Patents by Inventor RUSSELL SZEWCZYK

RUSSELL SZEWCZYK 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).

  • Electronic circuit controller for railway switch machine, railway switch machine and railway switching system including same
    Patent number: 10953897
    Abstract: A railway switching machine includes a housing, a first point detector bar slidably coupled to the housing and structured to be directly coupled to a first switch point, and a second point detector bar slidably coupled to the housing and structured to be directly coupled to a second switch point.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: March 23, 2021
    Assignee: HITACHI RAIL STS USA, INC.
    Inventors: Kevin Mcquistian, Eric Mcgraw, Russell Szewczyk
  • ELECTRONIC CIRCUIT CONTROLLER FOR RAILWAY SWITCH MACHINE, RAILWAY SWITCH MACHINE AND RAILWAY SWITCHING SYSTEM INCLUDING SAME
    Publication number: 20180093682
    Abstract: A railway switching machine includes a housing, a first point detector bar slidably coupled to the housing and structured to be directly coupled to a first switch point, and a second point detector bar slidably coupled to the housing and structured to be directly coupled to a second switch point.
    Type: Application
    Filed: October 2, 2017
    Publication date: April 5, 2018
    Applicant: Ansaldo STS USA, Inc.
    Inventors: KEVIN MCQUISTIAN, ERIC MCGRAW, RUSSELL SZEWCZYK