Importance

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Abstract

A device for suppressing transient voltage surges is mountable at the end of a branch circuit in place of a conventional duplex receptacle. When so mounted, the device in external configuration duplicates the duplex receptacle exactly, except for omission of one of the two sets of slots normally provided for receiving the prongs of attachment plugs. The device, when mounted in a conventional outlet box, receives a conventional duplex receptacle wall plate, and being of the external configuration matching that of a conventional duplex receptacle, provides no projection beyond the wall plate greater than the projection defined by the raised portions of an ordinary duplex receptacle as heretofore known. Use of completely conventional duplex receptacle components, modified either not at all or only slightly, is permitted. The cover of the device is modified only to the extent of omitting the prong receiving slots at one end, and providing an internal recess for engaging the suppressor element and holding the same in proper position within the body of the device. The body of the device is modified only to the extent of providing a continuous, transverse suppressor element compartment at one end instead of the separate compartments normally provided of the receptacle contacts. Receptacle contact strips are utilized, modified only in that at one end thereof, two of the contact leaves normally provided are omitted, and the remaining leaf is adapted to constitute a wire lead terminal to which is connectable the ends of the suppressor element.

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First Claim