Patents by Inventor Gunter Krohn

Gunter Krohn 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).

  • Patent number: 5787874
    Abstract: A cooking assembly has a main burner, a pilot burner mounted in it and having a vent, a gas valve having separate main and pilot gas outlets, and a main-burner controller including a temperature sensor on the main burner, a control unit on the valve capable of varying gas output from the main gas outlet, and a capillary tube connected between the sensor and the control unit. This controller can vary gas flow from the main outlet in accordance with the temperature of the main burner as sensed by the sensor. An electrical igniter on the main burner can be energized by a switch on the valve. A pilot-burner controller connected to the switch includes a thermoelectric sensor in the pilot vent and blocks gas output from the gas outlets when insufficient heat is detected by its sensor and the switch is not closed.
    Type: Grant
    Filed: December 27, 1995
    Date of Patent: August 4, 1998
    Assignee: Cramer GmbH
    Inventors: Gunter Krohn, Wilhelm Cramer, Helmut Diekmann
  • Patent number: 4993401
    Abstract: A cooking unit has a ceramic cooking surface, a gas burner underneath the surface, a gas supply including a solenoid valve for feeding a combustible gas to the burner, and an electric igniter juxtaposed with the burner and electrically energizable to ignite the combustible gas issuing from the burner. An electricity supply is connected to the igniter and to the gas supply for electrically energizing the igniter whenever the valve is open and supplying gas to the burner. In addition an electronic controller connected to the valve and to the electric supply monitors current consumption of the igniter and closes the valve when the current consumption of the igniter indicates same is malfunctioning. The controller includes a digital circuit that is also typically operated by the user of the cooker to turn the burners on and off and control their temperatures and an analog circuit connected parallel to each other. At least one of these circuits controls opening and closing of the valve.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: February 19, 1991
    Assignee: Cramer GmbH & Co., Kommanditgesellschaft
    Inventors: Helmut Diekmann, Gunter Krohn, Wilhelm Cramer
  • Patent number: 4951646
    Abstract: A cooking unit has a housing having a front and a rear and formed at the rear with an upwardly open upright vent passage, a ceramic panel on the housing defining a plurality of cooking spots, a burner plate in the housing spaced underneath the panel and defining therewith an upper compartment opening upward into the passage, and respective gas burners supported on the plate underneath the spots. Thus the burners can heat the respective spots of the panel. An equipment plate in the housing spaced underneath the burner plate defines therewith an intermediate compartment also opening upward into the passage and defines beneath itself in the housing a lower compartment that is open to the outside at the front of the housing. Control equipment is mounted in the lower compartment of the housing along with a blower having an intake in this lower compartment and an outlet in the vent passage.
    Type: Grant
    Filed: November 28, 1989
    Date of Patent: August 28, 1990
    Assignee: Cramer GmbH & Co. Kommanditgesellschaft
    Inventors: Helmut Diekmann, Gunter Krohn, Wilhelm Cramer
  • Patent number: 4846144
    Abstract: The invention is concerned with a cooking range, especially suitable for mobile homes, which utilizes gas burners, where the exhaust gas draft is held substantially constant and the exhaust duct temperature is kept below a critical temperature by providing temperature-regulated cool air openings on the exhaust gas duct. Reliable regulation is accomplished by closures controlled by bimetallic springs positioned in a swivelable manner in the cool air openings so as to act on the closure flaps, and the closure action further improved by restoring springs exerting pressure on the outside of the closures.
    Type: Grant
    Filed: February 10, 1988
    Date of Patent: July 11, 1989
    Assignee: Cramer GmbH & Co. Kommanditgesellschaft
    Inventors: Gunter Krohn, Dietmar Kaselow