Tools – Tool jaw – Antipodal jaw surfaces move apart as handles approach
Patent
1993-11-22
1995-06-13
Smith, James G.
Tools
Tool jaw
Antipodal jaw surfaces move apart as handles approach
81418, 81426, B25B 712
Patent
active
054232368
ABSTRACT:
The spreading pliers of the invention include a pair of handles, self-locking linkage which rotatably couples together the pair of handles, the self-locking linkage including a shank rotatably coupled to the ends of both handles at respective pivot points thereon, a first plier end connected to the shank and a second plier end connected to one of the handles, one of the first and second plier ends permitting the other for pass therebetween to an unspread position, the self-locking linkage rotating the first and second plier ends away from one another as the handles are squeezed together to a spread position.
REFERENCES:
patent: 2050167 (1936-08-01), Demmer
patent: 2595989 (1952-05-01), Smeltz
patent: 5062191 (1991-11-01), Carr
California Institute of Technology
Keller Michael L.
Smith James G.
Wallace Robert M.
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