Kearney-National Inc.

Robert D Ball

William H Russell

An electric circuit interrupter arranged to interrupt overload currents and having a pair of relatively movable normally closed disconnect contacts is associated with an electric circuit interrupter arranged to interrupt load currents and having a pair of relatively movable normally closed contacts forming a parallel circuit to the disconnect contacts only during opening of said disconnect contacts so as to prevent arcing at said disconnect contacts during opening thereof.

Electric circuit interrupting apparatus

An electric terminal bushing having a hollow tubular contact engageable with the contact pin of an electric elbow type connector is arranged so as substantially to reduce the arcing time during a switch closing operation and includes means for slidably mounting the hollow tubular contact within the bushing between normal and interim positions, and spring means arranged to move said contact toward its normal position following movement of said contact toward its interim position during a circuit closing operation.

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Tucker, GA, United States of America

Robert D Ball