Patents by Inventor Louis G. Korolis

Louis G. Korolis 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).

  • Railway hopper car side door actuating mechanism
    Patent number: 4138948
    Abstract: A side dump railway hopper car with outwardly movable discharge doors includes a door operating mechanism including pivoted keeper engaging members adapted to be rotated between lock an open positions. The pivoted keeper engaging members are actuated by linkage mechanism transversely movable by a longitudinally extending movable cam adapted to be supported on the underframe of the hopper car.
    Type: Grant
    Filed: April 27, 1977
    Date of Patent: February 13, 1979
    Assignee: Pullman Incorporated
    Inventor: Louis G. Korolis