Patents by Inventor John Birkmann

John Birkmann 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).

  • Door sealing assembly for a railcar and method of assembling the same
    Patent number: 9789882
    Abstract: A railcar door sealing assembly includes a first door seal member coupled to a first door plate of a first door of the railcar. The door sealing assembly also includes a second door seal member coupled to a second door plate of a second door of the railcar. The first door seal member at least partially overlaps with the second door seal member in a face-to-face relationship when the first door and the second door are in the closed position.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: October 17, 2017
    Assignee: American Railcar Industries, Inc.
    Inventors: Roger Dalske, Spencer Ashie-Winns, Hariharanath Kavuri, John Birkmann
  • DOOR SEALING ASSEMBLY FOR A RAILCAR AND METHOD OF ASSEMBLING THE SAME
    Publication number: 20150096458
    Abstract: A railcar door sealing assembly includes a first door seal member coupled to a first door plate of a first door of the railcar. The door sealing assembly also includes a second door seal member coupled to a second door plate of a second door of the railcar. The first door seal member at least partially overlaps with the second door seal member in a face-to-face relationship when the first door and the second door are in the closed position.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: Roger Dalske, Spencer Ashie-Winns, Hariharanath Kavuri, John Birkmann