Patents by Inventor Erik Schamper

Erik Schamper 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).

  • Driveshaft plunging unit
    Patent number: 6921338
    Abstract: An axial plunging unit for torque transmission within a driveline which includes a profiled journal (11) with first circumferentially distributed longitudinally extending ball grooves (12), a profiled sleeve (13) with second circumferentially distributed longitudinally extending ball grooves (14), balls (15) which are arranged in pairs of first and second ball grooves (12,14) in identical groups, and a supporting and attaching sleeve (21) which is slid on to the profiled sleeve (13) so as to ensure the transmission of torque.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: July 26, 2005
    Assignee: GKN Lobro GmbH
    Inventors: Herbert Cermak, Erik Schamper
  • Settable plunging unit
    Patent number: 6705948
    Abstract: An axial plunging unit for transmitting torque within a driveline, includes a profiled sleeve (11) with circumferentially distributed longitudinally extending first ball grooves (12), a profiled journal (13) with circumferentially distributed longitudinally extending second ball grooves (14), and balls (15) which are arranged in pairs of first and second ball grooves (12, 14) in groups (k) of balls, wherein the number of first ball grooves (11) corresponds to m times the number k of the groups of balls and wherein the longitudinal axes of the first, second, etc. to the mth of the first ball grooves 12, as counted circumferentially, are positioned on different pitch circle diameters.
    Type: Grant
    Filed: May 7, 2002
    Date of Patent: March 16, 2004
    Assignee: GKN Lobro GmbH
    Inventors: Herbert Cermak, Erik Schamper, Michael Zierz
  • Driveshaft plunging unit
    Publication number: 20020177485
    Abstract: An axial plunging unit for torque transmission within a driveline which includes a profiled journal (11) with first circumferentially distributed longitudinally extending ball grooves (12), a profiled sleeve (13) with second circumferentially distributed longitudinally extending ball grooves (14), balls (15) which are arranged in pairs of first and second ball grooves (12,14) in identical groups, and a supporting and attaching sleeve (21) which is slid on to the profiled sleeve (13) so as to ensure the transmission of torque.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 28, 2002
    Inventors: Herbert Cermak, Erik Schamper
  • Settable plunging unit
    Publication number: 20020169026
    Abstract: An axial plunging unit for transmitting torque within a driveline, includes a profiled sleeve (11) with circumferentially distributed longitudinally extending first ball grooves (12), a profiled journal (13) with circumferentially distributed longitudinally extending second ball grooves (14), and balls (15) which are arranged in pairs of first and second ball grooves (12, 14) in groups (k) of balls, wherein the number of first ball grooves (11) corresponds to m times the number k of the groups of balls and wherein the longitudinal axes of the first, second, etc. to the mth of the first ball grooves 12, as counted circumferentially, are positioned on different pitch circle diameters.
    Type: Application
    Filed: May 7, 2002
    Publication date: November 14, 2002
    Inventors: Herbert Cermak, Erik Schamper, Michael Zierz