Tools – Wrench – screwdriver – or driver therefor – Handle or shank
Reexamination Certificate
2006-07-04
2006-07-04
Thomas, David B. (Department: 3723)
Tools
Wrench, screwdriver, or driver therefor
Handle or shank
C081S180100
Reexamination Certificate
active
07069823
ABSTRACT:
An auxilary handle device for use with conventional handheld screwdrivers for applying additional torque and reducing muscle strain. The device includes a handle portion designed for being grasped by a human hand, and a coupling portion. The coupling portion selectively receives a handle of a conventional screwdriver. The coupling portion is operationally coupled to the handle portion such that rotation of the handle portion in a first direction imparts rotation in the first direction to the coupling portion and to the conventional screwdriver in turn. The coupling portion further comprises a cylindrical perimeter wall forming a cavity portion. The cavity portion slideably receives a portion of the handle of the conventional screwdriver. The coupling portion may further include a retaining means. The retaining means selectively secures the portion of the handle of the conventional screwdriver to the coupling portion.
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