Patents by Inventor Karl-Heinz Grell

Karl-Heinz Grell 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).

  • Pneumatic sealing apparatus
    Patent number: 4535885
    Abstract: The opening and closing of a sealing arrangement for the connection of a cylindrical body with an inside flange elastically deformed during opening, is controlled by a magnetic operating device, the axially opposite parts of which are disposed on a holding body attached to the sealing arrangement and along a control path past which the sealing arrangement moves.
    Type: Grant
    Filed: May 11, 1983
    Date of Patent: August 20, 1985
    Assignee: B.A.T. Cigaretten-Fabriken GmbH
    Inventors: Karl-Heinz Grell, Heinz Krappitz