Patents by Inventor John R. Hammar

John R. Hammar 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).

  • Gas burner lighting device for an absorption refrigerating apparatus
    Patent number: 4129408
    Abstract: A device associated with a gas burner of an absorption refrigerating apparatus that ensures the lighting of the gas burner without the requirements of special knowledge and ability. The device includes a burner housing in a sealed system having a part that is movable against the action of a spring in order to establish communication between the normally closed combustion system and the atmosphere.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: December 12, 1978
    Assignee: Aktiebolaget Electrolux
    Inventor: John R. Hammar