Reinforcement structure for adjustable wrenches

Details Reinforcement structure for adjustable wrenches Reinforcement structure for adjustable wrenches

2005-08-16

2005-08-16

Hail, III, Joseph J. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

C081S129000, C081S170000

Reexamination Certificate

active

06928905

ABSTRACT:
An adjustable wrench includes a handle with a fixed jaw extending from a head of the wrench and a groove is defined in an end of the head and communicates with a through hole defined transversely through the head. The through hole forms a circular hole in an outer surface of the head and located beside a root portion of the fixed jaw. A movable jaw has a cylindrical rack piece which is movably inserted in the groove and the through hole. A flange is connected between the movable jaw and the rack piece. A thumb screw is rotatably engaged with a hole defined through the head and engage with the rack piece.

REFERENCES:
patent: 1133236 (1915-03-01), Peterson
patent: 2708856 (1955-05-01), Brynge
patent: 2720805 (1955-10-01), Brynge
patent: 6382056 (2002-05-01), Wu
patent: 6470773 (2002-10-01), Wu
patent: 6789451 (2004-09-01), Wu

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