Ratchet wrench

Details Ratchet wrench Ratchet wrench

2006-10-24

2006-10-24

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C081S061000, C081S062000, C081S063200, C192S043100

Reexamination Certificate

active

07124664

ABSTRACT:
A ratchet wrench including a head section formed with two slots and two pawls each having a post slidably fitted through the slots. The ratchet wrench further includes a shift member formed with two slots respectively intersecting the slots of the head section. The posts of the pawls are slidably inlaid in the slots of the head section and the slots of the shift member. By means of shifting the shift member, the pawls can be directly driven to slide along the slots, whereby one of the pawls is engaged with the ratchet wheel, while the other of the pawls is disengaged from the ratchet wheel.

REFERENCES:
patent: 6282993 (2001-09-01), Forman et al.
patent: 6691594 (2004-02-01), Chen
patent: 6789449 (2004-09-01), Liu
patent: 6886428 (2005-05-01), Hsien
patent: 6981434 (2006-01-01), Chen

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