Universal electric socket

  • US 6,010,347 A
  • Filed: 10/02/1998
  • Issued: 01/04/2000
  • Est. Priority Date: 10/02/1998
  • Status: Expired due to Term
First Claim
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1. A universal electric socket comprising:

  • an electrically insulative bottom shell, said bottom shell comprising two longitudinal partition walls arranged in parallel, a middle chamber defined between said partition walls, two symmetrical side chambers separated by said partition walls at two opposite sides of said middle chamber, a downwardly protruded first protruding portion disposed below said middle chamber, and two downwardly protruded second protruding portions respectively disposed below said side chambers, said first protruding portion and said second protruding portions each having a wire hole extended to the outside of said bottom shell;

    an electrically insulative cover shell covered on said bottom shell, said cover shell comprising a set of grounding prong insertion holes longitudinally arranged on the middle for receiving the grounding prong of one of a set of electric plugs of different specifications, and a set of blade insertion holes symmetrically disposed at two opposite sides of said grounding prong insertion holes for receiving the blades of one of a set of electric plugs of different specifications;

    a first metal terminal block and two second metal terminal blocks respectively mounted in the first protruding portion and second protruding portions of said bottom shell, said first metal terminal block and second metal terminal blocks each having a wire hole for receiving the grounding wire, neutral wire or hot wire of an electric wire, a screw bole extended from said wire hole to the outside, and a tightening up screw threaded into said screw hole for holding down the grounding wire, hot wire or neutral wire of an electric wire in position;

    a grounding metal plate mounted in the middle chamber of said bottom shell and connected to said first metal block, said grounding metal plate having a plurality of grounding terminal receiving portions for receiving the grounding prong of one of a set of electric plugs of different specifications; and

    two blade contact metal plates respectively mounted in the side chambers of said bottom shell and connected to said second metal blocks, said blade contact metal plates each having a plurality of blade receiving portions for receiving the blades of one of a set of electric plugs of different specifications.

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