Patents by Inventor Oliver Frank Hahn

Oliver Frank Hahn 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: 8069786
    Abstract: Printing groups are each comprised of at least two cooperating cylinders, each of which is mounted in a bearing unit that radially displaces its associated cylinder. At least one of these bearing units is provided with an actuator which is controlled, or regulated by a control unit. An inking unit, which encompasses at least one ink application roller, is provided for each printing group. At least one of the cylinders of the printing group, and an ink application roller of the associated inking unit can optionally be placed against each other. A dampening unit, comprising at least one dampening fluid application roller, is also provided. At least one of the cylinders of the printing group and a dampening fluid application roller of the dampening unit are also optionally placed against each other. The at least one actuator for the bearing unit is remotely controlled and is embodied either as a hydraulic actuator or as a pneumatic actuator.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: December 6, 2011
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Georg Christel, Bernd Klaus Faist, Michael Heinz Fischer, Oliver Frank Hahn, Wolfgang Otto Reder, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7963225
    Abstract: A register in a printing machine is controlled and adjusted by providing at least one printing unit provided with at least two printing groups in the printing machine. Each printing group comprises a cylinder pair consisting of at least a forme cylinder and a transfer cylinder. The forme cylinder of the first printing group is phase shifted at a first amount for the register adjustment in a circumferential direction. The transfer cylinder of the first printing group is phase shifted in a second amount in the circumferential direction. The amount of the phase shift of the forme cylinder is different from the amount of phase shift of the transfer cylinder. The two amounts of the phase shifts are not equal to zero.
    Type: Grant
    Filed: April 19, 2006
    Date of Patent: June 21, 2011
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventor: Oliver Frank Hahn
  • Patent number: 7886663
    Abstract: Vibrations of a cylinder, which is a part of a web-processing machine, and particularly a printing machine, are dampened. A functional correlation is determined for a course of a force of a channel passage through a nip point defined by the cylinder and a second cylinder. The functional correlation is pre-defined up to a scaling factor determining the height as a time course for an actuator force time course and is stored in a control or a regulating device. The vibration, or an amplitude of the vibration is measured during the operation of at least part of the cylinder by the use of a sensor. A maximum vibration amplitude on the roll body of the cylinder is then calculated from the measuring value. The actuators are controlled by the control or regulating device according to the pre-defined actuator force time course.
    Type: Grant
    Filed: December 9, 2005
    Date of Patent: February 15, 2011
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek
  • Patent number: 7707935
    Abstract: A printing group of a printing machine is comprised of a pair of cylinders each having a circumference that corresponds essentially to a length of a section of a side to be printed. The effective generated surface of at least one of the cylinders comprises, at the most, one break in the circumferential direction. The surface forms, in the longitudinal direction, a plurality of adjacently arranged breaks which, when viewed in the circumferential direction, are arranged in a staggered manner with respect to each other.
    Type: Grant
    Filed: July 15, 2008
    Date of Patent: May 4, 2010
    Assignee: Koening & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7661360
    Abstract: A cylinder of a printing unit is received in a bearing structure that includes a bearing block having a rotary bearing and which is movable along an adjustment path in linear bearings. The bearing structure is configured as a bearing unit that can be mounted as a whole. The bearing structure thus includes the rotary bearing, the bearing block and the linear bearings which enable the relative movement of the bearing block.
    Type: Grant
    Filed: March 8, 2005
    Date of Patent: February 16, 2010
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek
  • Patent number: 7571677
    Abstract: A blanket is located on an outer surface of a roller, such as a printing unit roller. The blanket has an elastic and/or a compressive layer with a surface pressure that depends on the degree of the impression. The layer is selected so that a depending of the surface pressure on the impression has, at least in some areas, a slope of less than 700 (N/cm2)/mm.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: August 11, 2009
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek
  • Patent number: 7484458
    Abstract: A printing group of a printing machine is comprised of a pair of cylinders each having a circumference that corresponds essentially to a length of a section of a side to be printed. The effective generated surface of at least one of the cylinders comprises, at the most, one break in the circumferential direction. The surface forms, in the longitudinal direction, a plurality of adjacently arranged breaks which, when viewed in the circumferential direction, are arranged in a staggered manner with respect to each other.
    Type: Grant
    Filed: November 20, 2006
    Date of Patent: February 3, 2009
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Publication number: 20090020028
    Abstract: Printing groups are each comprised of at least two cooperating cylinders, each of which is mounted in a bearing unit that radially displaces its associated cylinder. At least one of these bearing units is provided with an actuator which is controlled, or regulated by a control unit. An inking unit, which encompasses at least one ink application roller, is provided for each printing group. At least one of the cylinders of the printing group, and an ink application roller of the associated inking unit can optionally be placed against each other. A dampening unit, comprising at least one dampening fluid application roller, is also provided. At least one of the cylinders of the printing group and a dampening fluid application roller of the dampening unit are also optionally placed against each other. The at least one actuator for the bearing unit is remotely controlled and is embodied either as a hydraulic actuator or as a pneumatic actuator.
    Type: Application
    Filed: April 20, 2006
    Publication date: January 22, 2009
    Inventors: Ralf Georg Christel, Bernd Klaus Faist, Michael Heinz Fischer, Oliver Frank Hahn, Wolfgang Otto Reder, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7469637
    Abstract: A printing group of a printing press has two forme cylinders, and two transfer cylinders which are assigned to the two forme cylinders and which, in a print-on position, cooperate to form a printing position. The forme cylinders and the transfer cylinders each have at least one groove or slit on their shell face which groove or slit is adapted to secure ends of a blanket or a dressing. The forme cylinders have circumferences which correspond to a section length of a printed page. Rotating shafts of the forme and transfer cylinders, when in the print-on position, are located in a common plane. The circumferential width of each of the grooves or slits, in the shell faces of the cylinder does not exceed 3 mm.
