Patents by Inventor Gundolf Spitzner

Gundolf Spitzner 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).

  • Publication number: 20100314795
    Abstract: Disclosed is a method for continuously producing switch ties which differ from one another with respect to the length thereof and the mounting position of rail fastenings. Said method comprises the following steps: one or more supporting metal sheets and/or one or more internal molds are mounted in a tie mold according to the length and the shape of the switch tie to be produced, or at lease one tie mold is used which is adapted to the geometry of the switch tie to be produced; bracing bars are inserted as a reinforcement; the bracing bars are simultaneously tightened in an automatic manner by means of pairs of spindles, each bracing bar being individually tightened; concrete is filled into the tie mold; the switch tie is allowed to set; the switch tie is removed from the mold.
    Type: Application
    Filed: January 9, 2008
    Publication date: December 16, 2010
    Applicant: RAIL.ONE GMBH
    Inventors: Wolfgang Reinig, Gundolf Spitzner, Stephan Freudenstein
  • Patent number: 6764022
    Abstract: A railroad tie having a compact design for a fixed track with an overlay of asphalt of the Getrac A3 construction with a dowel stone which is inserted in a recess and which protrudes downward into engagement with a cavity pocket of the asphalt track. The railroad tie is constructed as a double railroad tie which forms only a narrow gap with the adjacent railroad tie in order to make radial laying (curve) possible and which is provided in the region of the dowel stone on the underside with lateral constrictions so that the cavity pockets can be filled subsequently.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: July 20, 2004
    Assignee: Pfleiderer Infrastrukturtechnik GmbH & Co. KG
    Inventors: Winfried Mohr, Gerhard Berns, Gundolf Spitzner
  • Publication number: 20030042322
    Abstract: A railroad tie of compact design for a fixed track with an overlay of asphalt of the Getrac A3 construction with a dowel stone, which is inserted in a recess and which, reaching over the railroad tie and protruding downward, engages a cavity pocket of the asphalt track. The railroad tie is constructed as a double railroad tie, which forms only a narrow gap with the adjacent railroad tie in order to make radial laying (curve) possible and which is provided in the region of the dowel stone on the underside with lateral constrictions, so that the cavity pockets can be filled subsequently.
    Type: Application
    Filed: August 1, 2002
    Publication date: March 6, 2003
    Inventors: Winfried Mohr, Gerhard Berns, Gundolf Spitzner