Patents by Inventor Franz-Josef Marquardt

Franz-Josef Marquardt 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: 10173487
    Abstract: A joint device (6) including an axially extending pivot pin (8) and a housing (11) that surrounds the pivot pin radially, wholly or partially, such that the pivot pin (8) and the housing (11) can move relative to one another at least by pivoting. A separate retaining element (12; 13), for the housing (11), is associated with the joint device (6). The joint device is designed in such manner that the retaining element (11) starts from an area (14) of the housing (11) and engages in a substantially axial channel (15) of the pin (8).
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: January 8, 2019
    Assignee: ZF FRIEDRICHSHAFEN AG
    Inventors: Lars von der Haar, Heinfried Helms, Franz-Josef Marquardt, Jens Donzelmann, Holger Rudolph, Andreas Rosengarten
  • Publication number: 20150328946
    Abstract: A joint device (6) including an axially extending pivot pin (8) and a housing (11) that surrounds the pivot pin radially, wholly or partially, such that the pivot pin (8) and the housing (11) can move relative to one another at least by pivoting. A separate retaining element (12; 13), for the housing (11), is associated with the joint device (6). The joint device is designed in such manner that the retaining element (11) starts from an area (14) of the housing (11) and engages in a substantially axial channel (15) of the pin (8).
    Type: Application
    Filed: November 18, 2013
    Publication date: November 19, 2015
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Lars von der HAAR, Heinfried HELMS, Franz-Josef MARQUARDT, Jens DONZELMANN, Holger RUDOLPH, Andreas ROSENGARTEN
  • Patent number: 7744103
    Abstract: A junction connection is provided that is used to connect a torque transmitting junction component (2) to a hollow shaft (1). The junction component (2) includes a continuous recess which has a shape which corresponds to the outer cross-section of the hollow shaft (1) and which is used to receive the hollow shaft (1). The hollow shaft (1) includes a press stopper (8) in the connection area between the hollow shaft (1) and the junction component (2). The press stopper (8) forms, at least sectionally, a press fit with the wall of the hollow shaft (1). The junction connection enables the transmission of comparatively high torque during the entire service life thereof. The junction connection is also compatible with thin-walled, light-weight hollow shafts. The junction connection limits production costs, mounting and maintenance.
    Type: Grant
    Filed: November 21, 2006
    Date of Patent: June 29, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Matthias Gercke, Jens Eismann, Franz-Josef Marquardt
  • Patent number: 7001076
    Abstract: A housing for receiving a bearing component is presented, which has a shaft projection, which can be inserted into the recess of the end area of a hollow section and can be pressed together with the end area, wherein the shaft projection is provided with a groove profile, in which the groove profile is prepared by a deformation process or an original shaping process. Notch effect and consequently a weakening of the cross section on the highly stressed shaft projection is avoided by the said processes. The present invention pertains, moreover, to such a groove profile located at a shaft projection of a housing.
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: February 21, 2006
    Assignee: ZF Lemförder Metallwaren AG
    Inventors: Wilfried Lustig, Matthias Gercke, Franz-Josef Marquardt, Sören Knopp, Ralf Kunze
  • Publication number: 20040180567
    Abstract: A housing for receiving a bearing component is presented, which has a shaft projection, which can be inserted into the recess of the end area of a hollow section and can be pressed together with the end area, wherein the shaft projection is provided with a groove profile, in which the groove profile is prepared by a deformation process or an original shaping process. Notch effect and consequently a weakening of the cross section on the highly stressed shaft projection is avoided by the said processes. The present invention pertains, moreover, to such a groove profile located at a shaft projection of a housing.
    Type: Application
    Filed: March 24, 2004
    Publication date: September 16, 2004
    Inventors: Wilfried Lustig, Matthias Gercke, Franz-Josef Marquardt, Soren Knopp, Ralf Kunze