Patents by Inventor Lothar Barthel

Lothar Barthel 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: 7837453
    Abstract: A device (1) for driving an oil pump (2) for a transmission of a motor vehicle, having a pump housing (4), a transmission housing (3), a pump shaft (8), and a gear shaft (13), which is in rotationally fixed connection with the pump shaft (8). The gear shaft has a gear wheel (14) and is mounted in the transmission housing as part of a gear stage. It is proposed that the gear shaft (13) is bearing-mounted on both sides of the gear wheel.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: November 23, 2010
    Assignee: ZF Friedrichshafen AG
    Inventors: Lothar Barthel, Tobias Karstens
  • Publication number: 20070286757
    Abstract: A device (1) for driving an oil pump (2) for a transmission of a motor vehicle, having a pump housing (4), a transmission housing (3), a pump shaft (8), and a gear shaft (13), which is in rotationally fixed connection with the pump shaft (8). The gear shaft has a gearwheel (14) and is mounted in the transmission housing as part of a gear stage. It is proposed that the gear shaft (13) is bearing-mounted on both sides of the gear wheel.
    Type: Application
    Filed: May 15, 2007
    Publication date: December 13, 2007
    Applicant: ZF Friedrichshafen AG
    Inventors: Lothar Barthel, Tobias Karstens
  • Patent number: 6327934
    Abstract: A front-axle output of an automatic transmission having situated in a sealed housing (15) a front-axle spur pinion (1) which is operatively connected via an intermediate gear (4) with a driving gear. The output spur gear (1) is also connected for transmitting a torque to a differential (5) with a co-axially positioned pinion shaft (3A) which has one pinion engaged with the differential (5). The output spur gear (1) is designed as one piece with a side shaft (2) which is connected with the pinion shaft (3A) in an area of low bending stress between a support (10) of the pinion (3) and the pinion shaft (3A) and an output spur gear support (8).
    Type: Grant
    Filed: January 5, 2000
    Date of Patent: December 11, 2001
    Assignee: ZF Friedrichshafen AG
    Inventor: Lothar Barthel