Rolling gate

Flexible or portable closure – partition – or panel – Plural and/or with rigid closure – Roll type

Patent

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Details

160241, 160311, E06B 908

Patent

active

053459911

ABSTRACT:
A rolling gate of the invention has two gate parts movable toward or away from each other from opposite sides of a gate opening; carriage tracks mounted above the gate opening; a running carriage connected to each gate part and movably mounted on carriage tracks above the gate opening to carry each gate part as the gate parts are moved toward or away from each other; a guide member provided on each gate part extending along a front edge of each gate part; an L-shaped force transmitting element for each gate part, a first end of which is pivotally connected to and slidable along the guide member of that gate part and a second end of which is pivotally connected to a stationary member, advantageously the frame of the gate, and a linear drive for each gate part, which can be a hydraulic or pneumatic drive, including an extendible driven member connected to one of the force transmitting elements to pivot the force transmitting element and thus move the movable gate parts to or from each other to open and close the rolling gate and to provide a controlled clamping force between the closed gate parts.

REFERENCES:
patent: 3090425 (1963-05-01), Carlo
patent: 3090426 (1963-05-01), Carlo
patent: 3386489 (1968-06-01), Denton et al.
patent: 3500894 (1970-03-01), Pofferi
patent: 3504728 (1970-04-01), Wardlaw
patent: 4096902 (1978-06-01), Junod
patent: 4286343 (1981-09-01), Lampka
patent: 4821786 (1989-04-01), Johnston
patent: 4836263 (1989-06-01), Ament
patent: 4874196 (1989-10-01), Goldstein et al.

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