Patent ID: 7001199

Claim:
An electrical apparatus, comprising: a plug, comprising a plug body, the plug body comprising an interior and an exterior having exterior dimensions and an open front and a back portion having a plunger hole, the interior comprising a cavity, the cavity having a first generally annular socket channel defined by the portion of the cavity extending from the open front to a spring base and having a conductive washer recess and a hammer stop, the spring base extending into the channel, a generally annular spring housing defined by the portion of the cavity between the spring base and the plunger hole, the plug body comprising a first ball-bearing hole that extends from an interior portion of the socket channel to the exterior, a first wire channel extending from the conductive washer recess to a wire entry, and a second wire channel extending from the spring housing to the wire entry, a conductive washer secured in the conductive washer recess, a first wire extending through the first wire channel from the conductive washer to the wire entry, and a second wire extending through the second wire channel from a second conductive washer located in the spring housing and proximate to the plunger hole and to the wire entry; a plunger having a first conductive portion that substantially conforms to the interior portion of the spring housing and a second non-conductive portion that substantially conforms to the plunger hole, the second portion extending through the plunger hole such that the washer is electrically insulated from the second portion; a hammer, comprising a base portion that substantially conforms to the spring housing, a head having a forehead that substantially conforms to the socket channel, and a first recess for accommodating a first ball bearing, an elongated spine that couples the base portion to the head, a channel extending from the head, through the spine, and to the base portion, the channel comprising a conductor having a generally annular conductive tube portion, the hammer disposed between the plunger and the hammer stop; and a spring disposed about the elongated spine and between the base portion and the spring base.