Patents Assigned to Interseal Dipl. -Ing. Rolf Schmitz GmbH
  • Patent number: 6328312
    Abstract: Shaft seal for sealing between a shaft (2) and a machine housing (3). A seal and bearing casing (10) surrounds the shaft (2) to be sealed off and contains a rolling-contact bearing device (11) and a row of lip seals (13), the sealing lips of which engage the shaft surface (2) or a shaft protection sleeve (12). A compensation device (14) is connected, an the one hand, in a sealing manner to the casing (10) by means of a radially inner annular fastening part (23), and is connected, an the other band, in a sealing manner to the housing (3) by means of a radially outer annular fastening part (25), and has a flexible bridging portion (24) between the annular fastening parts (23, 25). The bridging portion (24) contains a first and a second elastomer ring seal (24a, 24b), which are arranged at an axial distance from one another in respective seat recesses (26, 27, 28) of the casing (10) and of the compensation device (14).
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: December 11, 2001
    Assignee: Interseal Dipl. -Ing. Rolf Schmitz GmbH
    Inventors: Rolf Schmitz, Jochen Busch