Patents by Inventor Henry Wittkopf

Henry Wittkopf 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).

  • Axial piston machine
    Patent number: 7500425
    Abstract: The invention relates to an axial piston machine, in particular, an air-conditioning compressor for motor vehicles, with at least one piston, an essentially cylindrical piston shaft and an enclosure, which encloses a tilt ring or a tilt disc and a piston slipper sliding on said tilt ring or said tilt disc, whereby the enclosure has spherical recesses for housing the piston slipper.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: March 10, 2009
    Assignee: Luk Fahrzeug-Hydraulik GmbH & Co. KG
    Inventors: Volker Seipel, Willi Parsch, Georg Weber, Peter Barth, Henry Wittkopf, Peter Kuhn
  • Axial piston machine
    Publication number: 20060230922
    Abstract: The invention relates to an axial piston machine, in particular, an air-conditioning compressor for motor vehicles, with at least one piston, an essentially cylindrical piston shaft and an enclosure, which encloses a tilt ring or a tilt disc and a piston slipper sliding on said tilt ring or said tilt disc, whereby the enclosure has spherical recesses for housing the piston slipper.
    Type: Application
    Filed: December 12, 2003
    Publication date: October 19, 2006
    Applicant: LUK FAHRZEUG-HYDRAULIK GMBH & CO. KG
    Inventors: Volker Seipel, Willi Parsch, Georg Weber, Peter Barth, Henry Wittkopf, Peter Kuhn