Patents by Inventor Norman W. May

Norman W. May 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).

  • Train motion detection apparatus
    Patent number: 5006847
    Abstract: An apparatus and method is provided for determining when a train operating in a transit system is not moving along a provided travel path in accordance with the sensed actual occupancy time of a track signal block by that train in relation to a desired occupancy time in that track signal block by that train.
    Type: Grant
    Filed: April 5, 1988
    Date of Patent: April 9, 1991
    Assignee: AEG Westinghouse Transportation Systems, Inc.
    Inventors: Donald L. Rush, Norman W. May
  • Vehicle speed control apparatus and method
    Patent number: 4625279
    Abstract: A passenger vehicle speed control apparatus and method are operative with a track providing an input speed command having ONEs and ZEROs information components. At least two programmed microprocessors operate with the vehicle and redundantly decode the ONEs and ZEROs input speed command signal components through operation of a fixed frequency filter for each of a plurality of frequency pairs and a variable frequency filter tuned to the frequency of the fixed filter having the highest amplitude signal component for determining a speed command signal to control the movement speed of the vehicle.
    Type: Grant
    Filed: May 11, 1984
    Date of Patent: November 25, 1986
    Assignee: Westinghouse Electric Corp.
    Inventors: Pierre A. Zuber, Norman W. May, Robert J. DiSilvestro, Richard S. Rhoton