Patents by Inventor Mark Rössner

Mark Rössner 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).

  • Gas spring with end position damping
    Patent number: 7428953
    Abstract: The invention relates to a gas spring with end position damping having a piston-cylinder unit which is provided with two identically configured pistons arranged in a mirror-like image. Each piston has two axially extending parts defining an annular groove therebetween. The groove is configured to receive an annular sealing ring operative to axially move within the groove. The groove, the pistons and cylinder are configured with an arrangement of flow passages providing damping at the end of the push-in and push-out strokes of the piston.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: September 30, 2008
    Assignee: Stabilus GmbH
    Inventors: Alexander Kneip, Mark Rössner