A - Human Necessities – 63 – B
Patent
A - Human Necessities
63
B
A63B 59/14 (2006.01) A63B 53/02 (2006.01)
Patent
CA 2094741
ABSTRACT OF THE DISCLOSURE A replaceable stick blade is to be fitted with a reusable hollow ended shaft. The blade itself has a shaft fitting shank with a releasable interlock system comprising a blind ended recess in one side of the shank, a first threaded member held against rotation in the blind ended recess and a second threaded member movable radially of the shank between a shaft release and a shaft locking position by threading inwardly and outwardly of the first threaded member.
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