Patents by Inventor Rolf KUENDGEN

Rolf KUENDGEN 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: 11597201
    Abstract: A method and device change printing plates on a cylinder. The method includes opening a first clamping device and releasing a leading edge of a first printing plate and opening a second clamping device and releasing a trailing edge of the first printing plate. The first and second clamping devices are both opened before a first rotation process of a cylinder. The cylinder is rotated during the first rotation process in a first direction to dismount the first printing plate from a circumferential surface of the cylinder. The cylinder is rotated in a second rotation process in an opposite second direction to mount a second printing plate replacing the first printing plate to the circumferential surface of the cylinder. Because the first clamping device and the second clamping device are both opened before the first rotation of the cylinder, the set-up period required for a printing plate change is reduced.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: March 7, 2023
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rolf Kuendgen, Rudi Stellberger, Dirk Schoenmann
  • Publication number: 20210347166
    Abstract: A method and device change printing plates on a cylinder. The method includes opening a first clamping device and releasing a leading edge of a first printing plate and opening a second clamping device and releasing a trailing edge of the first printing plate. The first and second clamping devices are both opened before a first rotation process of a cylinder. The cylinder is rotated during the first rotation process in a first direction to dismount the first printing plate from a circumferential surface of the cylinder. The cylinder is rotated in a second rotation process in an opposite second direction to mount a second printing plate replacing the first printing plate to the circumferential surface of the cylinder. Because the first clamping device and the second clamping device are both opened before the first rotation of the cylinder, the set-up period required for a printing plate change is reduced.
    Type: Application
    Filed: July 21, 2021
    Publication date: November 11, 2021
    Inventors: ROLF KUENDGEN, RUDI STELLBERGER, DIRK SCHOENMANN
  • Patent number: 11110700
    Abstract: A method and device change printing plates on a cylinder. The method includes opening a first clamping device and releasing a leading edge of a first printing plate and opening a second clamping device and releasing a trailing edge of the first printing plate. The first and second clamping devices are both opened before a first rotation process of a cylinder. The cylinder is rotated during the first rotation process in a first direction to dismount the first printing plate from a circumferential surface of the cylinder. The cylinder is rotated in a second rotation process in an opposite second direction to mount a second printing plate replacing the first printing plate to the circumferential surface of the cylinder. Because the first clamping device and the second clamping device are both opened before the first rotation of the cylinder, the set-up period required for a printing plate change is reduced.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: September 7, 2021
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rolf Kuendgen, Rudi Stellberger, Dirk Schoenmann
  • Patent number: 10434676
    Abstract: A rotary die-cutter for cutting a piece of material or scrap out of a printing material such as paper, includes a die-cutting cylinder and an associated impression cylinder. The die-cutting cylinder is connected to a vacuum source. A die-cutting tool which is disposed on the die-cutting cylinder includes at least one die-cutting knife having a closed form and a suction opening within the closed form. A cylinder cover is disposed on the impression cylinder. At least one raised or recessed first guide element is disposed within the closed form for guiding suction air and/or at least one recessed or raised second guide element is disposed in the cylinder cover for guiding air. The scrap to be removed from the printing material can therefore be transported with the die-cutting cylinder and ejected from the die-cutting tool or knife in a trouble-free way.
    Type: Grant
    Filed: July 25, 2018
    Date of Patent: October 8, 2019
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rolf Kuendgen, Rolf Grittmann, Philipp Doley, Benjamin Kreth, Reinhold Hiller
  • Publication number: 20190255835
    Abstract: A method and device change printing plates on a cylinder. The method includes opening a first clamping device and releasing a leading edge of a first printing plate and opening a second clamping device and releasing a trailing edge of the first printing plate. The first and second clamping devices are both opened before a first rotation process of a cylinder. The cylinder is rotated during the first rotation process in a first direction to dismount the first printing plate from a circumferential surface of the cylinder. The cylinder is rotated in a second rotation process in an opposite second direction to mount a second printing plate replacing the first printing plate to the circumferential surface of the cylinder. Because the first clamping device and the second clamping device are both opened before the first rotation of the cylinder, the set-up period required for a printing plate change is reduced.
    Type: Application
    Filed: January 31, 2019
    Publication date: August 22, 2019
    Inventors: ROLF KUENDGEN, RUDI STELLBERGER, DIRK SCHOENMANN
  • Publication number: 20190039257
    Abstract: A rotary die-cutter for cutting a piece of material or scrap out of a printing material such as paper, includes a die-cutting cylinder and an associated impression cylinder. The die-cutting cylinder is connected to a vacuum source. A die-cutting tool which is disposed on the die-cutting cylinder includes at least one die-cutting knife having a closed form and a suction opening within the closed form. A cylinder cover is disposed on the impression cylinder. At least one raised or recessed first guide element is disposed within the closed form for guiding suction air and/or at least one recessed or raised second guide element is disposed in the cylinder cover for guiding air. The scrap to be removed from the printing material can therefore be transported with the die-cutting cylinder and ejected from the die-cutting tool or knife in a trouble-free way.
