Apparatus of adjustable wrench for securing movable jaw

Details Apparatus of adjustable wrench for securing movable jaw Apparatus of adjustable wrench for securing movable jaw

2005-02-08

2005-02-08

Thomas, David B. (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Slidable jaw adjustments

C081S157000

Reexamination Certificate

active

06851338

ABSTRACT:
An adjustable wrench includes a handle having a head portion provided with a fixed jaw, a transverse guiding slot and an opening communicated with the guiding slot. A movable jaw has a guiding portion received movably in the guiding slot of the handle and a rack on the guiding portion. An adjusting worm has a through hole and a helical tooth, wherein the adjusting worm is received in the opening and engages the helical tooth with the rack of the movable jaw. A supporting device is made of a flexible material and has at least a part received in the through hole of the adjusting worm to make the adjusting worm can be turned along the supporting device and can be moved along a diameter orientation thereof, and a driving device is provided on the handle for moving the adjusting worm toward the movable jaw.

REFERENCES:
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patent: 1228850 (1917-06-01), Upson
patent: 1402686 (1922-01-01), Trabold
patent: 1747360 (1930-02-01), Giles
patent: 2499644 (1950-03-01), Heyn
patent: 2569581 (1951-10-01), Ryland
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patent: 4472986 (1984-09-01), Gottlieb
patent: 5209144 (1993-05-01), Lu Guoji
patent: 5540125 (1996-07-01), Haskell
patent: 5941142 (1999-08-01), Janson
patent: 6128980 (2000-10-01), Hu

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