Patents by Inventor Korst Knabel

Korst Knabel 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: 4048840
    Abstract: Apparatus for producing an instantaneous pressure on a workpiece includes a working piston, one side of which is impinged by gas under pressure tending to move the working piston from a starting position in a direction towards the workpiece, whereas the other side of the working piston is over a control valve impingable by a pressure fluid, preferably a hydraulic fluid, whereby the working piston is returnable to the starting position.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: September 20, 1977
    Inventor: Korst Knabel