Patents by Inventor Gary J. Cameron

Gary J. Cameron 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).

  • Hot water tank construction, electrically operated heating element construction therefor and methods of making the same
    Patent number: 5305419
    Abstract: A hot water tank construction, an electrically operated heating element construction therefor and methods of making the same are provided, the electrically operated heating element construction comprising a heating element and an externally threaded fitting for threading into an internally threaded opening in a wall of the tank, the heating element comprising an outer metallic tubular sheath and an inner conductive heater wire insulated from the sheath, the fitting comprising polymeric material, the heating element construction comprising an electrical resistance electrically interconnected to the sheath and being adapted to electrically interconnect the sheath to the wall of the tank, the polymeric material comprising an electrically conductive polymeric material that also comprises the resistance of the heating element construction.
    Type: Grant
    Filed: September 14, 1992
    Date of Patent: April 19, 1994
    Assignee: Robertshaw Controls Company
    Inventor: Gary J. Cameron
  • Hot water tank construction, electrically operated heating element construction therefor and methods of making the same
    Patent number: 5159659
    Abstract: A hot water tank construction, an electrically operated heating element construction therefor and methods of making the same are provided, the electrically operated heating element construction comprising a heating element and an externally threaded fitting for threading into an internally threaded opening in a wall of the tank, the heating element comprising an outer metallic tubular sheath and an inner conductive heater wire insulated from the sheath, the fitting comprising polymeric material, the heating element construction comprising an electric resistance electrically interconnected to the sheath and being adapted to electrically interconnect the sheath to the wall of the tank, the polymeric material comprising an electrically conductive polymeric material that also comprises the resistance of the heating element construction.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: October 27, 1992
    Assignee: Robertshaw Controls Company
    Inventor: Gary J. Cameron
  • Immersion heating element with conductive polymeric fitting
    Patent number: 5109474
    Abstract: A hot water tank construction, an electrically operated heating element construction therefor and methods of making the same are provided, the electrically operated heating element construction comprising a heating element and an externally threaded fitting for threading into an internally threaded opening in a wall of the tank, the heating element comprising an outer metallic tubular sheath and an inner conductive heater wire insulated from the sheath, the fitting comprising polymeric material, the heating element construction comprising an electrical resistance electrically interconnected to the sheath and being adapted to electrically interconnect the sheath to the wall of the tank, the polymeric material comprising an electrically conductive polymeric material that also comprises the resistance of the heating element construction.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: April 28, 1992
    Assignee: Robertshaw Controls Company
    Inventor: Gary J. Cameron