Patents Examined by Enodi Peavey
  • Patent number: 6322080
    Abstract: Sealing arrangement for a piston rod with a circular cross-section, comprising a one-piece sealing ring with a parting joint and compensation clearance as well as a cover ring surrounding the sealing ring in the peripheral direction, with the sealing ring having a section which extends in the peripheral direction of the sealing ring at at one end and forms an overlapping ring joint together with the other end of the sealing ring, and with the sealing ring having a radial wall thickness decreasing towards the parting joint. This arrangement has an excellent sealing action in a direction axial to the arrangement.
    Type: Grant
    Filed: December 12, 1997
    Date of Patent: November 27, 2001
    Assignee: Maschinenfabrik Sulzer-Burckhardt AG
    Inventor: Norbert Feistel