Patents by Inventor Donald Edmond Porterfield

Donald Edmond Porterfield 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).

  • Full support heating element apparatus
    Patent number: 9504097
    Abstract: An electric heater apparatus for heating air is disclosed, comprising a heater coil assembly including a coil support comprising a panel around which lies a coil of an electrical resistance element from approximately one end of the panel to approximately an opposite end, the coil of the electrical resistance element comprising a pass of spaced apart loops, the coil support configured to support the spaced apart loops.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: November 22, 2016
    Assignee: BACKER EHP INC.
    Inventors: Lucas Lee Fowler, Donald Edmond Porterfield, Rickey James Schexnayder
  • FULL SUPPORT HEATING ELEMENT APPARATUS
    Publication number: 20140231412
    Abstract: An electric heater apparatus for heating air is disclosed, comprising a heater coil assembly including a coil support comprising a panel around which lies a coil of an electrical resistance element from approximately one end of the panel to approximately an opposite end, the coil of the electrical resistance element comprising a pass of spaced apart loops, the coil support configured to support the spaced apart loops
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Applicant: BACKER EHP INC.
    Inventors: Lucas Lee Fowler, Donald Edmond Porterfield, Rickey James Schexnayder