Extension handle apparatus for wrenches

Details Extension handle apparatus for wrenches Extension handle apparatus for wrenches

1997-04-08

1998-11-10

Scherbel, David A.

Tools

Wrench, screwdriver, or driver therefor

Handle or shank

811772, B25B 2316

Patent

active

058327940

ABSTRACT:
An extension handle apparatus for wrenches comprising an extension bar, a fixed support bracket fixedly coupled to the extension bar, and a moveable support bracket slidably coupled to the extension bar. The moveable support bracket comprises a sliding jacket member, first and second spring retaining protrusions and a locking spring wherein the moveable support bracket is moved along the length of a portion of the extension bar for accommodating a variety of wrench lengths.

REFERENCES:
patent: D298007 (1988-10-01), Williams et al.
patent: 768501 (1904-08-01), Winkelried
patent: 905650 (1908-12-01), Clarke et al.
patent: 1209012 (1916-12-01), O'Brien
patent: 1511738 (1924-10-01), Lownsbry
patent: 2490739 (1949-12-01), Nesbitt
patent: 4104935 (1978-08-01), Stoops
patent: 4644600 (1987-02-01), Fugate
patent: 4729281 (1988-03-01), Holloway, Jr.
patent: 4738167 (1988-04-01), Ball
patent: 5033337 (1991-07-01), Thomas, III
patent: 5535649 (1996-07-01), Waggle, Jr.

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