Reversible screwdriver with angle and length adjustable driving

Details Reversible screwdriver with angle and length adjustable driving Reversible screwdriver with angle and length adjustable driving

1997-12-31

1999-08-31

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

811778, 811777, 192 44, B25B 1300, B25B 2316, F16D 334

Patent

active

059439211

ABSTRACT:
A hand tool which includes a handle holding a sleeve on the inside, a shaft moved in and out of the sleeve, a coupling member pivoted to the shaft and turned between a first position where the coupling member and the shaft are axially aligned, and a second position where the coupling member and the shaft are retained at right angles, and a control device coupled to the coupling member and shifted between a first position for forward/backward driving, a second position for forward driving only, and a third position for backward driving only.

REFERENCES:
patent: 2182673 (1939-12-01), Magnano
patent: 5515754 (1996-05-01), Elkins
patent: 5632186 (1997-05-01), Lin
patent: 5829325 (1998-11-01), Tseng

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