance with integral, non-rotating pulley system
A block and tackle balance disposed between a jambliner and a window sash includes a spring and a non-rotating pulley system. A head block is disposed on a rod for attaching the balance to the...
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5694664 |
Coupling for spiral counterbalance
A coupling between a twisted rod and a torsion spring of a spiral counterbalance is found to be subject to deformation against the twisted rod from compressive force of the grip of the terminal...
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5671566 |
Winged jamb liner
A jamb liner is mounted in the side jamb tracks of a window frame to mount window units of double hung windows for slidable movement between opened and closed positions. The liner includes...
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5526608 |
Extruded window jamb liner with yieldable sealing means
A jamb liner is provided for a window assembly including a frame and a sash operably mounted in the frame by use of the jamb liner. The jamb liner includes a sash-engaging portion having at least...
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5463793 |
Sash shoe system for curl spring window balance
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...
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5445364 |
Load counterbalancing coiled wire spring assembly
A load counterbalancing coiled wire spring assembly adapted to provide predetermined nonuniform bending stress induced torsional load supporting force in response to load induced longitudinal...
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5365638 |
Spring mounting for sash frame tensioning arrangements
A mounting element and assembly for a sash frame tensioner used in a sash window frame to support the window in any desired open position, the assembly comprising a channel section member and a...
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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...
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5267416 |
Window sash counterbalance with varying lift
A multiple spring counterbalance includes a torsion spring and a tension spring for exerting a combined lifting force on a window sash. A spiral rod is threadably engaged with a follower nut for...
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5265308 |
Jamb liner
A jamb liner for a double hung window wherein a length of the jamb liner is mounted to and overlies each of the jamb sides defining the window opening. Each jamb liner has a front profile...
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5232208 |
Springs for sash frame tensioning arrangements
A coiled ribbon spring comprising a coiled ribbon spring body and, at a free end thereof, a tongue portion having first engagement means for operative connection to an object to be tensioned, said...
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5206973 |
Sound-deadener for window torsion balance
This invention, which provides a solution to the long-standing problem of motion-related rattle in torsion balances for windows, is based upon the discovery that the major source of the rattle is...
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5203546 |
Window spring damping apparatus
A window noise attenuation device that keeps window balance springs from ratting against the inside of the spring covers when the balance spring is caused to vibrate. The apparatus is designed to...
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