Tensionless power ratchet wrench assembly

Details Tensionless power ratchet wrench assembly Tensionless power ratchet wrench assembly

2005-08-02

2005-08-02

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Machine

C081S057000, C081S058000

Reexamination Certificate

active

06923095

ABSTRACT:
A power ratchet wrench assembly having a tensionless head wherein operation of the ratchet mechanism does not require a tensioning means for applying a frictional force against the ratchet mechanism to inhibit rotational movement of the ratchet mechanism. In one embodiment, the invention provides a first gear, a second gear, and a ratchet mechanism having a drive body; wherein the drive body is alternately: coupled to the first gear and ratcheting with the second gear, and coupled to the second gear and ratcheting with the first gear.

REFERENCES:
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patent: 6209422 (2001-04-01), Kamiya et al.
patent: 6263768 (2001-07-01), Huang et al.
patent: 6490953 (2002-12-01), Horvath
patent: 6516930 (2003-02-01), Chen

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