Patents by Inventor Iris Hetzel

Iris Hetzel 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: 5078669
    Abstract: A transfer apparatus for folding boxes including suction heads disposed on a carrier and for holding the folding boxes by negative pressure. To enable adjusting the suction heads to a format of folding boxes to be manipulated, the suction heads have a plurality of cup-shaped suction devices, individual ones of which can be adjusted out of the working position into a position of repose and which can be blocked off from the negative pressure. To this end, the adjustable suction devices are mounted on necks displaceable in carriers, and the necks can be arrested in two positions.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: January 7, 1992
    Assignee: Robert Bosch GmbH
    Inventors: Walter Dietrich, Iris Hetzel, Eberhard Krieger