Leverage handle

Details Leverage handle Leverage handle

2006-07-04

2006-07-04

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

C081S176150, C081S180100

Reexamination Certificate

active

07069824

ABSTRACT:
A leverage handle tool includes a handle and a seat block. In use, a slot in the seat block is located upon a handle such as a vice handle, and the tool is pulled toward the handle end. As the tool is pulled toward the handle end the slot grips the handle due to the frusto-conical configuration thereof. The tool may then be acted upon such that the tool increase the leverage upon handle.

REFERENCES:
patent: 556151 (1896-03-01), Johnson
patent: 776761 (1904-12-01), Sampson
patent: 923420 (1909-06-01), Drake
patent: 968106 (1910-08-01), Zimmermann
patent: 1193326 (1916-08-01), Westcott
patent: 2715347 (1955-08-01), Johnson
patent: 3787948 (1974-01-01), Runge
patent: D243820 (1977-03-01), Hickman
patent: 4899999 (1990-02-01), Arnold
patent: 5669404 (1997-09-01), Guillermo
patent: 5683077 (1997-11-01), Fink et al.
patent: 5737981 (1998-04-01), Hildebrand
patent: D435765 (2001-01-01), Owens et al.
patent: 6361442 (2002-03-01), Dillenberger et al.

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