Adjustable wrench

Details Adjustable wrench Adjustable wrench

2007-01-02

2007-01-02

Wilson, Lee D. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Sliding jaw, cam-closing

C081S127000, C081S129000, C081S145000

Reexamination Certificate

active

11075800

ABSTRACT:
The adjustable wrench has two wrench elements each having a jaw portion and a body portion, each body portion having angled tongues and grooves, slideably mounted opposite one another with the jaw portions opposing each other. Between the two body portions is an actuator having two sides. Each side has angled tongues and grooves corresponding to and slideably engaging the angled tongues and grooves of each of the body portions. The actuator moves along a longitudinal axis of the handle thereby urging the wrench elements and jaws towards and away from one another depending on the direction of movement of the actuator, by interaction of the inclined grooves, acting as wedges using the inclined plane principle.

REFERENCES:
patent: 3817128 (1974-06-01), Evans
patent: 4151763 (1979-05-01), Colvin
patent: 4325275 (1982-04-01), Colvin
patent: 5152198 (1992-10-01), Schmitz, Jr.
patent: 5239898 (1993-08-01), Douglas
patent: 5331868 (1994-07-01), Elmore
patent: 5682802 (1997-11-01), Mazzone
patent: 5809852 (1998-09-01), Haskell
patent: 6076434 (2000-06-01), Boukis
patent: 6223631 (2001-05-01), Osa
patent: 6931969 (2005-08-01), Hsien
patent: 6973857 (2005-12-01), Anderson
patent: 1240181 (1988-08-01), None
patent: 2196888 (1988-05-01), None

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