Patents by Inventor Hans-Ulrich Leutwein

Hans-Ulrich Leutwein 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: 7637509
    Abstract: The invention relates to a gasket (1), particularly for a fuel high-pressure pump, comprising a first cutout (2) for a cylinder head, a second cutout (3) for a high-pressure channel, and a third cutout (4) for an induction channel. A first (5) and second sealing bead (6) are respectively formed around the cutouts for the high-pressure channel as well as around the cutout for the induction channel. The gasket (1) comprises a wider third sealing bead (7) that is formed so that it encircles the other sealing beads.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: December 29, 2009
    Assignee: Continental Automotive GmbH
    Inventors: Karl Duβler, Karl Huber, Hans-Ulrich Leutwein, Josef Ludwig, Matthias Weidner
  • Publication number: 20090072492
    Abstract: The invention relates to a gasket (1), particularly for a fuel high-pressure pump, comprising a first cutout (2) for a cylinder head, a second cutout (3) for a high-pressure channel, and a third cutout (4) for an induction channel. A first (5) and second sealing bead (6) are respectively formed around the cutouts for the high-pressure channel as well as around the cutout for the induction channel. The gasket (1) comprises a wider third sealing bead (7) that is formed so that it encircles the other sealing beads.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 19, 2009
    Inventors: Karl Dussler, Karl Huber, Hans-Ulrich Leutwein, Josef Ludwig, Matthias Weidner
  • Publication number: 20060001222
    Abstract: The invention relates to a gasket (1), particularly for a fuel high-pressure pump, comprising a first cutout (2) for a cylinder head, a second cutout (3) for a high-pressure channel, and a third cutout (4) for an induction channel. A first (5) and second sealing bead (6) are respectively formed around the cutouts for the high-pressure channel as well as around the cutout for the induction channel. The gasket (1) comprises a wider third sealing bead (7) that is formed so that it encircles the other sealing beads.
    Type: Application
    Filed: September 7, 2005
    Publication date: January 5, 2006
    Inventors: Karl Dussler, Karl Huber, Hans-Ulrich Leutwein, Josef Ludwig, Matthias Weidner
  • Patent number: 6315268
    Abstract: A solenoid for a hydraulic valve has an armature chamber having chamber walls. A pole core forms one of the chamber walls and has an axial central bore. An armature is slidably arranged in the armature chamber. The armature has a central receptacle. An armature piston is arranged in the central receptacle of the armature and extends through the axial central bore of the pole core. The armature piston consists of a nonmagnetic material. The armature piston acts on a valve member when moved by the armature piston. The armature piston is a tubular member formed of a piece of planar sheet metal and has a radially outwardly projecting anti-stick disc that defines a minimal axial spacing between the armature and the pole core. The radially outwardly projecting anti-stick disc is formed as a monolithic part of the tubular member by parts of the sheet metal being bent radially outwardly relative to the tubular member.
    Type: Grant
    Filed: July 24, 2000
    Date of Patent: November 13, 2001
    Assignee: Hydraulik-Ring GmbH
    Inventors: Marius Cornea, Hans-Ulrich Leutwein, Lorenz Lippert