RESTRAINT CHAIN STORAGE
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United States of America Patent
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N/A
Issued Date -
Dec 3, 2009
app pub date -
Jun 3, 2008
filing date -
Jun 3, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A temporary barrier chain for a loading dock door opening includes a vertical orientated storage tube on one side of the opening and a retainer on the other side thereof, and a counterweighted chain extending from inside the storage tube to a retainer on the other side of the opening, with the chain being comprised, at least partially, of successively lighter weight sections toward the retainer end such that the combined weight of the counterweight and suspended chain within the storage tube will cause the chain to be automatically retrieved into the storage tube when released from the retainer.
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