Work holders – Relatively movable jaws – Three coacting work grippers
Patent
1996-10-15
1999-03-02
Watson, Robert C.
Work holders
Relatively movable jaws
Three coacting work grippers
269238, 269902, 269275, 269138, B25B 100
Patent
active
058760261
ABSTRACT:
A pair of clamp pliers comprises an upper clip plate, a lower clip plate, a torsion spring disposed between the upper clip plate and the lower clip plate, a pivot pin passing through the torsion spring to fasten the upper clip plate and the lower clip plate together, a first recess hole formed on a front portion of the upper clip plate to receive a first compression spring and an upper mount, and a second recess hole formed on a front portion of the lower clip plate to receive a second compression spring and a lower mount.
REFERENCES:
patent: 2501238 (1950-03-01), Sarsgard et al.
patent: 3061357 (1962-10-01), Wright
patent: 3512794 (1970-05-01), Lohman
patent: 3779108 (1973-12-01), Reiter
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