Patents by Inventor Herbert Knepper

Herbert Knepper 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).

  • Apparatus with rear and front power lift, common regulating and control elements, and changeover valve
    Patent number: 4537260
    Abstract: An apparatus for a tractor having a rear and front implement attachment mechanism. Each such mechanism has a hydraulic power lift which acts on it. The power lifts have in common a regulator and control device with a changeover valve. By activating this changeover valve, selectively one of the power lifts can be regulated in conformity with the provided adjustment features, such as the actual values of the position, of the cylinder pressure, etc., while at the same time the other power lift is connected with a control member for random influence of this last-mentioned power lift.
    Type: Grant
    Filed: April 12, 1983
    Date of Patent: August 27, 1985
    Assignee: Klockner-Humboldt-Deutz Aktiengesellschaft
    Inventor: Herbert Knepper