Patents by Inventor Erich Zahn

Erich Zahn 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: 6925936
    Abstract: A method of using a printing plate includes, in a first step, setting an image on the printing plate in an imaging machine, while holding the printing plate firmly on a magnetic cylinder of the imaging machine during the imaging process, and in a second step, printing in a printing machine with the printing plate having the image set in this manner; and an imaging machine and a printing machine for performing the method.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: August 9, 2005
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Oliver Gottschalt, Michael Kohlmann, Erich Zahn
  • Patent number: 6851912
    Abstract: An apparatus for transferring a sheet stack which is located on a first pallet to a second, different pallet. The apparatus is distinguished by a number of horizontal carrying rods which are disposed like a rake, are intended to engage temporarily under the sheet stack, can be moved in their longitudinal direction and in a vertical direction while the respective ends of the carrying rods are supported. The carrying rods are longer in length than a respective extent of both pallets in a direction of the carrying rods.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: February 8, 2005
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Erich Zahn
  • Patent number: 6663041
    Abstract: A device for storing, transporting and feeding a roll-forming web of printing material for a machine for processing the material. The device has a housing that surrounds and includes a receptacle for the roll. The housing is manipulatable in a manner analogous to a pallet, and is disposed for receiving and surrounding the roll, from which the web of printing material is unwindable.
    Type: Grant
    Filed: March 26, 2001
    Date of Patent: December 16, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Rainer Buschulte, Erich Zahn
  • Patent number: 6655280
    Abstract: An inking unit in a printing machine includes a screen roller and an ink metering system subdivided into inking zones and assigned to the screen roller for performing zonal ink metering on the screen roller, the ink metering system having metering elements disposed so as to be movable relative to one another.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: December 2, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Alexander Cartellieri, Oliver Gottschalt, Michael Kohlmann, Erich Zahn
  • Patent number: 6616114
    Abstract: A flexible bearing bar includes a flexurally soft tensile member carrying, on one side thereof, a multiplicity of compressive elements disposed successively in series and formed with respective contact surfaces, said tensile member being supportable on two supports, and said contact surfaces being subjectible to a load acting between said supports, from said compressive elements in a direction towards said tensile member for keeping said contact surfaces, respectively, in contact with one another.
    Type: Grant
    Filed: July 5, 2001
    Date of Patent: September 9, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Erich Zahn, Michael Bantlin, Hans Butterfass
  • 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
  • Patent number: 6443058
    Abstract: Product is printed in a combined printing process with two ink systems. The printing material is first printed with a solvent-based or radiation-curing ink and then with at least one offset-typical ink. The printing machine for the inline implementation of the novel process is a hybrid press, having a flexo printing unit and a downstream offset printing unit. A UV, electron-beam or air-stream dryer is integrated into the flexo printing unit, or a UV, electron-beam or air-stream drying unit is arranged between the flexo printing unit and the offset printing unit.
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: September 3, 2002
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: Peter Stadler, Erich Zahn, Karl-Heinz Filsinger, Klaus Sauer
  • Publication number: 20020092434
    Abstract: An inking unit in a printing machine includes a screen roller and an ink metering system subdivided into inking zones and assigned to the screen roller for performing zonal ink metering on the screen roller, the ink metering system having metering elements disposed so as to be movable relative to one another.
    Type: Application
    Filed: January 14, 2002
    Publication date: July 18, 2002
    Inventors: Alexander Cartellieri, Oliver Gottschalt, Michael Kohlmann, Erich Zahn
  • Publication number: 20020060398
    Abstract: A flexible bearing bar includes a flexurally soft tensile member carrying, on one side thereof, a multiplicity of compressive elements disposed successively in series and formed with respective contact surfaces, said tensile member being supportable on two supports, and said contact surfaces being subjectible to a load acting between said supports, from said compressive elements in a direction towards said tensile member for keeping said contact surfaces, respectively, in contact with one another.
    Type: Application
    Filed: July 5, 2001
    Publication date: May 23, 2002
    Inventors: Erich Zahn, Michael Bantlin, Hans ButterfaB
  • Publication number: 20010047734
    Abstract: A method of using a printing plate includes, in a first step, setting an image on the printing plate in an imaging machine, while holding the printing plate firmly on a magnetic cylinder of the imaging machine during the imaging process, and in a second step, printing in a printing machine with the printing plate having the image set in this manner; and an imaging machine and a printing machine for performing the method.
    Type: Application
    Filed: April 12, 2001
    Publication date: December 6, 2001
    Inventors: Oliver Gottschalt, Michael Kohlmann, Erich Zahn
  • Publication number: 20010032900
    Abstract: A device for storing, transporting and feeding a roll-forming web of printing material for a machine for processing it, includes a receptacle for the roll, and a housing manipulatable in a manner analogous for a pallet, the housing being disposed for receiving and surrounding the roll, from which the web of printing material is unwindable.
    Type: Application
    Filed: March 26, 2001
    Publication date: October 25, 2001
    Inventors: Rainer Buschulte, Erich Zahn
  • Patent number: 6149148
    Abstract: A hurdle board assembly for separating sheet piles in a delivery of a sheet-fed printing machine includes a hurdle board. A plurality of spacer elements are connected to the hurdle board at locations in the vicinity of the border of one surface of the hurdle board. The spacer elements are respectively movable between a condition wherein they are retracted into the hurdle board and a condition wherein they extend vertically from the hurdle board. Respective prestressing devices are provided for prestressing the spacer elements, respectively, in a direction in the condition wherein the spacer elements, respectively, extend from the hurdle board. Respective locking devices are provided for securing the spacer elements, respectively, in the retracted condition. The locking devices are deactivatable from a side of the hurdle board so as to release the spacer elements.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: November 21, 2000
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventors: Erich Zahn, Rainer Klenk, Richard Mack
  • 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: 5520504
    Abstract: The combination of a sheet-processing machine and a transport system for sheet piles includes a device for passing sheets through the sheet-processing machine in a given direction of travel; a pile support assigned to the machine; a device for carrying the pile support; and a device for raising and lowering the carrying device together with the pile support to upper and lower levels, respectively; the carrying device including a first transport device for moving the pile support horizontally with respect to the carrying device; second transport device disposed on both sides of the sheet processing machine and assigned to the first transport device for moving the pile support horizontally; the first transport device of the carrying device in the lower-level position of the carrying device and the second transport device assigned to the first transport device forming a conveyor section composed of aligned conveyor section parts for transporting a pile support in a transport direction transverse to the given dir
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: May 28, 1996
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Erich Zahn