Patents by Inventor Hartwig Huelz

Hartwig Huelz 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).

  • Device for detecting edges of sheet-shaped materials
    Patent number: 7106458
    Abstract: A device for detecting edges of sheet-shaped print materials (1), especially of transparencies, that are moved along a transport path through a sheet-processing machine has a beam transmitter (31) and a beam receiver (32), whereby beam transmitter (31) and beam receiver (32) are mounted on different sides of the transport path in such a way that the beam path forms an acute angle to the surface of the sheet-shaped print material (1). Electronics (36) evaluate the beam received at the beam receiver (32), whereby the beam receiver (32) is at a lesser distance to the transport path in comparison to the beam transmitter (31).
    Type: Grant
    Filed: December 13, 2002
    Date of Patent: September 12, 2006
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Konrad Langbein, Jochen Graeber, Hartwig Huelz
  • Device for detecting edges of sheet-shaped materials
    Publication number: 20030151752
    Abstract: A device for detecting edges of sheet-shaped print materials (1), especially of transparencies, that are moved along a transport path through a sheet-processing machine has a beam transmitter (31) and a beam receiver (32), whereby beam transmitter (31) and beam receiver (32) are mounted on different sides of the transport path in such a way that the beam path forms an acute angle to the surface of the sheet-shaped print material (1). Electronics (36) evaluate the beam received at the beam receiver (32), whereby the beam receiver (32) is at a lesser distance to the transport path in comparison to the beam transmitter (31).
    Type: Application
    Filed: December 13, 2002
    Publication date: August 14, 2003
    Inventors: Konrad Langbein, Jochen Graeber, Hartwig Huelz