Selective one-way wrench

Details Selective one-way wrench Selective one-way wrench

2007-04-24

2007-04-24

Meislin, Debra (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S063000

Reexamination Certificate

active

11190523

ABSTRACT:
A selective one-way wrench includes a head defining a first space and a second space communicated with the first space. A gear is put pivotally in the first space. The gear includes a toothed external face. A direction controller is put in the second space. The direction controller includes two toothed faces. A spring pushes the direction controller to the gear. A direction switch includes a first element put pivotally on the head and a second element put in the second space and connected to the first element for bringing selected one of the toothed faces of the direction controller into engagement with the toothed external face of the gear.

REFERENCES:
patent: 2943523 (1960-07-01), Gray et al.
patent: 4274311 (1981-06-01), Ebert
patent: 4420995 (1983-12-01), Roberts
patent: 6134991 (2000-10-01), Chaconas
patent: 6145412 (2000-11-01), Cheng et al.
patent: 6457388 (2002-10-01), Chen
patent: 6513409 (2003-02-01), Lee
patent: 2003/0051583 (2003-03-01), Lin
patent: 2005/0145074 (2005-07-01), Mau
patent: 2006/0081092 (2006-04-01), Chen

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