Patents by Inventor Robert Stumpf

Robert Stumpf 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).

  • Coupling system with blocking device
    Patent number: 6530604
    Abstract: A coupling arrangement connects two elements with each other. The coupling arrangement includes a plug element and a bushing element which are configured in such a manner that they can be plugged together and locked in position by means of an expandable retaining ring. An axially movable release arrangement cooperates with the retaining ring in order to release the locking mechanism. The coupling arrangement is characterized in that the release arrangement (41) comprises a release sleeve (43), which can be closed with a cover (51) on its side facing away from the bushing element (5), and that a blocking device (55) is used to prevent an inadvertent release of the coupling.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: March 11, 2003
    Assignee: Aeroquip-Vickers International GmbH
    Inventors: Thomas Luft, Robert Stumpf, Johannes Schmid