Overhead door with dual safety-edge
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 11, 2001
Grant Date -
N/A
app pub date -
Feb 22, 2000
filing date -
Feb 22, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A door assembly comprising a door body having a bottom edge. The door body is selectively movable up and down to open and close an opening. The door assembly further comprises a first sensor body and a second sensor body. Each sensor body is in communication with a door controller, and each sensor body has an impact portion responsive to an impact proximate the bottom edge of the door body.
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Family
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Cited Art Landscape
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