Patents Assigned to Grovag Grossventiltechnik A.G.
  • Seals for gas isolators
    Patent number: 4325411
    Abstract: A seal for a gas isolator which comprises a cantilever leaf spring to be attached to a fixed frame or a movable member of the isolator and a bias spring acting on the leaf spring, wherein the leaf spring is bent or curved when unstressed whereby in the sealing position of the seal the stress induced in the bias spring will be the same as that induced in the leaf spring where the bias spring and the leaf spring seal have the same section modulus per unit length of seal.
    Type: Grant
    Filed: September 15, 1980
    Date of Patent: April 20, 1982
    Assignee: Grovag Grossventiltechnik A.G.
    Inventor: Anton F. Squirrell
  • Bearing system for isolators
    Patent number: 4298235
    Abstract: A bearing system fitted around a shaft of an isolator, comprising a shaft seal fitted around the shaft, the shaft seal comprising at least one flexible annular metal disc attached to the isolator frame, and a bearing fitted around the shaft at a location spaced from the shaft seal, the bearing comprising at least three individually removable bearing segments secured to a bearing mounting by means of at least one flexible annular diaphragm.
    Type: Grant
    Filed: October 3, 1979
    Date of Patent: November 3, 1981
    Assignee: Grovag Grossventiltechnik A.G.
    Inventor: Anton F. Squirrell