Patents by Inventor Manfred Diederich

Manfred Diederich 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).

  • Subassembly for the amplitude-dependent absorption of shock
    Patent number: 7201260
    Abstract: A subassembly for the amplitude-dependent absorption of shock, especially in a dashpot for a motor vehicle with a piston and an oscillating piston rod. The piston (3) is accommodated in a housing (2), partitioning the housing into two compartments (4 & 5), and travels up and down inside the housing, radially aligned and axially subject to motion-limiting tension, on the end of the piston rod (1). The object is a simple and reliable subassembly that takes up little additional space. The piston is accordingly axially tensioned between two springs (17 & 18).
    Type: Grant
    Filed: May 26, 2004
    Date of Patent: April 10, 2007
    Assignee: ThyssenKrupp Bilstein GmbH
    Inventors: Manfred Diederich, Jan Kirch, Werner Stüber
  • Piston for a hydraulic dashpot, and method of manufacturing such a piston
    Patent number: 6868947
    Abstract: A piston for a hydraulic dashpot. The piston (1) is mounted on one end of a piston rod (3), travels back and forth inside a cylinder (2), which it divides into two chambers (4 & 5), and has a body (10) provided with axial channels (6 & 7), each of which can be opened and closed at the end by a one-way valve in the form of a cup spring or stack of cup springs (8 & 9), independently adjusting their tensions for both the compression and the suction phases. The cup springs (8 & 9) rest against and in alignment with the body, and the tension is adjusted by deforming the body resiliently or plasticly against its contact surface.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: March 22, 2005
    Assignee: Krupp Bilstein GmbH
    Inventors: Jürgen Adamek, Thomas Sasse, Manfred Diederich, Axel Gaillard, Heribert Justinger, Alfred Mathony, Christian Satzek, Stefan Schwindling, Bernd Stichler
  • Subassembly for the amplitude-dependent absorption of shock
    Publication number: 20040245058
    Abstract: A subassembly for the amplitude-dependent absorption of shock, especially in a dashpot for a motor vehicle with a piston and an oscillating piston rod. The piston (3) is accommodated in a housing (2), partitioning the housing into two compartments (4 & 5), and travels up and down inside the housing, radially aligned and axially subject to motion-limiting tension, on the end of the piston rod (1). The object is a simple and reliable subassembly that takes up little additional space. The piston is accordingly axially tensioned between two springs (17 & 18).
    Type: Application
    Filed: May 26, 2004
    Publication date: December 9, 2004
    Inventors: Manfred Diederich, Jan Kirch, Werner Stuber
  • Piston for a hydraulic dashpot, and method of manufacturing such a piston
    Publication number: 20020070085
    Abstract: A piston for a hydraulic dashpot. The piston (1) is mounted on one end of a piston rod (3), travels back and forth inside a cylinder (2), which it divides into two chambers (4 & 5), and has a body (10) provided with axial channels (6 & 7), each of which can be opened and closed at the end by a one-way valve in the form of a cup spring or stack of cup springs (8 & 9), independently adjusting their tensions for both the compression and the suction phases. The cup springs (8 & 9) rest against and in alignment with the body, and the tension is adjusted by deforming the body resiliently or plasticly against its contact surface.
    Type: Application
    Filed: October 16, 2001
    Publication date: June 13, 2002
    Inventors: Jurgen Adamek, Thomas Sasse, Manfred Diederich, Axel Gaillard, Heribert Justinger, Alfred Mathony, Christian Satzek, Stefan Schwindling, Bernd Stichler