Patents by Inventor Werner Obel

Werner Obel 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).

  • Telescopic adjusting crank for tractor 3-point hitch
    Patent number: 4709941
    Abstract: The telescopic adjusting crank for adjusting a lift link of a tractor 3-point hitch consists of an upper outer tube, an inner shaft and a slide tube wherein the slide tube is fixedly connected to the upper end of the inner shaft and is slidably positioned within the upper outer tube. The slide tube is of a greater dimension than the shaft so that a gap remains between the outer tube and the inner shaft. The outer tube and the sliding tube are of such lengths that the sliding tube remains completely within the outer tube through the full range of movement.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: December 1, 1987
    Assignee: Deere & Company
    Inventors: Werner Obel, Klaus Zahn