Patents by Inventor Clement J. Kniola

Clement J. Kniola 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).

  • Cambered hatch cover seal arrangement
    Patent number: 4245565
    Abstract: A trough hatch cover for a covered railway hopper car including an easily replaceable longitudinally convergently tapered elastomeric seal reactive therewith to form a weather-tight seal about the periphery of the hatch when secured by clamps at opposite ends of the hatch cover.
    Type: Grant
    Filed: February 28, 1978
    Date of Patent: January 20, 1981
    Assignee: Pullman Incorporated
    Inventors: Marvin Stark, Clement J. Kniola