Patents Assigned to MAN Roland Druckmaschinen AG
  • Aligning apparatus for printing units of printing presses
    Patent number: 6832555
    Abstract: An aligning apparatus for heavy loads, in particular a printing unit, includes at least one support plate, which is rotatably mounted on a base plate screwed to an erection surface and can be positioned on the base plate with regard to its horizontal position by means of adjusting screws. Each support plate interacts with a vertical adjusting screw which is provided for adjusting the vertical position of the printing unit and can be fixed to the printing unit, each vertical adjusting screw being designed with a spherical end which is supported on the plate in a spherical recess designed with little play or as a locating fit.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: December 21, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Josef Göttling, Thomas Hartmann, Godber Petersen
  • Method and device for washing a rubber blanket
    Publication number: 20040250836
    Abstract: During a washing cycle of a rubber blanket on a blanket cylinder some revolutions of the blanket cylinder are initially performed during which the cleaning element is lifted off the blanket cylinder temporarily when the clamping channel passes under the cleaning element.
    Type: Application
    Filed: November 19, 2003
    Publication date: December 16, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Gunther Koppelkamm, Klaus Topfer
  • Cutting cylinder for crosscutting a printing material web in a rotary press
    Publication number: 20040254055
    Abstract: A cutting cylinder is mounted such that it can rotate and be driven and is provided with four cutting blades on its circumference, which blades divide the circumferential length into four sections arranged on the circumference of the cutting cylinder.
    Type: Application
    Filed: June 1, 2004
    Publication date: December 16, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Hans-Eckhard Mamberer, Heinz Roettger, Ulrich Rohrhirsch, Franz Rumesz
  • Method and apparatus for processing a printing ink containing inhibitors and oligomers in a printing unit
    Patent number: 6829996
    Abstract: A method and apparatus for processing a printing ink containing inhibitors and oligomers in a printing unit of a rotary printing machine in which the drying times of the printing ink on the printing material is shortened and the printing quality improved. In the illustrated embodiments, the printing unit includes two cylinders that form a press nip in which the printing ink is applied to passing printing material, and a catalyst mixture is applied to the printing material either by one of the cylinders or through an applicator device downstream of said press nip. A heating device is located in the conveying direction immediately downstream of the press nip or the applicator device.
    Type: Grant
    Filed: October 3, 2002
    Date of Patent: December 14, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Ulrich Jung, Thomas Walther
  • Plate cylinder of a printing press
    Publication number: 20040237819
    Abstract: A plate cylinder of a printing press, with a tensioning channel which extends in the axial direction, in which means for fixing the plate ends of at least one printing plate which can be positioned on the plate cylinder are arranged. The leading plate end can be fixed by a holding element against a contact surface by means of a tensioning rail which can be moved in the tensioning channel. After that, and after the plate cylinder has been rotated, it is then possible to hook the trailing plate end on the extended tensioning rail. After that, it is possible to draw the tensioning rail back in again to tension the trailing plate end.
    Type: Application
    Filed: October 7, 2003
    Publication date: December 2, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventor: Gunter Koppelkamm
  • Variable folder
    Patent number: 6820869
    Abstract: In order to provide a variable folder which allows smearing-free operation, the cutting blade of an upstream cross-cutting arrangement is provided with recesses, which leave behind residual crosspieces in the strand which is to be cut, and arranged in the product-directing region, between the cross-cutting arrangement and a collecting cylinder, are accelerating and tearing-off cams which grip the incoming product and tear it off from the strand at the residual crosspieces.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: November 23, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Klaus-Ulrich Lange, Helmut Schnell
  • Rubber cylinder sleeve for offset printing presses
    Patent number: 6799512
    Abstract: A rubber cylinder sleeve for an offset printing press includes an inner carrier sleeve that has a circumferential and an axial direction. The carrier is expandable outwardly by an application of compressed air from the interior. The rubber cylinder sleeve also includes a single rubber layer having an inner surface disposed on the inner carrier sleeve and an outer surface for contacting the printing plate. The single rubber layer includes a plurality of compressible elements for increasing the compressibility of the single rubber layer and a plurality of filaments for increasing the stiffness of the single rubber layer. The compressible elements and the filaments are disposed at a distance from the outer surface.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: October 5, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Eduard Hoffmann, Georg Schmid, Stefan Albrecht
  • Process for producing a chemical-resistant protective layer for a rotary body having a base body made from fiber-reinforced plastic
    Patent number: 6797331
    Abstract: A fiber-reinforced plastic base body is first of all provided with a coating of hard rubber or thermoplastic having a dispersed metal or ceramic content of 5% by volume to 80% by volume, and the coating is ground down to provide a smooth surface In a further step a layer of metal and/or ceramic, which has a printing function, is applied to the smooth surface, preferably by thermal spraying.
    Type: Grant
    Filed: June 4, 2002
    Date of Patent: September 28, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Josef Singler, Martin Endisch, Gerhard Johner, Markus Kirst
  • Method for imaging and erasing an erasable printing form
    Patent number: 6796237
    Abstract: A method for imaging a printing form in which the printing form is charged on its entire surface and is coated on its entire surface with particles, in particular toner particles, which bear the opposite charge. The layer formed by the particles is then fixed in accordance with the image by a beam, in particular a laser beam, and especially by infrared radiation, on the surface of the printing form or ablated in accordance with the image. Thereupon, the unfixed portions of the layer are removed or the non-ablated portions are fixed by full-surface heat treatment.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: September 28, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Alfons Schuster, Michael Schönert, Alfred Hirt, Robert Weiss
  • Apparatus for a stable machine run on printing units of a rotary press for operation with part-width printing material
    Publication number: 20040182263
    Abstract: A non-flowing protective medium is applied in a finely distributed manner through a metering nozzle by means of blown air to the non-printing regions of at least one roll of an inking unit or damping unit and/or the non-printing regions of at least one transfer cylinder or forme cylinder, forming a thin-layer protective film. Ink is thereby prevented from drying out in non-printing regions of the rolls and cylinders of the printing unit, and the tack is thus kept at a low level, in order to reduce the risk of web breaks.
