Patents by Inventor Jayant K. Kapadia

Jayant K. Kapadia 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).

  • Transit vehicle door control apparatus
    Patent number: 4679508
    Abstract: A transit vehicle having a door includes a zero speed condition detection apparatus provided to logically supply a zero condition output signal for each of a plurality of axles when both of the tachometers for each of those axles are under a predetermined zero speed condition. When two or more zero condition output signals are so supplied, a failsafe driver is energized to operate a control relay for determining the operation of the door.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: July 14, 1987
    Assignee: Westinghouse Electric Corp.
    Inventors: Mark T. Fruehan, Jeffrey A. Fennig, Jayant K. Kapadia
  • Fail-safe pulse providing apparatus
    Patent number: 4278900
    Abstract: There is disclosed improved time slot scanner control apparatus, including a fail-safe control pulse former apparatus provided for each of a desired plurality of information time slots to sequence the data information transfer in relation to the respective track circuits operative with a transit vehicle. An information timing track is provided for sequencing this data information transfer and to reset the apparatus after each provided sequence of time slot control pulses.
    Type: Grant
    Filed: February 15, 1979
    Date of Patent: July 14, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Jayant K. Kapadia, Thomas C. Matty
  • Door control for train vehicles
    Patent number: 4269377
    Abstract: A passenger vehicle door control apparatus and method, including programmed computer control apparatus responsive to open door code signals from the wayside in addition to a zero signal to indicate that the train of vehicles has stopped within a passenger station are operative to open the doors of all vehicles at the correct time on the correct side of the train when the train is within the station and traveling at less than a predetermined zero speed.
    Type: Grant
    Filed: June 28, 1978
    Date of Patent: May 26, 1981
    Assignee: Westinghouse Electric Corp.
    Inventors: Donald L. Rush, Jayant K. Kapadia
  • Failsafe logic function apparatus
    Patent number: 4179629
    Abstract: An improved failsafe logic function apparatus is disclosed which includes an input signal section and an output signal section, with a middle gating network section isolated from each of the input signal section and the output signal section. An external control signal determines the logic function operation of the apparatus.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: December 18, 1979
    Assignee: Westinghouse Electric Corp.
    Inventors: Arun P. Sahasrabudhe, Jayant K. Kapadia