Patent ID: 6965088

Claim:
A portable circuit interrupting apparatus for use in association with a circuit isolating device comprising: a main housing having a main housing body including a main housing body outer surface and a longitudinal axis; a sleeve including a main sleeve body having a main sleeve body outer surface and coaxially mounted within the main housing so as to be slidable between an extended position and a retracted position, a spring assembly for biasing the main sleeve body from between the extended position toward the retracted position, and a reset plunger opening positioned in a medial portion of the main sleeve body; a shunting circuit assembly having a ring engaging terminal adapted to electrically connect to a ring-like conducting part of a circuit isolating device and a hook engaging terminal adapted to electrically connect to a hook-like conducting part of a circuit isolating device, a shunting circuit segment connected between the ring engaging terminal and the hook engaging terminal and positioned within the housing and sleeve to interrupt an electrical connection between the ring-like conducting part and hook-like conducting part responsive to movement of the sleeve from the retracted position to the extended position; a reset plunger assembly including a reset plunger and connected to a medial portion of the main housing body, adapted to extend at least portions of the reset plunger through the reset plunger opening in the medial portion of the main sleeve body when in a non-reset and biased inward lock position to releasably lock the sleeve in the extended position so as to obtain and maintain an electrical clearance between the ring engaging terminal and the hook engaging terminal when the ring engaging terminal end the hook engaging terminal engage a circuit isolating device and when the main sleeve body is positioned in the extended position, and adapted to reset outwardly responsive to outwardly biased pressure by a user and outward pressure from the main sleeve outer surface when the main sleeve body is in an at least partially retracted position; and an operation counter assembly positioned at the medial portion of the main housing body and including an operation counter connected to the reset plunger assembly and positioned to count a number of circuit interrupting operations of the circuit interrupting apparatus, responsive to movement of the reset plunger.