Patents by Inventor Frank W. Shirey

Frank W. Shirey 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).

  • Parking brake device
    Patent number: 4215767
    Abstract: A combined fluid pressure operable running and parking vehicle brake device including an application piston responsive to fluid pressure for exerting a brake-applying force on a vehicle wheel through a brake shoe for effecting either a service or emergency application, a locking piston responsive to fluid pressure independently of the application piston, for locking the brake device in an application disposition when the vehicle is parked, and compressible springs placed under compression by actuation of the application piston for storing a compressive force available for providing the brake-applying force in the event of failure of fluid pressure when the vehicle is parked.
    Type: Grant
    Filed: August 10, 1978
    Date of Patent: August 5, 1980
    Assignee: Westinghouse Air Brake Company
    Inventor: Frank W. Shirey
  • Air compressor lay-over control circuit
    Patent number: 4083608
    Abstract: A control circuit for reducing the output cycle of a compressed air system of a rapid transit car during "lay-over" periods, when only a minimum of compressed air for a parking brake, for example, is needed by the car, by activating a secondary governor set for a low pressure operating range and connected in series with a primary governor, one or the other of the governors being activated by the control circuit responsively to control signals denoting the state of compressed air requirement of the car.
    Type: Grant
    Filed: October 21, 1976
    Date of Patent: April 11, 1978
    Assignee: Westinghouse Air Brake Company
    Inventor: Frank W. Shirey
  • Manually, pneumatically, or electrically operable drain valve device
    Patent number: 4043353
    Abstract: An automatic drain valve device alternatively adaptable for use in compressor systems using either electrical or pneumatic controls for cutting out and cutting in the compressor, and being operable to provide a drain operation twice during each cycle of compressor operation, that is, once when the compressor is cut out and again when the compressor is cut in. A manually operable lever on the valve devices provides for manual operation of the drain valve device at will and independently of the pneumatic and electrical controls.
    Type: Grant
    Filed: August 2, 1976
    Date of Patent: August 23, 1977
    Assignee: Westinghouse Air Brake Company
    Inventor: Frank W. Shirey
  • Air purifier system
    Patent number: 3937622
    Abstract: This invention relates to apparatus for periodically automatically purging the contaminants from a filter unit of a compressed air system to reactivate the filtering medium in the filter unit during the time that an air compressor for supplying air under pressure to the system is operating unloaded or is stopped.
    Type: Grant
    Filed: September 17, 1973
    Date of Patent: February 10, 1976
    Assignee: Westinghouse Air Brake Company
    Inventors: William J. Hewitt, Frank W. Shirey, Mortimer D. Wilson