Wrench

Details Wrench Wrench

2006-03-21

2006-03-21

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S061000, C081S062000

Reexamination Certificate

active

07013761

ABSTRACT:
A wrench includes a body, a control device, a pawl and a joint. The body includes a handle and a ring. The control device includes a disc pivotally received in the ring and a stem projecting from the disc and including upper, lower and intermediate sections. The pawl is connected with the disc and formed with a toothed end for engagement with the teeth of the ring and two arc-shaped sides. The joint includes a disc received in the ring, an insert installed beneath the disc, stops installed on the disc for selective engagement with the arc-shaped sides of the pawl, and a ball detent trapped in a hole defined in the insert for selective engagement with one of the intermediate and lower sections of the stem.

REFERENCES:
patent: 3250157 (1966-05-01), Badger
patent: 6109140 (2000-08-01), Roberts et al.
patent: 6431031 (2002-08-01), Hu
patent: 6568298 (2003-05-01), Zinck

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