    Type: Grant
    Filed: June 30, 2006
    Date of Patent: December 30, 2008
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Publication number: 20080271621
    Abstract: A printing group of a printing machine is comprised of a pair of cylinders each having a circumference that corresponds essentially to a length of a section of a side to be printed. The effective generated surface of at least one of the cylinders comprises, at the most, one break in the circumferential direction. The surface forms, in the longitudinal direction, a plurality of adjacently arranged breaks which, when viewed in the circumferential direction, are arranged in a staggered manner with respect to each other.
    Type: Application
    Filed: July 15, 2008
    Publication date: November 6, 2008
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7213513
    Abstract: A printing group of a printing machine is comprised of at least two cylinders, a forme cylinder and a transfer cylinder. The transfer cylinder can be moved between a print-on position and a print-off position along a linear adjustment path. Both of the cylinders in the printing group can be driven mechanically to rotate independently of another printing group. This rotation is accomplished by at least one drive motor which is fixed on a frame of the printing machine.
    Type: Grant
    Filed: April 6, 2002
    Date of Patent: May 8, 2007
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7194953
    Abstract: A blanket is located on an outer surface of a roller, such as printing unit roller. The blanket has an elastic and/or a compressive layer with a surface pressure that depends on the degree of the impression. The layer is selected so that a depending of the surface pressure on the impression has, at least in some areas, a slope of less than 700 (N/cm2)/mm.
    Type: Grant
    Filed: April 9, 2003
    Date of Patent: March 27, 2007
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek
  • Patent number: 7140295
    Abstract: A printing group of a printing machine is comprised of a pair of cylinders each having a circumference that corresponds essentially to a length of a section of a side to be printed. The effective generated surface of at least one of the cylinders comprises, at the most, one break in the circumferential direction. The surface forms, in the longitudinal direction, a plurality of adjacently arranged breaks which, when viewed in the circumferential direction, are arranged in a staggered manner with respect to each other.
    Type: Grant
    Filed: April 6, 2002
    Date of Patent: November 28, 2006
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7055428
    Abstract: A characterizing number for a cylinder dressing having an elastic layer is determined. The characterizing number is then usable to select suitable geometries of rollers in a printing press. If the roller geometry is already known, the characterizing number facilitates the selection of a suitable dressing. The characterizing number characterizes the roll-off behavior of a dressing independently of a measuring device used to determine the number or an application in a particular printing group.
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 6, 2006
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Karl Erich Albert Schaschek, Ralf Christel, Oliver Frank Hahn, Bernd Kurt Masuch, Kurt Johannes Weschenfelder
  • Patent number: 7032510
    Abstract: At least two cylinders of a printing machine are arranged in the printing machine. An end journal of each of the cylinders is mounted either in or on a common insert. That common insert is, in turn, detachably located in, or on a lateral frame of the printing machine.
    Type: Grant
    Filed: July 31, 2002
    Date of Patent: April 25, 2006
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erich Albert Schaschek, Georg Schneider
  • Patent number: 7011026
    Abstract: A method for engaging and disengaging cylinders, and particularly cylinders which are disposed in a line, is disclosed. In addition to the displacement required to engage and to disengage the cylinders, steps are taken to at least reduce the relative tangential speed between the working outer surfaces of the cylinders that are to be engaged against one another or against an intermediate web. This is accomplished by the reduction of, or the impression upon the cylinders of a specific rotational speed.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: March 14, 2006
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Ralf Christel, Oliver Frank Hahn
  • Patent number: 6834585
    Abstract: A cylinder of a rotary printing machine has at least two axially extending cylinder channels on its peripheral surface. These two cylinder channels are offset circumferentially at an angle which is determined depending on the inherent bending frequency vibration fvib of the cylinder.
    Type: Grant
    Filed: June 14, 2002
    Date of Patent: December 28, 2004
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventor: Oliver Frank Hahn
  • Publication number: 20040231534
    Abstract: The invention relates to a method for engaging and disengaging cylinders, in particular cylinders (03; 07) that are disposed in a line. According to the invention, in addition to the displacement required for engaging and disengaging the cylinders, steps are taken to at least reduce the relative tangential speed between the working outer surfaces of the cylinders that are to be engaged against one another or against an intermediate web (08). This is achieved by the release of, or impression upon a specific rotation.
    Type: Application
    Filed: January 28, 2004
    Publication date: November 25, 2004
    Inventors: Ralf Christel, Oliver Frank Hahn
  • Publication number: 20040177778
    Abstract: At least two cylinders (02, 03, 07, 11) are arranged in a printing machine, whereby a respective end journal (23, 51) of the cylinders is mounted in or on a common insert (28), which in turn is detachably located in or on a lateral frame (27) of said printing machine.
    Type: Application
    Filed: January 16, 2004
    Publication date: September 16, 2004
    Inventors: Ralf Christel, Oliver Frank Hahn, Karl Erik Albert Schaschek, Georg Schneider
  • Publication number: 20040168594
    Abstract: In connection with a method for characterization of a layer, a method and a device for determining a characteristic number, as well as a method for selecting a suitable dressing on rollers, or suitable geometries of rollers of a printing press, a characterizing number for characterizing a layer is formed, or employed, which characterizes the roll-off behavior independently of a measuring device or an application in a particular printing group.
    Type: Application
    Filed: April 23, 2004
    Publication date: September 2, 2004
    Inventors: Karl Erich Albert Schaschek, Ralf Christel, Oliver Frank Hahn, Bernd Kurt Masuch, Kurt Johannes Weschenfelder