Patents by Inventor Martin Haffner

Martin Haffner 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).

  • Hydraulic module
    Patent number: 8713932
    Abstract: A hydraulic module with two inclined-axis drive systems. The hydraulic module comprises a yoke (1) which, by virtue of a pin (5) that is in active connection with a piston (6), is pivoted about a horizontal pivot axis (4) so as to adjust the stroke volume of the two inclined-axis drive systems.
    Type: Grant
    Filed: April 28, 2009
    Date of Patent: May 6, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Martin Haffner, Udo Brehmer
  • HYDRAULIC MODULE
    Publication number: 20110061524
    Abstract: A hydraulic module with two inclined-axis drive systems. The hydraulic module comprises a yoke (1) which, by virtue of a pin (5) that is in active connection with a piston (6), is pivoted about a horizontal pivot axis (4) so as to adjust the stroke volume of the two inclined-axis drive systems.
    Type: Application
    Filed: April 28, 2009
    Publication date: March 17, 2011
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Martin Haffner, Udo Brehmer
  • Hydrostatic-mechanical transmission
    Patent number: 7814813
    Abstract: A hydrostatic-mechanical transmission having a radial piston motor (1) with a crankshaft (2) which drives a spur gear (7). A transmission housing comprises three housing portions which define two separate spaces. The spur gear arrangement is located in one of the spaces while the radial piston motor is located in the other space.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: October 19, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Jurgen Legner, Klaus Baumann, Martin Haffner
  • Hydrostatic-mechanical transmission
    Patent number: 7703352
    Abstract: A hydrostatic-mechanical transmission with a radial piston motor (1) which has a crankshaft (2) that drives a spur gear (7) and the crankshaft (2) is rotatably mounted at three bearing points (12, 13, 14).
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: April 27, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Jurgen Legner, Klaus Baumann, Martin Haffner
  • HYDROSTATIC-MECHANICAL TRANSMISSION
    Publication number: 20080070735
    Abstract: A hydrostatic-mechanical transmission having a radial piston motor (1) with a crankshaft (2) which drives a spur gear (7). A transmission housing comprises three housing portions which define two separate spaces. The spur gear arrangement is located in one of the spaces while the radial piston motor is located in the other space.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Jurgen LEGNER, Klaus BAUMANN, Martin HAFFNER
  • HYDROSTATIC-MECHANICAL TRANSMISSION
    Publication number: 20080070734
    Abstract: A hydrostatic-mechanical transmission has a radial piston motor (1) whose crankshaft (2) drives a spur gear (7) and is mounted at three bearing points (12, 13, 14).
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Jurgen LEGNER, Klaus BAUMANN, Martin HAFFNER