Patents by Inventor Horst-Gunter Rissmann

Horst-Gunter Rissmann 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: 4572041
    Abstract: A torque limiting wrench is provided having an input member and an output member coupled to each other so as to limit the transmitted torque therebetween. The coupling is provided by spring rods supported in the output member surrounding the input member, the spring rods being arranged along a pitch circle disposed concentric with respect to the input member and, in the tension-free state, disposed within the zone of axial catches arranged on the circumference of a collar provided on the input member. When a sufficient input torque is admitted, the spring rods are bent outwardly by the flanks of the catches and out of the range of the catches when the predetermined torque is reached.
    Type: Grant
    Filed: May 10, 1985
    Date of Patent: February 25, 1986
    Inventor: Horst-Gunter Rissmann