Patents by Inventor Clemens Ryzner

Clemens Ryzner 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).

  • Built-in two-way directional control valve
    Patent number: 4794951
    Abstract: A valve having a piston which, by the admission of pressure, is displaceable is a bore of a valve housing for blocking and clearing lines leading through the valve housing, wherein at least one piston (5) is displaceable in an outer piston (3), which inner piston (5) projects beyond the outer piston (3), with a valve seat (6, 7) in each case being allocated to both pistons for blocking and clearing a line.
    Type: Grant
    Filed: July 22, 1987
    Date of Patent: January 3, 1989
    Assignee: Paul Pleiger Maschinenfabric GmbH & Co. KG
    Inventor: Clemens Ryzner
  • Piston guide for hollow piston of a radial piston engine
    Patent number: 4683806
    Abstract: In a radial piston engine, in order to reduce the friction forces appearing at the pistons, a guide part is provided which engages a hollow piston through a guide section and which includes a bearing section at its outer end, by means of which the guide part is pivotably mounted in the cylinder cover.
    Type: Grant
    Filed: August 6, 1985
    Date of Patent: August 4, 1987
    Assignee: Paul Maschinenfabrik GmbH & Co. KG
    Inventor: Clemens Ryzner