Extension handle for tree top pruners
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United States of America Patent
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-
Jul 20, 1993
Grant Date -
N/A
app pub date -
Aug 17, 1992
filing date -
Aug 17, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An extension handle for a tree pruner consisted of an inner sleeve movably retained inside a connecting socket to hold a handle tube and a shear holder tube, wherein the inner sleeve has an inward flange to stop the handle tube, a plurality of raised portions adjacent to the bottom end thereof engaged into respective recessed holes on the handle tube to hold the handle tube in place, a plurality of steel balls in respective recessed holes adjacent to the top end thereof engaged into respective recessed holes on the shear holder tube to hold the shear holder tube in place. A constraining ring is mounted on a top flange on the connecting socket and retained in place by hooks to constrain the steel balls inside the respective recessed holes on the inner sleeve. The shear holder tube has a tightening up screw for fastening a tree pruner.
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