Patents by Inventor David Renken

David Renken 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).

  • Transport temperature control system having an increased heating capacity and a method of providing the same
    Patent number: 6560978
    Abstract: A temperature control system having an increased heating performance. The system includes a compressor adapted to compress a fluid, a heat exchanger coupled to the compressor such that compressed fluid moves from the compressor to the heat exchanger, and a pressure regulating valve positioned between the compressor and the heat exchanger such that compressed fluid from the compressor moves through the valve before reaching the heat exchanger. The pressure-regulating valve is designed to stay in a closed position until the pressure of the fluid from the compressor reaches a desired value. By virtue of this design, the pressure of the fluid in increased, thus resulting in an increased in the temperature of the fluid. Upon reaching the desired pressure, the valve opens to allow the highly-pressurized fluid to flow to the heat exchanger.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: May 13, 2003
    Assignee: Thermo King Corporation
    Inventors: David Renken, Eric Kirby, Michael Schlough, John J. Shaw
  • Transport temperature control system having an increased heating capacity and a method of providing the same
    Publication number: 20020083725
    Abstract: A temperature control system having an increased heating performance. The system includes a compressor adapted to compress a fluid, a heat exchanger coupled to the compressor such that compressed fluid moves from the compressor to the heat exchanger, and a pressure regulating valve positioned between the compressor and the heat exchanger such that compressed fluid from the compressor moves through the valve before reaching the heat exchanger. The pressure-regulating valve is designed to stay in a closed position until the pressure of the fluid from the compressor reaches a desired value. By virtue of this design, the pressure of the fluid in increased, thus resulting in an increased in the temperature of the fluid. Upon reaching the desired pressure, the valve opens to allow the highly-pressurized fluid to flow to the heat exchanger.
    Type: Application
    Filed: January 29, 2002
    Publication date: July 4, 2002
    Applicant: Thermo King Corporation
    Inventors: David Renken, Eric Kirby, Michael Schlough, John J. Shaw