Screwdriver

Details Screwdriver Screwdriver

2005-06-07

2005-06-07

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

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S438000

Reexamination Certificate

active

06901826

ABSTRACT:
A screwdriver includes a handle having a polygonal hole defined in a first end thereof for allowing an operate shaft extending into the handle. A locking device is mounted in the handle for selective holding the operate shaft in place. A controlling device is mounted to the handle and corresponds to the locking device for forward moving the slider and making the locking device disengaged from the operate shaft for adjusting the total length of the screwdriver.

REFERENCES:
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patent: 6622597 (2003-09-01), Chen
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patent: 6722667 (2004-04-01), Cantlon
patent: 20040020331 (2004-02-01), Lee
patent: 295843 (1988-12-01), None

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