Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Patent
1988-08-23
1990-07-03
Schmidt, Frederick R.
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
403365, B25B 2316
Patent
active
049381075
ABSTRACT:
A socket wrench drive extension incorporates a quick release and locking feature. The extension is used in conjunction with a ratchet drive and standard mechanics sockets for driving threaded fasteners. The extension uses a longitudinal control bar which bears directly or indirectly on a detent contained in a transverse bore at the driving end of the extension. The control bar fits in a channel on the exterior of the extension and is operated through the retraction of a spring loaded collar.
REFERENCES:
patent: 4768405 (1988-09-01), Nickipuck
501 Qualicorp, Ltd
Rachuba M.
Schmidt Frederick R.
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