Patents by Inventor Clemens Rensch

Clemens Rensch 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: 6802582
    Abstract: An inkjet printing system includes a configuration of nozzles, respectively having a nozzle chamber formed with a nozzle opening and provided with a respective piezoelectric element. A control device controls the piezoelectric elements. The control device has at least two signal paths switchable-on individually for each of the nozzles. An inkjet printing process uses at least part of the printing system.
    Type: Grant
    Filed: July 15, 2002
    Date of Patent: October 12, 2004
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Andreas Rupprecht, Clemens Rensch
  • Patent number: 6675957
    Abstract: A device for conveying printed products through a printing-related machine includes at least one endless conveyor belt running over deflecting rollers and having at least one printed product resting thereon during a conveying operation, and a rotating frictional element provided for driving the conveyor belt, the frictional element being in contact with the conveyor belt on a side thereof whereon the printed product is transported.
    Type: Grant
    Filed: November 2, 2001
    Date of Patent: January 13, 2004
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Martin Greive, Clemens Rensch, Andreas Rupprecht
  • Patent number: 6584899
    Abstract: Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool with the signals so as to obtain the processing geometries: and apparatus for performing the method.
    Type: Grant
    Filed: May 28, 1998
    Date of Patent: July 1, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rainer Buschulte, Clemens Rensch, Erich Zahn
  • Publication number: 20030011651
    Abstract: An inkjet printing system includes a configuration of nozzles, respectively having a nozzle chamber formed with a nozzle opening and provided with a respective piezoelectric element. A control device controls the piezoelectric elements. The control device has at least two signal paths switchable-on individually for each of the nozzles. An inkjet printing process uses at least part of the printing system.
    Type: Application
    Filed: July 15, 2002
    Publication date: January 16, 2003
    Inventors: Andreas Rupprecht, Clemens Rensch
  • Publication number: 20020092735
    Abstract: A device for conveying printed products through a printing-related machine includes at least one endless conveyor belt running over deflecting rollers and having at least one printed product resting thereon during a conveying operation, and a rotating frictional element provided for driving the conveyor belt, the frictional element being in contact with the conveyor belt on a side thereof whereon the printed product is transported.
    Type: Application
    Filed: November 2, 2001
    Publication date: July 18, 2002
    Inventors: Martin Greive, Clemens Rensch, Andreas Rupprecht
  • Patent number: 6176484
    Abstract: A device for transporting a sheet or a folded product by a transport belt includes at least one holder for holding the sheet or the folded product, the holder being operatable by an effect selected from the group consisting of magnetic and thermal effects.
    Type: Grant
    Filed: February 11, 1999
    Date of Patent: January 23, 2001
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Martin Greive, Clemens Rensch
  • Patent number: 6158734
    Abstract: A method for transporting a sheet on a ferromagnetic transport belt which includes spacing a first switchable retaining device adjacent the ferromagnetic transport belt. The first switchable retaining device is used to position a magnetic retaining element, for example, a permanent magnet, on a sheet that is adjacent the transport belt. The magnet is released from the first switchable retaining device and is fixedly adhered to the transport belt. The sheet, which is caught between the magnet and the transport belt, is fixed to the transport belt and is transported to a second switchable retaining element that removes the magnet. The invention also encompasses a device including a first switchable retaining device that cooperates with the transport belt in the manner described.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: December 12, 2000
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Martin Greive, Clemens Rensch
  • Patent number: 6119594
    Abstract: A method for regulating inking of a printing press. The method includes a first step of providing a picture taking device, a closed-loop control device, and a printed product having a surface with a printed image. A second step of printing a print control strip on the surface next to the printed image. A third step of deriving first picture signals from the print control strip and deriving second picture signals from the printed image with the picture taking device. A fourth step of using the closed-loop control device for deriving actual values representing inking of the print control strip from the first picture signals and comparing the actual values to desired values for deriving resultant comparison values. A fifth step of determining ink adjusting signals for controlling ink distribution devices from the resultant comparison values for varying inking of the print product until a desired value is reached during a printer tuning phase.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: September 19, 2000
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Helmut Kipphan, Wolfgang Geissler, Gerhard Fischer, Werner Huber, Bernd Kistler, Gerhard Loeffler, Anton Rodi, Harald Bucher, Clemens Rensch
  • Patent number: 6050192
    Abstract: A process and arrangement are disclosed for controlling or regulating operations carried out by a printing machine.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: April 18, 2000
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Helmut Kipphan, Wolfgang Geissler, Gerhard Fischer, Werner Huber, Bernd Kistler, Gerhard Loeffler, Anton Rodi, Harald Bucher, Clemens Rensch
  • Patent number: 5797320
    Abstract: Method for form-processing paper in a printing press by at least one processing tool and a computer includes converting digital data representing desired processing geometries into signals in the computer, and controlling the at least one processing tool with the signals so as to obtain the processing geometries; and apparatus for performing the method.
    Type: Grant
    Filed: November 29, 1995
    Date of Patent: August 25, 1998
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rainer Buschulte, Clemens Rensch, Erich Zahn
  • Patent number: 5724437
    Abstract: The invention relates to a device for inspecting the image and measuring the color of at least one printed product produced by a printing machine with at least one printing group. The purpose of the present invention is to teach a device permitting the quality and color of printed products to be assessed. To do this, the device consists of at least one imaging device providing the image data of the printed product and a computer device, in which the computer device detects all the image data of the printed products for image inspection and determines a measurement color assessment from the image data of at least one measuring point of the printed product.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: March 3, 1998
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Harald Bucher, Gerhard Fischer, Wolfgang Geissler, Werner Huber, Helmut Kipphan, Bernd Kistler, Gerhard Loeffler, Clemens Rensch