Meter Devices Company, Inc.

Thomas J Archer

John T Shincovich

Gary C Schaffert

Timothy M Chilton

A test switch apparatus for an electrical device includes identical modules each carrying at least one switch thereon and terminals coupled to the switch and receiving electrical conductors. Complimentary interconnecting members are formed on each base and opposed barrier walls of each module for releasably interconnecting two modules in a side-by-side arrangement. Lock elements are optionally formed on each module for locking two adjacent switch modules together, preferably after the two modules are substantially joined by the interconnected members. End pieces are interconnected by interconnecting members to endmost modules. A cover is releaseably attachable to the end pieces.

Meter test switch

This invention relates to a safety cover assembly for a meter socket having a plurality of electrically-energizable contacts adapted to receive the rearwardly-projecting contact blades or terminals of various types of electrical meters including those used for measuring both commerical and residential power consumption. The socket normally has a substantial number of electrical contact elements in suitable spaced-apart alignment to receive the projecting contact terminals of various types of meters to energize one or more electrical circuits within the meter to determine both the accuracy and efficiency of the meter. The cover assembly is preferably formed of transparent plastic insulating material having high dielectric constant including an outer apertured cover plate to provide an essentially dead front to the meter socket when energized, both when a meter is mounted in and demounted from the meter socket. The components of the meter cover assembly are preferably comprised of durable transparent insulating material for visual inspection of the wiring, internal electrical contacts and connections, the socket being designed for both laboratory and field applications.

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Canton, OH, United States of America

Thomas J Archer