Patents by Inventor Stephan Freudenstein

Stephan Freudenstein 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).

  • Patent number: 8146834
    Abstract: Concrete carriageway for rail vehicles, having single- or multiple-block sleepers embedded in a carriageway panel, whereby the carriageway panel has areas of thinned cross-section disposed transverse to the direction of travel for generating cracks and in each has at least one body for transmitting transverse forces which overlaps the region of thinned cross-section on both sides.
    Type: Grant
    Filed: November 26, 2005
    Date of Patent: April 3, 2012
    Assignee: Rail.One GmbH
    Inventor: Stephan Freudenstein
  • 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: 7850089
    Abstract: Fixed carriageway for rail vehicles having sleepers embedded in a carriageway panel and a reinforcement includes plural longitudinal and transverse rods disposed parallel and transverse to the sleepers, wherein the longitudinal rods and transverse rods are electrically isolated from one another.
    Type: Grant
    Filed: February 15, 2006
    Date of Patent: December 14, 2010
    Assignee: Rail.One GmbH
    Inventors: Stephan Freudenstein, Franz Geissler, Christof Nottbeck, Sascha Lay
  • Publication number: 20100308122
    Abstract: Concrete sleeper with fixing elements incorporated, insertable or inserted into a sleeper body for fixing rails, wherein the sleeper body of the concrete sleeper (1, 18) has at least four apertures for fixing elements per rail (5) to be fixed, the apertures being arranged in pairs to the left and right of the rail support area (2), the two apertures for fixing elements of one pair being arranged staggered in the longitudinal direction of the concrete sleeper (1, 18).
    Type: Application
    Filed: September 23, 2008
    Publication date: December 9, 2010
    Applicant: RAIL.ONE GMBH
    Inventors: Stephan Freudenstein, Gerhard Berns
  • Patent number: 7810741
    Abstract: Method of adjusting the height of a fixed rail carriageway, in which the sleepers supporting the rails are embedded in a carriageway panel resting on a substrate includes the steps of separating the carriageway panel from the substrate at the common contact face, forming filling apertures extending from the upper face to the lower face of the carriageway panel, lifting the carriageway panel to a fixed target height, incorporating a flowable casting material through the filling apertures in order to fill the space between the carriageway panel and the substrate, wherein separation is effected by pressure impacts.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: October 12, 2010
    Assignee: Rail.One GmbH
    Inventors: Martin Kowalski, Stephan Freudenstein
  • Publication number: 20100181699
    Abstract: Method of manufacturing a concrete sleeper, comprising the following steps: insertion of pre-stressing rods into a sleeper mould, simultaneous automated tensioning of the individual pre-stressing rods, filling of the sleeper mould with concrete, leaving of the concrete to harden, removal of the concrete sleeper from the mould, wherein for one concrete sleeper more than four, in particular five to eight, pre-stressing rods are used and the pre-stressing rods are tensioned individually yet simultaneously.
    Type: Application
    Filed: January 3, 2008
    Publication date: July 22, 2010
    Applicant: RAIL.ONE GMBH
    Inventors: Stephan Freudenstein, Viktor Klein, Franz Geissler
  • Publication number: 20080315002
    Abstract: Fitted carriageway for rail vehicles having rails fixed on sleepers, which are supported by a structure engineered in concrete or a concrete composite, in which case the sleepers are embedded in the structural concrete of the engineered structure or in a protective concrete layer or are mounted direct on the structural concrete or the protective concrete layer.
    Type: Application
    Filed: May 22, 2006
    Publication date: December 25, 2008
    Inventor: Stephan Freudenstein
  • Publication number: 20080257971
    Abstract: Method of adjusting the height of a fixed rail carriageway, in which the sleepers supporting the rails are embedded in a carriageway panel resting on a substrate includes the steps of separating the carriageway panel from the substrate at the common contact face, forming filling apertures extending from the upper face to the lower face of the carriageway panel, lifting the carriageway panel to a fixed target height, incorporating a flowable casting material through the filling apertures in order to fill the space between the carriageway panel and the substrate, wherein separation is effected by pressure impacts.
    Type: Application
    Filed: March 20, 2006
    Publication date: October 23, 2008
    Inventors: Martin Kowalski, Stephan Freudenstein
  • Publication number: 20080116290
    Abstract: Concrete carriageway for rail vehicles, having single- or multiple-block sleepers embedded in a carriageway panel, whereby the carriageway panel has areas of thinned cross-section disposed transverse to the direction of travel for generating cracks and in each has at least one body for transmitting transverse forces which overlaps the region of thinned cross-section on both sides.
    Type: Application
    Filed: November 26, 2005
    Publication date: May 22, 2008
    Inventor: Stephan Freudenstein
  • Publication number: 20080105757
    Abstract: Concrete sleeper for high dynamic loads having rail support surfaces (2) and a lower sole region, consisting of a high-strength standard concrete (4) capable of withstanding high compression forces, whereby the rail support faces (2) and/or the lower sole region consist(s) of a wear-resistant, abrasion-resistant or tension-resistant material.
    Type: Application
    Filed: November 25, 2005
    Publication date: May 8, 2008
    Inventor: Stephan Freudenstein
  • Publication number: 20070164125
    Abstract: Fixed carriageway for rail vehicles having sleepers embedded in a carriageway panel and a reinforcement includes plural longitudinal and transverse rods disposed parallel and transverse to the sleepers, wherein the longitudinal rods and transverse rods are electrically isolated from one another.
    Type: Application
    Filed: February 15, 2006
    Publication date: July 19, 2007
    Inventors: Stephan Freudenstein, Franz Geissler, Christof Nottbeck, Sascha lay