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Anti-theft device for appliances with electrical AC power cords

  • US 4,603,931 A
  • Filed: 12/14/1984
  • Issued: 08/05/1986
  • Est. Priority Date: 12/14/1984
  • Status: Expired due to Fees
First Claim
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1. Anti-theft device for securing a power plug against removal from an electrical power outlet comprising:

  • an enclosure of electrically conductive material having a face plate wall apertured to allow insertion of at least one power plug into an electrical power outlet covered by said face plate wall, a plurality of side walls, and an open side;

    means for securing said face plate wall over an electrical power outlet;

    a cover for closing said open side;

    means for fastening said cover to said enlosure; and

    one or more openings defined between said cover and at least one of the side walls, each said opening being dimensioned to allow passage of an electrical power cord but to prevent passage of a power plug attached to the cord within the enclosure, each said opening being defined by unprotected relatively sharp edges so as to cut into the electrical insulation of a power cord passing through the opening upon attempted forced removal of the power plug from the enlosure and thereby create a short circuit to deter theft.

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