Patents by Inventor Ulrich Reinfrank

Ulrich Reinfrank 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).

  • Mechanical face seal device
    Patent number: 6220601
    Abstract: A mechanical face seal device includes a bellows assembly comprising a bellows member of resilient material having axially spaced mounting portions interconnected by an intermediate foldable portion, one of said mounting portions being adapted to be fixed relative to a rotary component whilst the other is in torque transferring relationship with a rotary annular seal member, and a biasing means for diasing the rotary annular seal member against the stationary annular seal member. An essentially stiff support member having a predetermined radial dimension is provided for axially supporting the rotary annular seal member and is itself supported by the bellows member.
    Type: Grant
    Filed: January 24, 2000
    Date of Patent: April 24, 2001
    Assignee: Feodor Burgmann Dichtungswerke GmbH & Co.
    Inventors: Thomas Keller, Ulrich Reinfrank, Wolfgang Ries, Reinhard Svejkovsky, Robert Woppowa, Dieter Ziegenbein