Retractable open end wrench

Details Retractable open end wrench Retractable open end wrench

2006-04-18

2006-04-18

Meislin, Debra S (Department: 3723)

Tools

Wrench, screwdriver, or driver therefor

Sliding jaw face

C081S129000

Reexamination Certificate

active

07028590

ABSTRACT:
A retractable open-end wrench has a handle defining a web at one end thereof. A stationary jaw projects from a first side of the web, and a first channel is formed at a second side of the web opposite the first side, the first channel being defined by a first arc. A moveable jaw is received by the first channel and moves linearly through the first channel, wherein the jaws form an open end therebetween. A second channel formed in the movable jaw is defined by a second arc, wherein a length of the first arc is greater than a length of the second arc. Moreover, a first radius of the first arc is smaller than a second radius of the second arc, and the first channel and the second channel form a receiving hole.

REFERENCES:
patent: 659293 (1900-10-01), Downey
patent: 892503 (1908-07-01), Corbin
patent: 1174167 (1916-03-01), King
patent: 1483110 (1924-02-01), Pearce et al.
patent: 3280669 (1966-10-01), Weaver
patent: 4437364 (1984-03-01), Martinmaas
patent: 6089129 (2000-07-01), Huang
patent: 6945143 (2005-09-01), Kim

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