Locking system for extension members on portable lifts
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United States of America Patent
Stats
-
Sep 16, 1997
Grant Date -
N/A
app pub date -
Apr 18, 1994
filing date -
Apr 18, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking system for extension members on portable lifts or the like has a wedge block with a jaw face on one side and a sloped wedge face on the opposite side engaging a complementing fixed sloped face so that when the wedge block is moved upwardly the complementing faces cause the wedge block to also move horizontally into clamping position by way of the jaw face. The wedge block is moved upwardly responsive to turning of a screw threaded into the block.
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Family
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Cited Art Landscape
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