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Safety electrical receptacle

  • US 5,256,076 A
  • Filed: 04/10/1991
  • Issued: 10/26/1993
  • Est. Priority Date: 04/10/1991
  • Status: Expired due to Fees
First Claim
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1. A safety electrical system having means for connecting incoming wires from a power source to outgoing wires to a power user comprising:

  • (a) an outlet receptacle having terminals posts to accept incoming wires, said receptacle having a plurality of slots, each having electrical contact means to receive the blades of an electrical plug;

    (b) said plug having a plate pierced by said blades and elongated posts on said plate and disposed adjacent each said blade;

    (c) a face plate fitted over said receptacle, said face plate having apertures to accept said receptacle and said posts;

    (d) a plurality of normally open switches carried by said face plate connected in series between each of said incoming wires and said terminal posts, the said switches each having an operating arm arranged to be engaged and moved to a closed position by said elongated posts, whereby the electrical connection between the incoming and outgoing wires is complete only when the said plug and said plate are in their fully received positions.

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