Ratchet wrench

Details Ratchet wrench Ratchet wrench

2006-06-27

2006-06-27

Shakeri, Hadi (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S062000, C192S043100

Reexamination Certificate

active

07066054

ABSTRACT:
A ratchet wrench includes a base connected to a handle and a cylindrical top on the base has two recesses for receiving two pawls therein. Each recess includes a hole in an inner bottom thereof so that the two pawls are pivotably inserted in the two holes by their respective shafts. A ring is rotatably mounted to the cylindrical top and has a concaved area for allowing at least one of the two pawls to be extended outward. A driving member having a skirt portion which has teeth defined in an inner periphery thereof and the teeth are engaged with at least one of the two pawls. The base is easily to be manufactured and the two shafts of the two pawls are easily to be assembled in the recesses.

REFERENCES:
patent: 4404874 (1983-09-01), Lieser
patent: 6260446 (2001-07-01), Hu
patent: 6644147 (2003-11-01), Huang
patent: 2005/0204869 (2005-09-01), Shu

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