Ratchet screwdriver

Details Ratchet screwdriver Ratchet screwdriver

2006-09-19

2006-09-19

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle clutched to head

C192S043100

Reexamination Certificate

active

07107877

ABSTRACT:
A ratchet screwdriver includes a main rod, a driven shaft, a ratchet mechanism, a socket connector, a control member, and a handle. Thus, the pawl member of the ratchet mechanism is pivoted to engage the ratchet teeth of the socket connector by rotation of the rotation wheel of the control member, so that the ratchet screwdriver is operated easily and conveniently, thereby facilitating a user operating the ratchet screwdriver to drive a workpiece.

REFERENCES:
patent: 2292228 (1942-08-01), Krieger
patent: 4102375 (1978-07-01), Rossini
patent: 6070501 (2000-06-01), Braun et al.
patent: 6789447 (2004-09-01), Zinck
patent: 2006/0011018 (2006-01-01), Lee

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