Patents by Inventor Hans-Georg Hengelhaupt

Hans-Georg Hengelhaupt 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).

  • Constant rate ribbon winding mechanism
    Patent number: 4168127
    Abstract: A mechanism for winding a ribbon on a take-up spool effects a constant winding rate as the diameter of the wound ribbon on the spool increases. A wrap spring intermittently drives a gear which rotates the spool in a stepwise fashion, the free end of the wrap spring being reciprocated by the stroke of an actuating arm. The amount of ribbon which is wound on the spool is sensed by a diameter sensor, which sensor controls the point on the free end of the wrap spring which is contacted by the actuating arm.
    Type: Grant
    Filed: October 17, 1977
    Date of Patent: September 18, 1979
    Assignee: Triumph Werke Nurnberg A.G.
    Inventor: Hans-Georg Hengelhaupt