Patents by Inventor John J. Jerwick

John J. Jerwick 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).

  • Single rail top cover assembly
    Patent number: 6321615
    Abstract: A top cover assembly for a manual transmission is provided having a plurality of gears and a reverse gear. The top cover assembly comprises a shift rail assembly, a reverse biasing assembly, and a shift housing assembly. The shift rail assembly includes a sensing device that interacts with a contoured surface for producing a first electronic signal in response to the shift rail being in a neutral position for range shifting. Another contoured surface acts to center the shift rail and an operatively connected shift lever. For reverse biasing, the shift lever has a first lower shift force when moved to shift at least one of the forward gears. An interlock supported by the shift rail and shift sleeve rotates with the shift rail and acts to lock out other gears during a gear shift. In one aspect of the invention, the interlock is also used for reverse biasing. A detent engages the interlock for creating a higher shift force than the first lower shift force when the shift lever is moved to shift the reverse gear.
    Type: Grant
    Filed: May 30, 2000
    Date of Patent: November 27, 2001
    Assignee: ZF Meritor, LLC
    Inventor: John J. Jerwick
  • Single rail top cover assembly
    Patent number: 6082215
    Abstract: A top cover assembly for a manual transmission having a plurality of gears and a reverse gear is provided. The top cover assembly comprises a shift rail assembly, a reverse biasing assembly, and a shift housing assembly. The shift rail assembly includes a sensing device that interacts with a contoured surface for producing a first electronic signal in response to the shift rail being in a neutral position for range shifting. Another contoured surface acts to center the shift rail and an operatively connected shift lever. For reverse biasing, the shift lever has a first lower shift force when moved to shift at least one of the forward gears. An interlock supported by the shift rail and shift sleeve rotates with the shift rail and acts to lock out other gears during a gear shift. In one aspect of the invention, the interlock is also used for reverse biasing. A detent engages the interlock for creating a higher shift force than the first lower shift force when the shift lever is moved to shift the reverse gear.
    Type: Grant
    Filed: August 28, 1998
    Date of Patent: July 4, 2000
    Assignee: ZF Meritor
    Inventor: John J. Jerwick