Patents by Inventor Rolf-Jurgen Kramer

Rolf-Jurgen Kramer 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).

  • Overload safety on clutches
    Patent number: 4610340
    Abstract: An overload safety for clutches of the type having driven and drive elements arranged concentrically to each other and having a driver body which cooperates with a spring and is provided in the space between the elements. In order to obtain a small structural form which is simple to manufacture while of dependable operation, the disengaged position is obtained by the bending out of a resiliency section which crosses the space between the elements.
    Type: Grant
    Filed: October 31, 1983
    Date of Patent: September 9, 1986
    Assignee: Vorwerk & Co. Interholding GmbH
    Inventors: Ludger Helmes, Rolf-Jurgen Kramer