Patents Assigned to W.S. Shamban Europa A/S (W.S. Shamban & Company A/S)
  • Combination seal for sealing between two machine parts
    Patent number: 5156410
    Abstract: For sealing between two opposed surfaces of two machine elements (1, 2) a combination seal is provided to be fitted into an open groove (3) in one of the machine elements (2). The seal comprises an electomeric expansion ring (4, 5) at the bottom of the groove (3), an intermediate ring (6) made of a viscous-elastic material, e.g. PTFE and having a sealing surface (6b) to contact the mating machine element (2), and an elastomeric outer ring (8) fitted into a separate groove (7) in the sealing surface (6b) of the intermediate ring.
    Type: Grant
    Filed: January 4, 1991
    Date of Patent: October 20, 1992
    Assignees: W.S. Shamban Europa A/S (W.S. Shamban & Company A/S), Busak+Luyken GmbH & Co.
    Inventors: Jorgen Hom, Roy Edlund