Patents by Inventor Calvin L. Shoemaker

Calvin L. Shoemaker 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).

  • Publication number: 20030019652
    Abstract: A safety cover for an electrical outlet, the invention protects against electrical shock caused by contact with electricity during the insertion or removal of a plug by using a thick layer of soft, yet firm insulation covering each female electrical element of the electrical outlet. In addition, it contains plastic, movable assemblies that cover the female electrical outlet elements and that slide open when pressed, then squeezed in combination at the sides, to allow for plug insertion, and that snap shut when a plug is removed. Even further, these movable assemblies contain gripping nipples on the electrical outlet covering extensions that grip a plug by the holes that exist in the prongs of most male plugs, thus acting like a lock therewith in the event that a plug is partially removed from the electrical outlet. An adult easily disengages this locked position by squeezing the movable assemblies, and then either reinserting the plug or withdrawing it completely.
    Type: Application
    Filed: February 16, 2001
    Publication date: January 30, 2003
    Inventor: Calvin L. Shoemaker
  • Patent number: 6222125
    Abstract: A cover for an electrical outlet, the invention prohibits the insertion of improper objects into an electrical outlet by providing a layer of insulation covering each female element of the electrical outlet. Further, the invention protects against an electrical shock during the insertion or removal of a plug by providing a thick layer of insulation surrounding the outlet. In addition, the invention protects persons and children in particular against electrical shock and prohibits insertion of foreign objects into the wall outlet with movable assemblies covering the outlet. Even further, the invention inhibits unwanted heat loss, or heat exchange in buildings.
    Type: Grant
    Filed: May 23, 1998
    Date of Patent: April 24, 2001
    Inventor: Calvin L. Shoemaker