Patents by Inventor Jean-Paul Castanet

Jean-Paul Castanet 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: 8747011
    Abstract: A ball and socket joint, for example, for an axle system of a motor vehicle, as well as to a process for manufacturing a joint housing for a ball and socket joint. The ball and socket joint has an essentially annular joint housing (3), in the cylindrical interior space of which a ball shell (1) can be arranged. The ball (2) of a ball pivot can be accommodated in the ball shell (1) in a slidingly movable manner. The joint housing is of a smooth cylindrical design in the area of a housing cover-side functional section (14), while elevations (10) and/or depressions (15) are arranged in the area of a ball pivot-side functional section (13) of the inner jacket surface of the joint housing.
    Type: Grant
    Filed: January 15, 2007
    Date of Patent: June 10, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Behre, Christian Maassmann, Jens Bach, Dirk Adamczyk, Reinhard Stöterau, Jean-Paul Castanet, Marc Rochigneux
  • Publication number: 20100158603
    Abstract: A ball and socket joint, for example, for an axle system of a motor vehicle, as well as to a process for manufacturing a joint housing for a ball and socket joint. The ball and socket joint has an essentially annular joint housing (3), in the cylindrical interior space of which a ball shell (1) can be arranged. The ball (2) of a ball pivot can be accommodated in the ball shell (1) in a slidingly movable manner, and the joint housing (3) has elevations (10) and/or depressions (15) arranged in the area of its inner jacket surface (13, 14) for engagement with the surface of the ball shell (1).
    Type: Application
    Filed: January 15, 2007
    Publication date: June 24, 2010
    Inventors: Matthias Behre, Christian Maassmann, Jens Bach, Dirk Adamczyk, Reinhard Stöterau, Jean-Paul Castanet, Marc Rochigneux
  • Publication number: 20070211972
    Abstract: A process is provided for manufacturing balls, especially for ball and socket joints, as well as to a ball element for two-part ball pivots. The microalloyed carbon-manganese steel balls are manufactured by cold extrusion and subsequent grinding. Annealing can thus be completely eliminated, as a result of which a less expensive material can be used. The process makes possible a manufacture of balls especially for two-part ball pivots in a simpler manner and at a lower cost, and the surface finish and the material quality as well as the strength and the wear resistance are at the same time preserved or increased. As a result, the effort needed to manufacture the balls is reduced, and, moreover, the problem of the impact marks often developing on the ball surfaces during tempering is eliminated.
    Type: Application
    Filed: May 2, 2005
    Publication date: September 13, 2007
    Inventors: Jochen Kruse, Dirk Adamczyk, Reinhard Stoeterau, Jean-Paul Castanet
  • Patent number: 7073970
    Abstract: A ball-and-socket joint for a motor vehicle, especially for a rocker pendulum of a motor vehicle, is provided with a housing (1), which is open on at least one side and into the interior space (2) of which a bearing shell (3) is inserted, which in turn accommodates a joint ball (4) of a ball pivot (5) in a slidingly movable manner. The interior space (2) has elevations and/or depressions (7) along its inner jacket surface (6) or a polygonal cross section, so that the bearing shell (3), which is provided with an oversize in relation to the inner jacket surface (6), can be inserted into the housing (1) in a positive-locking manner while its outer surface undergoes a partial plastic deformation. The inner jacket surface (6) may have pressure zones (19) which shorten the effective length of the elevations and/or depressions (7).
    Type: Grant
    Filed: December 20, 2002
    Date of Patent: July 11, 2006
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Matthias Gercke, Christian Maassmann, Jean-Paul Castanet, Jürgen Gräber, Thomas Catterfeld
  • Publication number: 20040105722
    Abstract: A ball-and-socket joint for a motor vehicle, especially for a rocker pendulum of a motor vehicle, is provided with a housing (1), which is open on at least one side and into the interior space (2) of which a bearing shell (3) is inserted, which in turn accommodates a joint ball (4) of a ball pivot (5) in a slidingly movable manner. The interior space (2) has elevations and/or depressions (7) along its inner jacket surface (6) or a polygonal cross section, so that the bearing shell (3), which is provided with an oversize in relation to the inner jacket surface (6), can be inserted into the housing (1) in a positive-locking manner while its outer surface undergoes a partial plastic deformation. The inner jacket surface (6) may have pressure zones (19) which shorten the effective length of the elevations and/or depressions (7).
    Type: Application
    Filed: September 25, 2003
    Publication date: June 3, 2004
    Inventors: Matthias Gercke, Christian Maassmann, Jean-Paul Castanet, Jurgen Graber, Thomas Catterfeld