Ratchet wrench having reinforced strength

Tools – Wrench – screwdriver – or driver therefor – Handle clutched to head

Reexamination Certificate

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Details

C081S063200

Reexamination Certificate

active

07444903

ABSTRACT:
A ratchet wrench includes a wrench body provided with a mounting hole and a receiving chamber, a ratchet wheel mounted in the mounting hole of the wrench body and provided with a plurality of ratchet teeth, and a pawl member mounted in the receiving chamber of the wrench body and having a first end provided with a plurality of locking teeth engaged with the ratchet teeth of the ratchet wheel and a second end provided with a sliding face slidable on the ratchet teeth of the ratchet wheel. Thus, the locking teeth of the pawl member are engaged with the ratchet teeth of the ratchet wheel closely and completely, so that the pawl member is combined with the ratchet wheel exactly.

REFERENCES:
patent: 6155140 (2000-12-01), Tsai
patent: 6216563 (2001-04-01), Hsieh
patent: 6382052 (2002-05-01), Chen
patent: 6481315 (2002-11-01), Chang et al.
patent: 6820520 (2004-11-01), Chen
patent: 2007/0101832 (2007-05-01), Lee

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