Power pliers for twisting wires

Wireworking – Joining wire – Implements

Reexamination Certificate

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Details

C140S149000

Reexamination Certificate

active

07946314

ABSTRACT:
Power driven pliers are capable of twisting the ends of a plurality of electrical wires together to make an electrical and mechanical connection therebetween. The pliers include first and second jaws and first and second handles. The jaws and handles are pivotally connected to each other at a pivot point such that movement of said handles toward each other moves said jaws toward each other. A rotatable chuck is carried by one of the jaws and has a central opening adapted to have a plurality of wire ends insertable therein. A portion of the chuck is moveable between an inoperable position wherein the wire ends can be inserted into the opening and an operative position wherein the chuck tightly grasps the wire ends. An electrical motor carried by the pliers and connected to the chuck is capable of rotating the chuck. An electrical switch is carried by the pliers and is located so as to be pressed by a user's thumb while holding the pliers. When the switch is activated, the electrical motor rotates the chuck to twist the wire ends together.

REFERENCES:
patent: 2181746 (1939-11-01), Siebrandt
patent: 2394807 (1946-02-01), Robinson
patent: 2990613 (1961-07-01), Keane et al.
patent: 3056967 (1962-10-01), Murray
patent: 3470772 (1969-10-01), Faust, Sr.
patent: 3888003 (1975-06-01), Brown
patent: 4388953 (1983-06-01), Hara et al.
patent: 5033195 (1991-07-01), Appelkvist et al.
patent: 5758729 (1998-06-01), Undin
patent: 5887631 (1999-03-01), Eaton
patent: 6139228 (2000-10-01), Longo
patent: 2 211 448 (1989-07-01), None

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