Patents by Inventor Andreas Essl

Andreas Essl 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).

  • Roll forming method for producing longitudinally toothed profiled bodies in pot-shaped cylindrical workpieces
    Patent number: 8539806
    Abstract: A roll-forming process for producing longitudinally toothed profiled bodies in a pot-shaped cylindrical workpiece in which, during a first rolling process (A), the pot-shaped cylindrical workpiece (1) is moved through a first rolling stage with a bottom (3) of the workpiece being rolled first. During at least one further rolling process (B, C), the workpiece (1) passes through at least one further rolling stage with an open end of the workpiece being rolled first.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: September 24, 2013
    Assignees: ZF Friedrichshafen AG, Allgaier Werke GmbH
    Inventors: Peter Hoehne, Martin Meyer, Ralf Fischer, Andreas Essl
  • ROLL FORMING METHOD FOR PRODUCING LONGITUDINALLY TOOTHED PROFILED BODIES IN POT-SHAPED CYLINDRICAL WORKPIECES
    Publication number: 20110083485
    Abstract: A roll-forming process for producing longitudinally toothed profiled bodies in a pot-shaped cylindrical workpiece in which, during a first rolling process (A), the pot-shaped cylindrical workpiece (1) is moved through a first rolling stage with a bottom (3) of the workpiece being rolled first. During at least one further rolling process (B, C), the workpiece (1) passes through at least one further rolling stage with an open end of the workpiece being rolled first.
    Type: Application
    Filed: May 27, 2009
    Publication date: April 14, 2011
    Applicant: ZF Friedrichshafen AG
    Inventors: Martin Meyer, Peter Hoehne, Ralf Fischer, Andreas Essl