Hydraulic leveraged overhead door assembly
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United States of America
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Mar 18, 2025
Grant Date -
N/A
app pub date -
Jan 15, 2022
filing date -
Jan 15, 2022
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is a door assembly including a rectangular door frame, a bi-fold door pivotally mounted at the top of the rectangular door frame and at least one hydraulic cylinder assembly. The hydraulic cylinder assembly is pivotally secured by a first end to a cylinder support mounted on a back side of the door frame, and by a second lower end to a cylinder support secured to a back surface of a top panel of the bi-fold door. In the door closed position, the longitudinal axis of the cylinder is oriented at an acute angle away from a plane defined by the door pivot axis and the lower pivot axis of the cylinder. A hydraulic control assembly controls movement of the door between an open and closed position.
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Family
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Cited Art Landscape
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