Flexible or portable closure – partition – or panel – Plural strip – slat – or panel type – With mounting or supporting means
Patent
1987-01-08
1988-12-27
Britts, Ramon S.
Flexible or portable closure, partition, or panel
Plural strip, slat, or panel type
With mounting or supporting means
160190, 49334, E05D 1526
Patent
active
047933984
ABSTRACT:
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 torque tube, is driven by an electric motor and gear reduction drive, and a chain reduction drive. An arm assembly and counterbalance element counterbalance the door as it moves between its open and closed positions. In its open position, the door remains folded exteriorly of the building.
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Photographs of Hangar Door Assemblies.
Hoff John D.
Hoff Robert A.
Britts Ramon S.
Purol David M.
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