Patents by Inventor Dallas H. Warnke

Dallas H. Warnke 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).

  • Closed loop ground source pressurized system for a heat pump
    Patent number: 5244037
    Abstract: A closed loop, pressurized system for a ground source heat pump and a pressure/liquid source module therefore. The pressure/liquid source module has a liquid tank having a predetermined liquid level and an inlet pipe extending downwardly within the tank from adjacent the top of the tank to a distal end which is below the liquid level. The inlet pipe is adapted to be connected to the loop of the closed loop, pressurized system of the heat pump. The liquid tank has an outlet adjacent the bottom of the tank, the outlet being connected to the heat pump through a check valve and a liquid pump. The valve is between the tank and the pump.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: September 14, 1993
    Inventor: Dallas H. Warnke