|
Match
|
Document |
Document Title |
|
|
6766847 |
Auto-reversible folding sliding door
An auto-reversible folding sliding door is constructed to include a horizontal top track, a vertical post fixedly provided at one end of the track, a hollow cylindrical casing movable, a folding...
|
|
|
6684931 |
Counter weight door
A counter weight door has a plurality of counter weights each associated with a respective one of the panels and an interconnecting spring connecting each of the weights to the next. At least one...
|
|
|
6560927 |
Counteraction system for a sectional door
A counteraction system for a sectional door includes a counterweight system that helps counterbalance the weight of the door and helps hold the door in place when the door is fully open. The...
|
|
|
6019156 |
Roll-up door
An overhead door including a door panel vertically movable between a lowered position when the door is closed and a raised position when the door is open, and a motor drivingly connected to a lower...
|
|
|
5671500 |
Overhead door spring shield system
The invention relates to a design for covering and protecting an overhead door spring assembly from the coercive and deteriorating effects caused by the environment that overhead spring assembley's...
|
|
|
5558147 |
Door counterweight assembly
A door counterweight assembly for positioning on a door shaft is disclosed. A pair of spaced disks are mounted on the door shaft and a tape drive member extends between the disks parallel to the...
|
|
|
5482103 |
Door apparatus with release assembly
A closure apparatus for closing an opening in a partition with a frame disposed around the opening includes a drum member rotatably mounted to the partition at the top end of the opening. It also...
|
|
|
5377737 |
Screen retractor mechanism
A base end of the foldably stretchable accordion screen 10 is fixed to an inner portion of the receptacle box frame 13 which constitutes one of the side frame members of a screen support frame...
|
|
|
5307857 |
Balancing device for a raisable-curtain goods-handling door
A balancing apparatus for a raisable-curtain goods-handling door includes a shaft on which a curtain is wound up or on which curtain-raising straps are wound up. The shaft supports two drums onto...
|
|
|
5259433 |
Door counterweight system
An overhead door system employs counterweights which operate through cables connected to a drum which tapers from one end to the other so that the effective force acting on the door in the opening...
|
|
|
5222541 |
Industrial door having releasable beam and tension bracket retention mechanism
An industrial roll-up door, having a releasable beam and a tension bracket retention mechanism. The door includes a flexible door panel, which is wound in coiled form on a drum, and an elongated...
|
|
|
5207259 |
Fastening assembly
The invention provides a roll-up door for operation with a pre-tensioned balancer and having fastening apparatus comprising a cable with fasteners, one on each end, and which is coupled to the door...
|
|
|
5103890 |
Door counterweight system
An overhead door system employs counterweights which operate through cables connected to a drum which tapers from one end to the other so that the effective force acting on the door in the opening...
|
|
|
5050943 |
Biological safety cabinet with window counterbalance
A biological safety cabinet vertical lift assist system employing one or more pneumatic springs operatively connected to the cabinet and sliding window to counterbalance the window's weight to...
|
|
|
4953611 |
Partition wall consisting of double-walled panels coupled pivotally to each other
The invention relates to a partition wall movable in an opening and consisting of double-walled panels coupled pivotally to each other at the standing edges, alternate panels being formed with a...
|
|
|
4887658 |
Flexible counterweight system for overhead doors and like installations having removable weights
A counterweight system for an overhead door or like installation includes an elongate flexible belt having a series of pockets to receive weights, the belt being suspended at the side of the door...
|
|
|
4884617 |
Roll-up shutter structure
A device having a shutter windable around a spindle and especially adapted to close a bay or other opening by the unwinding of the shutter, the same having flexible side edges which project beyond...
|
|
|
4793398 |
Hangar door assembly
An articulating door is fixed to a torque tube through a plurality of structural tube elements and gussets. The torque tube is rotatably fixed to the building. A sprocket, which is engaged to the...
|
|
|
4120341 |
Greenhouse door assembly
A door assembly suitable for relatively large openings such as greenhouse ends which comprises upper and lower door panels hinged together at the middle of the door with the upper panel hinged to...
|
|
|
3981343 |
Counterbalancing mechanism for rolling doors
A counterbalancing mechanism for an articulated rolling door mounted for movement horizontally away from the doorway when the door is opened, with the weight of the vertical portion of the door...
|
|
|
3934635 |
Overhead door for a container having a vertical opening such as a truck trailer
An overhead door for the vertical opening of a truck trailer comprises a plurality of panels connected together by hinges, which extend the width of the panels and are confined within the panel....
|
|
|
3454074 |
AUTO OP'NER GARAGE DOOR
|
|
|
3198242 |
Upwardly acting door and seal means therefor
|
|
|
3120033 |
Sliding door, or the like, with floating rollers
|
|
|
3094163 |
Counterweighted upward acting door
|
|
|
3017842 |
Bulkhead
|
|
|
2897887 |
Manually operated folding panel
|
|
|
2818250 |
Automatic garage door opening mechanism
|
|
|
2721610 |
Door construction
|
|
|
2711902 |
Forage box end gate
|
|
|
2707653 |
Closures for openings in truck bodies
|
|
|
2700420 |
Garage door
|
|
|
2681699 |
Garage door
|
|
|
2629435 |
Bumper-operated garage door
|
|
|
2609193 |
Spring sash counterbalance
|
|
|
2523929 |
Counter-balanced closure
|
|
|
2519809 |
Printing plate coating machine
|
|
|
2514370 |
Door
|
|
|
2458604 |
Garage door
|
|
|
2366793 |
Overhead garage door
|
|
|
2362789 |
Door
|
|
|
2322377 |
Door
|
|
|
2320604 |
Door
|
|
|
2308585 |
Overhead door
|
|
|
2291583 |
Overhead door construction
|
|
|
2274216 |
Door assembly
|
|
|
2239462 |
Bracing means for canopy doors
|
|
|
2228608 |
Operating means for canopy doors
|
|
|
2222151 |
Operating means for canopy doors
|
|
|
2214229 |
Counterbalancing actuator for doors and the like
|