Tools – Tool jaw – Jaw-actuating means
Patent
1995-01-05
1996-07-16
Kisliuk, Bruce M.
Tools
Tool jaw
Jaw-actuating means
81165, B25B 712
Patent
active
055356508
ABSTRACT:
The invention is an adjustable plier wrench hand tool, combining the useful functions of standard adjustable wrenches with standard vise grip pliers. The invention has a main body, a plier handle having a plier handle head, and an upper and lower jaw. The lower jaw is slidably mounted to the main body and capable of moving towards and away from the upper jaw. A thumbscrew is threaded and mated to corresponding teeth on a rack integrally formed with the lower jaw, such that by rotating the thumbscrew, the lower jaw moves towards and away from the upper jaw. The thumbscrew has a bore through which a stub shaft, extends from which a cam, protrudes. By bringing the plier handle into a closed position, an apex of the plier handle head pushes against a cam surface of the cam, forcing the cam, the thumbscrew, and hence the lower jaw upwards, in effect causing a compression between the lower jaw and the upper jaw, so as to firmly grip an object typically a nut.
REFERENCES:
patent: 1305628 (1919-06-01), Statham
patent: 1490903 (1924-04-01), Anderson
patent: 3190154 (1965-06-01), Chapman
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patent: 3664214 (1972-05-01), Feldman
patent: 4375174 (1983-03-01), Shanley, Jr.
patent: 4477937 (1984-10-01), Costello
patent: 5150488 (1992-09-01), Yuan et al.
"Wrench Meet Vise", Popular Mechanics, Nov. 1994, p. 26 & Applicant's Comments.
Danganan Joni B.
Kisliuk Bruce M.
Miller Richard L.
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