    Type: Application
    Filed: July 25, 2018
    Publication date: February 7, 2019
    Inventors: ROLF KUENDGEN, ROLF GRITTMANN, PHILIPP DOLEY, BENJAMIN KRETH, REINHOLD HILLER
  • Patent number: 9996775
    Abstract: A method for configuring the further processing of printing substrates in a digital printing machine includes modifying settings for configuring the further processing while the machine is in operation. The settings of the further processing are created by using a configuration program running on a control unit of the digital printing machine. The modified settings have an effect on at least one region to be further processed on the printing substrate and the settings are printed onto the printing substrate so as to be allocated to a corresponding region to be further processed.
    Type: Grant
    Filed: April 25, 2016
    Date of Patent: June 12, 2018
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Bernd Sitzmann, Rolf Kuendgen, Patrick Roth, Rainer Hofmann, Michael Postels
  • Patent number: 9937734
    Abstract: A method for the indirect application of printing liquid onto a printing material provides an intermediate carrier, preferably a circulating belt, a liquid conditioning medium including a first substance applied onto the intermediate carrier and a printing liquid, in particular an inkjet ink, including a second substance applied onto the conditioning medium on the intermediate carrier. The printing liquid is situated as droplets or a layer substantially on the conditioning medium and the droplets or the layer form a contact region on their underside with the conditioning medium. The printing liquid is heated, preferably by way of a dryer and the printing liquid is transferred from the intermediate carrier onto the printing material.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: April 10, 2018
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Bernard Beier, Martin Greive, Peter Hachmann, Axel Hauck, Rolf Kuendgen, Albert Maul, Rolf Mueller, Heiner Pitz, Achim Scheurer, Matthias Schloerholz, Michael Schwandt
  • Publication number: 20160314384
    Abstract: A method for configuring the further processing of printing substrates in a digital printing machine includes modifying settings for configuring the further processing while the machine is in operation. The settings of the further processing are created by using a configuration program running on a control unit of the digital printing machine. The modified settings have an effect on at least one region to be further processed on the printing substrate and the settings are printed onto the printing substrate so as to be allocated to a corresponding region to be further processed.
    Type: Application
    Filed: April 25, 2016
    Publication date: October 27, 2016
    Inventors: BERND SITZMANN, ROLF KUENDGEN, PATRICK ROTH, RAINER HOFMANN, MICHAEL POSTELS
  • Patent number: 9365030
    Abstract: A method for setting up printing presses includes providing cylinders, a drive for at least one cylinder, a register adjustment device for at least one cylinder and at least one control unit. During set-up operations on the printing press, the control unit actuates the register adjustment device while the printing press is being accelerated or decelerated or while washing operations in the printing press are being carried out and while a production run is switched off and cylinders are rotating. A printing press carrying out the method is also provided.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: June 14, 2016
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Peter Heiler, Rolf Kuendgen, Gerd Merkel, Rudi Stellberger
  • Publication number: 20160159110
    Abstract: A method for the indirect application of printing liquid onto a printing material provides an intermediate carrier, preferably a circulating belt, a liquid conditioning medium including a first substance applied onto the intermediate carrier and a printing liquid, in particular an inkjet ink, including a second substance applied onto the conditioning medium on the intermediate carrier. The printing liquid is situated as droplets or a layer substantially on the conditioning medium and the droplets or the layer form a contact region on their underside with the conditioning medium. The printing liquid is heated, preferably by way of a dryer and the printing liquid is transferred from the intermediate carrier onto the printing material.
    Type: Application
    Filed: February 18, 2016
    Publication date: June 9, 2016
    Inventors: BERNARD BEIER, MARTIN GREIVE, PETER HACHMANN, AXEL HAUCK, ROLF KUENDGEN, ALBERT MAUL, ROLF MUELLER, HEINER PITZ, ACHIM SCHEURER, MATTHIAS SCHLOERHOLZ, MICHAEL SCHWANDT
  • Publication number: 20150097906
    Abstract: A method for the indirect application of printing liquid onto a printing material provides an intermediate carrier, preferably a circulating belt, a liquid conditioning medium including a first substance applied onto the intermediate carrier and a printing liquid, in particular an inkjet ink, including a second substance applied onto the conditioning medium on the intermediate carrier. The printing liquid is situated as droplets or a layer substantially on the conditioning medium and the droplets or the layer form a contact region on their underside with the conditioning medium. The printing liquid is heated, preferably by way of a dryer and the printing liquid is transferred from the intermediate carrier onto the printing material.
    Type: Application
    Filed: December 15, 2014
    Publication date: April 9, 2015
    Inventors: BERNARD BEIER, MARTIN GREIVE, PETER HACHMANN, AXEL HAUCK, ROLF KUENDGEN, ALBERT MAUL, ROLF MUELLER, HEINER PITZ, ACHIM SCHEURER, MATTHIAS SCHOERLHOLZ, MICHAEL SCHWANDT
  • Publication number: 20140069288
    Abstract: A method for setting up printing presses includes providing cylinders, a drive for at least one cylinder, a register adjustment device for at least one cylinder and at least one control unit. During set-up operations on the printing press, the control unit actuates the register adjustment device while the printing press is being accelerated or decelerated or while washing operations in the printing press are being carried out and while a production run is switched off and cylinders are rotating. A printing press carrying out the method is also provided.
    Type: Application
    Filed: September 10, 2013
    Publication date: March 13, 2014
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: Peter HEILER, Rolf KUENDGEN, Gerd MERKEL, Rudi STELLBERGER