Patents by Inventor David R. Sabo

David R. Sabo has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Rotatable vacuum flange
    Patent number: 5163712
    Abstract: A rotatable vacuum flange includes a flange ring having a recess, an insert mounted in the recess in the flange ring, the insert including a seal portion and being adapted for vacuum-tight attachment to a vacuum conduit, and a wire spring positioned between the flange ring and the insert. The wire spring retains the insert in the recess in the flange ring and permits rotation of the insert relative to the flange ring. The flange ring and the insert include grooves located in opposing alignment to receive the wire spring.
    Type: Grant
    Filed: October 28, 1991
    Date of Patent: November 17, 1992
    Assignee: Varian Associates, Inc.
    Inventors: David R. Sabo, Steven P. Young