Patents by Inventor Robert B. Dickey

Robert B. Dickey 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).

  • Automatic air circulation control
    Patent number: 4133185
    Abstract: An automotive vehicle of the type having an air conditioner condenser in line with shutters, a radiator and a de-energizable fan is provided with a pressure-sensing switch in the condenser to measure pressure increases in the refrigerant, a radiator coolant temperature sensor and a manual fan override switch all of which are combined to energize the shutter and fan controls so that the shutters will always be open when the fan is on, both the shutters and fan will be on during high temperature coolant conditions, and the shutter and fan will always be on during high pressure refrigerant conditions regardless of the radiator coolant temperature.
    Type: Grant
    Filed: April 3, 1978
    Date of Patent: January 9, 1979
    Assignee: PACCAR Inc.
    Inventor: Robert B. Dickey