Patents by Inventor Markvard Haurbach

Markvard Haurbach 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).

  • Self powered electric generating food heater
    Patent number: 7935882
    Abstract: A self-powered food heater. The food heater includes a burner with an electric fuel pump and an electric blower, a fire box, a water tank and electronic controls. The food heater also includes a set of thermoelectric modules compressed against a heat transfer surface of the tank. Hot exhaust leaving the burner enters the fire box. Some of the heat from the fire box passes through the thermoelectric modules generating sufficient electric power to power the fuel pump and the blower. Water in the tank is heated to its boiling temperature. Heat from the boiling water heats food also contained in the tank. In a preferred embodiment special compression frames provide substantially uniform compression, within desired ranges, of the modules between a portion of the heat transfer surface of the tank and a module cover plate.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: May 3, 2011
    Assignee: Hi-Z Technology, Inc.
    Inventors: Donald Wayne Pickard, Frank E. DiLeo, Aleksandr S. Kushch, John C. Bass, Markvard Haurbach
  • Self powered electric generating food heater
    Publication number: 20070204850
    Abstract: A self-powered food heater. The food heater includes a burner with an electric fuel pump and an electric blower, a fire box, a water tank and electronic controls. The food heater also includes a set of thermoelectric modules compressed against a heat transfer surface of the tank. Hot exhaust leaving the burner enters the fire box. Some of the heat from the fire box passes through the thermoelectric modules generating sufficient electric power to power the fuel pump and the blower. Water in the tank is heated to its boiling temperature. Heat from the boiling water heats food also contained in the tank. In a preferred embodiment special compression frames provide substantially uniform compression, within desired ranges, of the modules between a portion of the heat transfer surface of the tank and a module cover plate.
    Type: Application
    Filed: February 14, 2006
    Publication date: September 6, 2007
    Inventors: Donald Pickard, Frank DiLeo, Aleksandr Kushch, John Bass, Markvard Haurbach