One-way ratchet wrench

Details One-way ratchet wrench One-way ratchet wrench

2009-04-24

2011-11-08

Carter, Monica (Department: 3727)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S052000

Reexamination Certificate

active

08051747

ABSTRACT:
A one-way ratchet wrench according to the present invention includes a wrench body, a ratchet wheel, a pawl, an anchor, an elastic element and the following elements. A cover is hollow and annular and is annularly provided with a groove. The cover is mounted on the first receiving recess of the wrench body and presses against engaging teeth. A clip ring is mounted between the clip groove of the wrench body and the groove of the cover. The cover and the ratchet wheel are thereby mounted in the first receiving recess of the wrench body such that the cover and the ratchet wheel would not disengage from the first receiving recess of the wrench body during rotation.

REFERENCES:
patent: 5636557 (1997-06-01), Ma
patent: 6446530 (2002-09-01), Chang
patent: 6539825 (2003-04-01), Lin
patent: 6779422 (2004-08-01), Chen
patent: 6807882 (2004-10-01), Hu
patent: 2003/0041697 (2003-03-01), Hsien
patent: 2004/0163498 (2004-08-01), Liu
patent: 2007/0101832 (2007-05-01), Lee

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