Patents by Inventor Wolfgang Biesold

Wolfgang Biesold 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).

  • Patent number: 5228700
    Abstract: A contactless seal for sealing a fixed machine part with respect to a machine part rotating with respect thereto, is comprised of a centrifuge ring arranged on the rotatable part, the centrifuge ring forming an annular gap with a fixed part of the seal. In order that no liquid can be forced into the bearing, even with high speed shafts or the like, the centrifuge ring forms a preferably radially directed sealing gap with a fixed part of the seal, as well as a first chamber. This first chamber is connected to at least one further annular chamber by way of a narrow annular gap, and the latter chamber is bounded by the fixed parts of the seal. One of the parts of the seal has a catching channel for catching and leading away a liquid forced into the seal.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: July 20, 1993
    Assignee: SKF GmbH
    Inventors: Wolfgang Biesold, Sebastian Merz