Self adjusting pliers

Details Self adjusting pliers Self adjusting pliers

1997-07-25

1999-08-03

Scherbel, David A.

Tools

Tool jaw

Adjustable relationship between jaw

81385, 81342, 814265, B25B 704

Patent

active

059310677

ABSTRACT:
A pair of pliers includes a first member and a second member. The first member has a first handle portion, a first jaw portion, and a convex bearing surface portion disposed between the first handle portion and the first jaw portion. The second member has a second handle portion, a second jaw portion and a concave bearing surface portion disposed between the second handle portion and the second jaw portion. The concave bearing surface portion engaging the convex bearing surface portion of the first member to provide a fulcrum point between the first member and the second member. The fulcrum point shifts with relative spacial positioning of the first jaw portion and the second jaw portion.

REFERENCES:
patent: 120144 (1871-10-01), Zeiler
patent: 685215 (1901-10-01), Magui
patent: 1337986 (1920-04-01), Allan
patent: 1805884 (1931-05-01), Pawsat
patent: 2716365 (1955-08-01), Keeley, Jr.
patent: 3142212 (1964-07-01), Grape
patent: 4662252 (1987-05-01), Warheit
patent: 4726265 (1988-02-01), Reich

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