Patents by Inventor Virgil K. McCormick

Virgil K. McCormick 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).

  • Heating and cooling thermostat with changeover switching operated upon control point adjustment
    Patent number: 4177860
    Abstract: A thermostat adapted for controlling heating and cooling apparatuses has a temperature control point adjustment means connected to a changeover switch means whereby upon the adjustment of the temperature control point adjustment means in a first range to select a cooling control point, the changeover switch means only connects the thermostat to the cooling apparatus and when the temperature control point adjustment means is in the heating range, the changeover switch means only connects the thermostat to the heating apparatus. The limited range of temperature selection in the first and second range is an energy conservation feature of the thermostat.
    Type: Grant
    Filed: February 15, 1978
    Date of Patent: December 11, 1979
    Assignee: Honeywell Inc.
    Inventors: Vern C. Johnson, Virgil K. McCormick, John M. Whitney