Patents by Inventor Donald G. Porter

Donald G. Porter 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).

  • Fan accessory for heater
    Patent number: 4390005
    Abstract: A fan accessory for recovering heated air generated by a heater in which ambient and heated air are induced to enter inlets into a housing, are blended within the housing, and are directed from the housing into an area to be heated.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: June 28, 1983
    Inventor: Donald G. Porter
  • Fan accessory for heater
    Patent number: 4379446
    Abstract: A fan accessory for recovering heated air generated by a heater in which ambient and heated air are passed through a housing in separate passageways and wherein the ambient air flowing through its passageway provides an aspirating effect on the heated air to increase the flow of heated air through its passageway and out of the housing and to facilitate blending of the ambient and heated air outside the housing.
    Type: Grant
    Filed: July 21, 1982
    Date of Patent: April 12, 1983
    Inventor: Donald G. Porter
  • Housing for fan accessory for heater
    Patent number: D276842
    Type: Grant
    Filed: January 8, 1982
    Date of Patent: December 18, 1984
    Inventor: Donald G. Porter