Patents by Inventor Hartwig Waldert

Hartwig Waldert 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: 20080187262
    Abstract: The invention relates to a sealed radial rolling bearing, in particular a wheel bearing for a motor vehicle, which substantially comprises an outer bearing ring and an inner bearing ring and a plurality of rolling bodies which roll between the bearing rings and are held with uniform spacing relative to one another by means of a bearing cage. Here, in each case one radially arranged sealing element extends between the bearing rings at each side at a distance axially from the rolling bodies, said sealing element having one or more sealing lips which are connected to the outer bearing ring and some into contact with a centrifugal ring which is connected by means of a press fit to the inner bearing ring.
    Type: Application
    Filed: April 28, 2006
    Publication date: August 7, 2008
    Applicant: SCHAEFFLER KG
    Inventors: Peter Niebling, Ernst Masur, Hartwig Waldert, Georg Schoener
  • Publication number: 20050126240
    Abstract: A method of making a rotationally symmetric body, particularly an annulus (1) for a planet gear carrier, said annulus comprising a tooth profile (2) and/or additional elements (3), and said method being a non-cutting shaping method comprising: working the tooth profile (2) and/or the additional elements (3) into a sheet metal strip (4), cutting the strip of sheet metal (4) into desired lengths before or after working in the tooth profile (2) and/or the additional elements (3), bending round the sheet metal strip (4) to form a rotationally symmetric body and fixing the ends of the strip of sheet metal strip(4) to each other.
    Type: Application
    Filed: January 29, 2003
    Publication date: June 16, 2005
    Inventors: Hartwig Waldert, Reinhard Kick-Rodenbucher
  • Patent number: 6883968
    Abstract: A shaped part made from a strip, peripherally contiguous ends of the strip being firmly connected to each other is characterized in that a recess (6) is arranged on one end of the strip (1) and an over-dimensioned projection (7) is arranged on the other end of the strip (1), and after bending round of the strip (1), said ends are fit into each other in axial or radial direction so that through a plastic deformation, an undetachable interference fit results between said ends.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: April 26, 2005
    Assignee: Ina-Schaeffler KG
    Inventors: Wolfgang Fugel, Leo Muntnich, Hartwig Waldert
  • Patent number: 6820514
    Abstract: A synchronizer body (1) of a synchronizing device for manual transmissions comprising a base body (2) made out of sheet metal by shaping, an inner toothing (11), and an outer toothing (10) and at least one reception (5) formed in the base body (2) for receiving a spring-loaded detent element (7) forms an assembled unit with the spring-loaded detent element (7).
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: November 23, 2004
    Assignee: Ina Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Publication number: 20030077017
    Abstract: A shaped part made from a strip, peripherally contiguous ends of the strip being firmly connected to each other is characterized in that a recess (6) is arranged on one end of the strip (1) and an over-dimensioned projection (7) is arranged on the other end of the strip (1), and after bending round of the strip (1), said ends are fit into each other in axial or radial direction so that through a plastic deformation, an undetachable interference fit results between said ends.
    Type: Application
    Filed: September 23, 2002
    Publication date: April 24, 2003
    Inventors: Wolfgang Fugel, Leo Muntnich, Hartwig Waldert
  • Patent number: 6547052
    Abstract: A synchronizing ring (1, 8, 13) having a substantially cone-shaped annular body (2, 10, 14, 21) is made by shaping out of sheet metal and is provided on its end section (2b) having the small cone-diameter, with stops (5, 6, 7) that extend in radial direction beyond the contour of the outer peripheral surface of the annular body (2, 10, 12, 14).
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: April 15, 2003
    Assignee: Ina Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Patent number: 6216550
    Abstract: A sliding sleeve of a synchronizer assembly for manual transmissions, said sliding sleeve having a sleeve body made by a non-chipping shaping procedure which sliding sleeve receives a gearshift fork guide on an outer peripheral surface and has a toothing extending in a direction of a central longitudinal axis of the sleeve body on an inner peripheral surface wherein the sleeve body is made as a one-piece component of sheet metal by a non-chipping shaping procedure.
    Type: Grant
    Filed: March 28, 2000
    Date of Patent: April 17, 2001
    Assignee: Ina Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Patent number: 6205876
    Abstract: A sliding sleeve of a synchronizer assembly for manual transmissions, said sliding sleeve having a sleeve body made by a non-chipping shaping procedure which sliding sleeve receives a gearshift fork guide on an outer peripheral surface and has a toothing extending in a direction of a central longitudinal axis of the sleeve body on an inner peripheral surface wherein the sleeve body is made as a one-piece component of sheet metal by a non-chipping shaping procedure.
    Type: Grant
    Filed: April 27, 1999
    Date of Patent: March 27, 2001
    Assignee: INA Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Patent number: 6145640
    Abstract: The invention relates to an indexing gear (21) for a synchronizing device (1) for a geared speed change transmission installed in motor vehicles to which a coupling body (22) as well as a friction ring (23) are allocated. In accordance with the invention, the indexing gear (21), the coupling body (22) as well as the friction ring (23) are constructed as component parts which can be prefabricated, which are joined in a rotatably fixed manner.
    Type: Grant
    Filed: November 24, 1999
    Date of Patent: November 14, 2000
    Assignee: INA Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Patent number: 6016895
    Abstract: The invention relates to an indexing gear (21) for a synchronizing device (1) for a geared speed change transmission installed in motor vehicles to which a coupling body (22) as well as a friction ring (23) are allocated. In accordance with the invention, the indexing gear (21), the coupling body (22) as well as the friction ring (23) are constructed as component parts which can be prefabricated, which are joined in a rotatably fixed manner.
    Type: Grant
    Filed: April 28, 1998
    Date of Patent: January 25, 2000
    Assignee: INA Walzlager Schaeffler oHG
    Inventors: Josef Schwuger, Rudolf Sinner, Hartwig Waldert
  • Patent number: 5417502
    Abstract: The invention concerns a cage for full-type roller bearings comprising pockets formed by crossbars, into which pockets peripheral sections of cylindrical rolling elements extend, the cage being arranged radially inside or outside of a pitch circle of the rolling elements.
    Type: Grant
    Filed: March 30, 1994
    Date of Patent: May 23, 1995
    Assignee: Ina Walzalager Schaeffler KG
    Inventors: Hartwig Waldert, Leo Muntnich, Jurgen Lechner, Hanns Seegers
  • Patent number: 5178474
    Abstract: A rolling element cage made particularly of polymeric material in which rolling elements are guided in pockets and which is split at at least one point of its periphery, the cage ends delimiting the separating gap being formed by crossbars which comprise projections and corresponding recesses which fix these cage ends at least in the axial direction by interlocking, characterized in that the recesses in the crossbar forming the respective cage end extend into the adjacent pocket and, when the separating gap is closed, the projections projecting into the recesses extend at the most upto the delimiting surface of the pocket facing the cage end.
    Type: Grant
    Filed: November 20, 1991
    Date of Patent: January 12, 1993
    Assignee: Ina Walzlager Schaeffler KG
    Inventors: Leo Muntnich, Hartwig Waldert, Wolgang Steinberger