Patents by Inventor Ludwig Kantor

Ludwig Kantor 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).

  • Contactless seal
    Patent number: 4118040
    Abstract: The pressure chamber located in the sealing member is sub-divided by webs into a plurality of individual sub-chambers with restrictors between each sub-chamber and the barrier medium supply in order to obtain a uniform adjustment over the entire periphery of the gap between the sealing member and rotating part. Various types of means such as pressure-filled tubes are used to bias the sealing member from within a groove in the stationary part towards the rotatable part.
    Type: Grant
    Filed: August 26, 1976
    Date of Patent: October 3, 1978
    Assignee: Sulzer Brothers Limited
    Inventors: Alfred Christ, Helmut Lehmann, Ludwig Kantor, Helmut Miller