Patents by Inventor Gary M. Durkin

Gary M. Durkin 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).

  • Image-forming griddle
    Patent number: 5131320
    Abstract: A cooking utensil with a generally platelike structure and a recessed or raised image respectively defined in or above the griddle surface for providing an image at the surface of a fried foodstuff.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: July 21, 1992
    Assignee: Little Factories, Inc.
    Inventors: Michael E. Jensen, Lester E. Langeland, Gary M. Durkin
  • High efficiency furnace
    Patent number: 4333524
    Abstract: A heat exchanger and process having multiple fluidized beds for heat exchange between two gas streams of different temperatures. The apparatus and process provides a compact high efficiency warm air furnace especially adapted for energy conservation for the heating of modern highly insulated residential buildings by gas fired furnaces of relatively low rated gas input.
    Type: Grant
    Filed: February 9, 1981
    Date of Patent: June 8, 1982
    Assignee: Southern California Gas Company
    Inventors: Robert H. Elkins, Gary M. Durkin, Robert A. Macriss
  • High efficiency furnace
    Patent number: 4249594
    Abstract: A heat exchanger and process having multiple fluidized beds for heat exchange between two gas streams of different temperatures. The apparatus and process provides a compact high efficiency warm air furnace especially adapted for energy conservation for the heating of modern highly insulated residential buildings by gas fired furnaces of relatively low rated gas input.
    Type: Grant
    Filed: February 28, 1979
    Date of Patent: February 10, 1981
    Assignee: Southern California Gas Company
    Inventors: Robert H. Elkins, Gary M. Durkin, Robert A. Macriss