Patents by Inventor Rüdiger Nitzschke

Rüdiger Nitzschke 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: 6347556
    Abstract: For a 12-speed transmission for utility vehicles in 2×3×2 construction, a shift lever (1) is proposed which is configured as a universal joint with a shift fork (2) and a reversing lever (3). The shift fork is supported pivotally jointly with the transmission while the reversing lever (3) is pivotally mounted on the shift fork. When the shift fork is actuated, the synchronization movement, which occurs upon engagement in a synchronization block, runs in opposite direction, when the reverse lever is shifted in the same direction. This makes it possible to shift through the six speeds of the main gear in one stroke with successive shift movements in opposite direction.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: February 19, 2002
    Assignee: ZF Friedrichshafen AG
    Inventors: Rüdiger Nitzschke, Bernd Schepperle
  • Patent number: 6318211
    Abstract: To obtain in a 12-speed transmission for utility vehicles in 2×3×2 construction moving a logical shift diagram by alternating shifting movements back and forth with a continuously increasing or decreasing gear sequence, the two gear steps of the front-mounted section (GV) are manually shifted alternate for each gear step of a pneumatically shifted main section (GR). The rear steps of the main section (GH) are activated pneumatically by activating devices (S1, S2, S3) when changing from one to the next gear step. The transition from the slow to fast step (L, S) of each gear step is automatically carried out pneumatically by the rear-mounted section (GP).
    Type: Grant
    Filed: May 15, 2000
    Date of Patent: November 20, 2001
    Assignee: ZF Friedrichshafen AG
    Inventors: Rüdiger Nitzschke, Bernd Schepperle