Patents by Inventor Ken R. Meldahl

Ken R. Meldahl 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).

  • Refrigerant charging system and method for using vapor-phase refrigerant
    Patent number: 8887516
    Abstract: A refrigerant charging system and method for charging a refrigeration system with a vapor-phase refrigerant includes a refrigerant source, an input line, a sensor and a pressure regulator. The input line connects the refrigerant source to the refrigeration system. One or more valves are disposed between the refrigerant source and refrigeration system to regulate the pressure of the refrigerant being introduced into the refrigeration system, and the sensor measures the pressure of the refrigerant entering the refrigeration system. A pressure regulator can also be used to regulate the flow of refrigerant. Once the pressure of the refrigerant reaches a predetermined pressure, the refrigeration system is fully charged, and the transfer of refrigerant to the refrigeration system is stopped. The system and method are used to charge the refrigeration system of, e.g., an automotive vehicle, and the refrigeration is carbon dioxide.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: November 18, 2014
    Assignee: Bosch Automotive Service Solutions LLC
    Inventors: Craig F. Govekar, Dean P. Pfefferle, Larry G. Moller, Anwar Suharno, Ken R. Meldahl
  • Refrigerant Charging System and Method for Using Vapor-Phase Refrigerant
    Publication number: 20100281890
    Abstract: A refrigerant charging system and method for charging a refrigeration system with a vapor-phase refrigerant includes a refrigerant source, an input line, a sensor and a pressure regulator. The input line connects the refrigerant source to the refrigeration system. One or more valves are disposed between the refrigerant source and refrigeration system to regulate the pressure of the refrigerant being introduced into the refrigeration system, and the sensor measures the pressure of the refrigerant entering the refrigeration system. A pressure regulator can also be used to regulate the flow of refrigerant. Once the pressure of the refrigerant reaches a predetermined pressure, the refrigeration system is fully charged, and the transfer of refrigerant to the refrigeration system is stopped. The system and method are used to charge the refrigeration system of, e.g., an automotive vehicle, and the refrigeration is carbon dioxide.
    Type: Application
    Filed: July 23, 2010
    Publication date: November 11, 2010
    Inventors: Craig F. Govekar, Dean P. Pfefferle, Larry G. Moller, Anwar Suharno, Ken R. Meldahl
  • Refrigerant charging system and method using vapor-phase refrigerant
    Patent number: 7762089
    Abstract: A refrigerant charging system and method for charging a refrigeration system with a vapor-phase refrigerant includes a refrigerant source, an input line, a sensor and a pressure regulator. The input line connects the refrigerant source to the refrigeration system. One or more valves are disposed between the refrigerant source and refrigeration system to regulate the pressure of the refrigerant being introduced into the refrigeration system, and the sensor measures the pressure of the refrigerant entering the refrigeration system. A pressure regulator can also be used to regulator the flow of refrigerant. Once the pressure of the refrigerant reaches a predetermined pressure, the refrigeration system is fully charged, and the transfer of refrigerant to the refrigeration system is stopped. The system and method are used to charge the refrigeration system of, e.g., an automotive vehicle, and the refrigeration is carbon dioxide.
    Type: Grant
    Filed: November 18, 2004
    Date of Patent: July 27, 2010
    Assignee: SPX Corporation
    Inventors: Craig F. Govekar, Dean P. Pfefferle, Larry G. Moller, Anwar Suharno, Ken R. Meldahl