Patents Assigned to Railroad Dynamics, Inc.
  • Freight car truck assembly
    Patent number: 4244298
    Abstract: Wedges of novel design are interposed between the side frames and bolster of a three-piece freight car truck assembly in an effort to provide an assembly having greater high speed stability.
    Type: Grant
    Filed: April 11, 1979
    Date of Patent: January 13, 1981
    Assignee: Railroad Dynamics, Inc.
    Inventors: V. Terrey Hawthorne, Stuart A. Schwam