Patents by Inventor Daniel Joseph Kaplan

Daniel Joseph Kaplan 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).

  • Railcar with trackless support for radial end door
    Patent number: 6339994
    Abstract: A radial end door that includes, in addition to the conventional inner and outer rollers for supporting the door, a door mounted support on the inner portion of the door, unsupported by the railcar body when the door is open, but supported by the railcar body when the door is closed. The door mounted support preferably comprises a roller that can be added as a retrofit or upgrade to the existing door, without altering the basic configuration, geometry or operational characteristics of the door, except to improve the performance of the door. The door mounted support preferably cooperates with a floor-mounted support comprising a wear bar having a ramp portion to raise the door mounted support and increase loading on the outer roller as the door is closed.
    Type: Grant
    Filed: August 4, 2000
    Date of Patent: January 22, 2002
    Assignee: Thrall Car Manufacturing Company
    Inventors: Daniel Joseph Kaplan, Ralph Hartman Schorr, Ronny Lamar Allison, Barney Russell Willoughby, Jr.