Patents by Inventor Stephen C. Pederson

Stephen C. Pederson 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).

  • Control unit and method for two-stage reciprocating compressor
    Patent number: 6401469
    Abstract: A two stage compressor which provides a high capacity stage and a low capacity stage is used with multiple evaporator condensing units. A control system for controlling the compressor receives inputs from two indoor locations via thermostats. The compressor runs in the low capacity stage when cooling is called for from only one of the thermostats, but runs in the high capacity stage when cooling is called for from both of the thermostats. The control system controls the transition of the compressor from the low capacity stage to the high capacity stage, and from the high capacity stage to the low capacity stage.
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: June 11, 2002
    Assignee: Carrier Corporation
    Inventors: Richard D. Dennis, Stephen C. Pederson