Patents by Inventor Charles Harrigan

Charles Harrigan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 7148419
    Abstract: A receptacle that is internally hard wired. The body of the receptacle is sealed, except for three outlets, through which pass precut “pigtail” wires. One wire is the “hot” wire, one is the “neutral” and one is the ground. To install this receptacle, an electrician has to remove the end cover from the pigtails and then simply connect them to the circuit wires in the box using common wire connectors such as WIRE NUTS. There is no need to tighten screws or to wrap the receptacle body with tape. The unit is sealed and completely protected. The electrician simply has to push the wires into the box and secure the receptacle with the mounting screws. For circuits that are daisy chained, the electrician simply connects all of the wires together (i.e., al “hot” wires together with one connector, all “neutrals” with another connector, and so on.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: December 12, 2006
    Inventor: Charles Harrigan