Tang and ratchet wrench with rotating disc operated...

Details Tang and ratchet wrench with rotating disc operated... Tang and ratchet wrench with rotating disc operated...

2006-08-01

2006-08-01

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S060000

Reexamination Certificate

active

07082860

ABSTRACT:
Provided is a tang and ratchet wrench combination comprises drive teeth around an interior surface of an enclosed box portion, a rotatable drive mechanism in the box portion and having a square drive tang, a rotating disc having a shaft in the drive mechanism, and two spaced reversing pawls in cavities of the drive mechanism adapted to releasably engage with both the shaft and the drive teeth. Rotating the handle will pivot the reversing pawls for driving and ratcheting. Also, rotating the rotating disc will move a spring depressible detent from a first positioning tooth to a second one for changing direction of drive and ratcheting.

REFERENCES:
patent: 2193984 (1940-03-01), Rhinevault
patent: 3290969 (1966-12-01), Bergquist et al.
patent: 4807500 (1989-02-01), Main
patent: 6047802 (2000-04-01), Huang
patent: 6227077 (2001-05-01), Chiang
patent: 6279428 (2001-08-01), Huang
patent: 6925912 (2005-08-01), Huang

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