Patents by Inventor Edward I. Campbell

Edward I. Campbell 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: 5480314
    Abstract: A retractable electric plug comprising a housing having a base end adapted for receiving an electrical power cord, a peripheral integral side wall connected to the base end and extended to a location to define a hollow interior and an opening; at least two electrically conductive prongs; a coupling mechanism for coupling the prongs to the housing such that they extend therefrom and are coupleable with an electrical receptacle; and a plunging mechanism coupled to the container and having a retracted orientation for allowing the prongs to be inserted within an electrical receptacle and an extended orientation for forcibly abutting the electrical receptacle for extracting the prongs therefrom.
    Type: Grant
    Filed: September 1, 1994
    Date of Patent: January 2, 1996
    Inventor: Edward I. Campbell