Ladder lock
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United States of America Patent
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-
Dec 21, 1982
Grant Date -
N/A
app pub date -
Dec 16, 1977
filing date -
Dec 16, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A locking mechanism for a ladder of the extension type having sections slidable over each other where such locking mechanism is affixed to one section and hooks over a rung of the other section to secure the two sections at the desired height, and where such locking mechanism is withdrawable from the plane of the second section during raising or lowering of this section such that it does not bounce and bump against the rungs of the second section during raising or lowering.
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