Patents by Inventor David Stull

David Stull 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).

  • Method of Manufacturing a Multiple Axle Railcar Having a Span Bolster
    Publication number: 20180194374
    Abstract: A method for making a railcar having a span bolster is disclosed. The method involves fabricating and joining the components of the span bolster in a manner such that a camber is built into span bolster. A camber is cut into longitudinal supports that span the length of the bolster. A jig is used to shape top and bottom plates prior to attaching the plates to the longitudinal supports, thus forming the bolster. Truck assemblies are attached to the bolster and a railcar body mounted to the combined unit.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicant: KASGRO RAIL CORPORATION
    Inventors: Jon Odden, David Stull