Patents by Inventor Gerald Durchschlag, deceased

Gerald Durchschlag, deceased 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 switch setting device
    Patent number: 6056244
    Abstract: A device for setting railway switches includes a plurality of interlinked hydraulic switching devices (6) connected to a separate reversible hydraulic drive unit in a manner offset in the longitudinal direction of the rails, wherein the working volumes of the hydraulic cylinder piston aggregates (6) are connected to driving movement in same direction. The pistons (20) or plungers (11) include push-open valves (18) for travel limitation.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: May 2, 2000
    Assignee: Vae Aktiengesellschaft
    Inventors: Gerald Durchschlag, deceased, Herbert Achleitner