Patents by Inventor Robert V. Zeno

Robert V. Zeno 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).

  • Pressure responsive safety control for refrigerant compressor
    Patent number: 4463573
    Abstract: A compressor protector system is an air conditioning system that includes a compressor driven by an engine through an electromagnetic clutch. If the refrigerant charge is below the level necessary for proper compressor cooling and lubrication a pressure or temperature responsive switch cycles at an excessive rate. A digital counter adds the number of cycles occuring over a given time, compares the rate of switch pulses to a predetermined maximum and operates to disengage the clutch and signal the vehicle operator that corrective action to restore the refrigerant charge is required.
    Type: Grant
    Filed: July 30, 1982
    Date of Patent: August 7, 1984
    Assignee: Ford Motor Company
    Inventors: Robert V. Zeno, George A. Lutz, Jayendra J. Amin