Patents Assigned to Societe de Propulsion-S.E.P.
  • Turbomolecular vacuum pump having a magnetic bearing-supported rotor
    Patent number: 4023920
    Abstract: A turbomolecular vacuum pump has a housing, a vertically oriented hollow pump rotor situated in the housing, and a vertically upwardly oriented stub shaft affixed to the housing and extending into the hollow pump rotor. The pump rotor is supported on the stub shaft by a magnetic axial bearing and at least one magnetic radial bearing, all disposed in the space surrounded by the hollow pump rotor.
    Type: Grant
    Filed: September 26, 1974
    Date of Patent: May 17, 1977
    Assignees: Leybold-Heraeus GmbH & Co. KG, Societe de Propulsion-S.E.P.
    Inventors: Werner Bachler, Rudiger Frank, Helmut Habermann, Maurice Brunet