Lightweight wrench

Tools – Wrench – screwdriver – or driver therefor – Slidable jaw adjustments

Reexamination Certificate

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Details

C081S145000, C081S129000

Reexamination Certificate

active

07131355

ABSTRACT:
A lightweight, adjustable wrench comprising of a moveable jaw with a reach that is shortened or lengthened with a strap or a cable. The loose end of the strap or cable is secured to the wrench's shank by a cam lock, or similar locking device. Since the strap or cable is the means for the wrench's jaws adjustment, a quicker and easier fit to the pipe or object to be gripped can be obtained. The wrench is more convenient to adjust, since the means for adjustment are located near the handle of the wrench as opposed to the shank end of present designs. The strap or cable adjustment also allows the wrench's shank and handle to be designed hollow and a larger diameter to reduce weight. The wrench can be made in any proportion for any sized application.

REFERENCES:
patent: 1627035 (1927-05-01), Jahn
patent: 2057899 (1936-10-01), Lucas
patent: 2713803 (1955-07-01), Schwaiger
patent: 2718166 (1955-09-01), Hollenbeck
patent: 2742809 (1956-04-01), Brynge et al.
patent: 3280667 (1966-10-01), Woodling
patent: 3964115 (1976-06-01), Platek
patent: 3996820 (1976-12-01), Tuell
patent: 4144779 (1979-03-01), Honick
patent: D271274 (1983-11-01), Tasato
patent: 6182540 (2001-02-01), Wang
patent: 6349621 (2002-02-01), Khachatoorain
patent: 6959952 (2005-11-01), Williams

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