Lifting hook
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United States of America Patent
Stats
-
Mar 7, 1989
Grant Date -
N/A
app pub date -
Oct 16, 1984
filing date -
Oct 16, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lifting device includes lower arm and upper arms and an intermediate portion bridging between the arms. A suspension link is pivoted at its bottom to the upper arm, and has a hook latch at its upper end for engagement with a crane hook. A telescopically guided spring exerts a separative force between a location on the link and a further location on the upper arm, which force tends to pivot the link toward the closed end of the hook. The latch has a strike panel which can be contacted by the crane hook in order to bring the latch into engagement position. The intermediate portion of the lifting hook is provided with a horizontally slidable shock absorber casing.
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