Patents by Inventor Rudolf F. Baumle

Rudolf F. Baumle 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).

  • Elastomeric seal
    Patent number: 3940155
    Abstract: A shaft seal for a slowly rotating shaft operating in a high pressure environment where the seal is formed of an elastomeric material providing annular rings and grooves on the internal diameter thereof adapted to engage the rotating shaft and a generally cylindrical exterior surface to engage a metal cup and/or the housing for the shaft. The end of the seal exposed to high pressure has an annular groove therein to form inner and outer annular lips which sealingly engage the shaft and the housing, respectively.
    Type: Grant
    Filed: September 20, 1974
    Date of Patent: February 24, 1976
    Assignee: Borg-Warner Corporation
    Inventor: Rudolf F. Baumle