Landis+gyr, Inc.

Wojciech Janczak

Ronald C Tate

John T Voisine

A meter cover removal detection arrangement includes a switch element, a pivoting lever arm, a meter cover and a plunger. The switch element has first and second positions, and conducts electricity between first and second contacts in only one of the first position and the second position. The pivoting lever arm has two arm positions, and is operably coupled to cause the switch element to be in the second position when the lever arm is in a second arm position. The lever arm engages a spring that biases the level arm toward the second arm position. The meter cover has an inward extending cam. The plunger has first and second plunger positions, and is operably coupled to hold the pivoting lever arm in the first arm position when the plunger is in the first plunger position. The cam engages the plunger to hold the plunger in the first plunger position when the meter cover is installed on a meter base. The cam is disengaged from the plunger when the meter cover is removed.

Cover removal switch having lever-arm

An arrangement for use in a utility meter includes an actuator element configured for linear movement. The actuator is operably coupled to receiving moving power from a prime mover, and includes a plurality of receptacles for corresponding contact arms of a switch within an electricity meter. Each receptacle is defined by an outer bar, an inner bar, and opposing stiffening elements. The outer bar is configured to engage a first surface of a contact arm element when the switch is in a first position, and the inner bar configured to engage a second surface of the contact arm element when the switch is in a second position.

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West Lafayette, IN, United States of America

Wojciech Janczak