BREAKAWAY ELEMENTS FOR A HORIZONTAL SIDE-MOVING DOOR
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United States of America Patent
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Issued Date -
Sep 24, 2009
app pub date -
Mar 24, 2008
filing date -
Mar 24, 2008
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A horizontal side-moving door with a side-winding curtain or horizontally translating panel includes a breakaway brace that helps hold a relatively rigid leading edge of the curtain or panel in a substantially vertical orientation. Should a forklift accidentally strike the leading edge of the curtain or panel, a replaceable shear pin incorporated in the brace breaks away to release the leading edge, thus protecting the edge from damage. Although the shear pin can break into two or more pieces, the brace includes means for holding the pieces in place and preventing them from falling and hitting anything underneath the pin. Although with some limitations, the door is still operational even while the pin is broken.
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