Patents by Inventor Franz Kochannek

Franz Kochannek 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).

  • Vane-type compressor having resilient slot seals
    Patent number: 4618319
    Abstract: In a vane-type compressor, the slotted rotor includes resilient slot sealing means in the form of leaf springs. Each spring extends between consecutive slots and has curved end portions projecting into the slots and sealingly engaging opposite sides of corresponding vanes.
    Type: Grant
    Filed: November 1, 1985
    Date of Patent: October 21, 1986
    Assignee: Robert Bosch GmbH
    Inventor: Franz Kochannek