Patents by Inventor Herbert S. Falk

Herbert S. Falk 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).

  • Microprocessor based control system and method providing better performance and better operation of a shipping container refrigeration system
    Patent number: 4663725
    Abstract: A microprocessor based system monitors and controls a transport refrigeration system having a two speed compressor coupled to a condenser and an evaporator and further having two speed condenser and evaporator fans, a refrigerant modulating valve, and heater means to cool or heat a served space. A keypad is provided for operator entry of the temperature setpoint and for display selections. Return air and discharge air temperature sensors provide signals to the microprocessor for temperature control. The microprocessor is programmed to sequence or control the compressor, the fans, the modulating valve and the heater means for temperature control in accordance with one of four stored algorithms. One of the temperature sensors is used for control, and if it is detected to have failed automatic switchover is made to use of the other temperature sensor for temperature control.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: May 5, 1987
    Assignee: Thermo King Corporation
    Inventors: Gregory R. Truckenbrod, David A. Christiansen, Herbert S. Falk, Richard A. Johnson, Robert G. Colclaser, III