Patents by Inventor Laurence J. Artelli

Laurence J. Artelli 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).

  • Universal telescoping bulkhead door trolley assembly
    Patent number: 5329858
    Abstract: A trolley assembly for mounting a movable bulkhead door within a rail car. The trolley assembly includes a plurality of frame members that are telescopically interconnected and longitudinally adjustable with respect to each other so that the frame members can be secured together to provide a trolley apparatus that spans pairs of overhead, internal rail car tracks having different lateral spacings. The ends of the trolley assembly each include a plurality of trolley wheels for rotation along the rail car tracks, for movement of the trolley assembly longitudinally within the rail car and to carry a bulkhead door over the length of the rail car interior.
    Type: Grant
    Filed: March 15, 1993
    Date of Patent: July 19, 1994
    Assignee: Joseph T. Ryerson & Son, Inc.
    Inventors: Thomas G. Morris, Laurence J. Artelli