    Type: Application
    Filed: January 28, 2004
    Publication date: September 23, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Georg Schmid, Martin Endisch, Josef Singler, Konrad Brummer
  • Apparatus and method for storing sleeves for rotary printing machines
    Patent number: 6792857
    Abstract: An apparatus and method for storing rubber-covered cylinder sleeves for offset printing for rotary printing machines permits an identified rubber-covered cylinder sleeve to be found easily. The apparatus is equipped with an electronic memory device into which, for each rubber-covered cylinder sleeve, characteristic data can be entered and stored. As the rubber-covered cylinder sleeve is introduced into a storage, the characteristic data from the rubber-covered cylinder sleeve are read into the memory device, and the rubber-covered cylinder sleeve can be removed from the storage apparatus in accordance with predefined data.
    Type: Grant
    Filed: October 9, 2001
    Date of Patent: September 21, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Christian Sameit, Georg Schmid
  • Apparatus for handling sleeves on press cylinders
    Patent number: 6789479
    Abstract: An apparatus for mounting a printing sleeve on a press cylinder includes an inherently stiff annular holding element having an inner shape which is matched to the outer shape of the sleeve, and mutually facing ends defining a slit having a width. At least one clamp urges the ends toward each other to form a butt joint, so that the holding element can clamp the sleeve with a clamping force which is limited by the width of the slit. A device is provided for expanding the holding element so that the clamping force on the sleeve can be released.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: September 14, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Josef Göttling, Thomas Hartmann
  • Dosing system for inking up rollers in a printing machine
    Patent number: 6786152
    Abstract: An ink metering system for a roller train in a printing machine which in the illustrated embodiment includes a fountain roller and a downstream train of rollers communicating with a plate or form cylinder of the printing press. One or more plating devices (12) are provided which each have a plate-like element (19) adjustably positionable with respect to a respective roller for leveling ink on the surface of the roller before or after passage through a contact zone with an adjacent roller in which ink is pulled off and separated between the rollers. The plating devices are relatively simple in construction and operation and provide stable ink guidance on the roller surfaces that noticeably improves print quality.
    Type: Grant
    Filed: February 12, 2003
    Date of Patent: September 7, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Hubert Zschetzsche, Peter Hummel, Robert Ortner
  • Drive for a cylinder of a rotary press
    Publication number: 20040168589
    Abstract: In the drive for cylinders of a rotary press which operate together, one of the cylinders includes a pair of cylinder segments which can be driven and rotated independently of one another by respective electric motors. The further cylinder is driven by a dedicated electric motor.
    Type: Application
    Filed: November 24, 2003
    Publication date: September 2, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Nils-Hendric Schall, Andreas Stieler
  • Printing press dryer having an excimer radiant heater
    Publication number: 20040168596
    Abstract: A printing press dryer having an excimer radiant heater adapted for high energy output and compact mounting within the printing press. The heater includes a housing (1) within which a plurality of radiant tubes (2,3) are arranged in parallel relation to each other, and the radiant tubes (2,2) each have a respective adjacent reflector section (4,5) for directing a predetermined radiation distribution on passing printed sheet material.
    Type: Application
    Filed: December 5, 2003
    Publication date: September 2, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventors: Andreas Ihme, Axel Sobottka
  • Printing unit with reversible image setting and digital changeover
    Patent number: 6782824
    Abstract: A printing unit for a rotary printing machine with reversible image setting and digital changeover by means of thermal transfer, having an image-setting unit, an erasing or cleaning component and at least one inking unit. In order to achieve further cost advantages and miniaturization for such a printing unit, in particular for use in small edition color printing (digital offset press), the form cylinder and blanket cylinder are combined into one cylinder. In order to produce the reversible setting of an image (form production), this cylinder is provided with a hydrophilic surface and interacts directly with an impression cylinder in order to print on a substrate. The image-setting unit and erasing or cleaning component and inking unit are set against this cylinder.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: August 31, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventor: Josef Schneider
  • Offset printing machine having intermediate sleeve fitted to core cylinder using compressed air
    Patent number: 6782821
    Abstract: Variable-format web-fed offset printing machine having printing-unit cylinders comprising core cylinders to which compressed air can be applied and onto which intermediate sleeves can be pushed axially and shrunk on radially. Each intermediate sleeve includes a carrier layer whose inner face rests on the core cylinder, a compressible intermediate layer, a transition layer, and a variable-thickness bridging layer, which ends with a covering layer to which a further surface like a printing plate or a rubber blanket can be fitted.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: August 31, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Peer Dilling, Horst Dauer, Martin Weinberger
  • Carrying sleeve for printing and transfer forms and a process for production of such a carrying sleeve
    Patent number: 6779449
    Abstract: A carrying sleeve, for painting and transfer forms of a metal material, the initial form of which is a rectangular thin-walled flat sheet. The sheet is bent into the desired hollow cylindrical form and the edges of the sheet which point toward one another are permanently connected together. The sleeve surface is processed in order to form a homogeneous continuous outer surface, so that continuous printing can be carried out.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: August 24, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Eduard Hoffmann, Wolfgang Prem, Johann Winterholler
  • Offset printing machine
    Patent number: 6779446
    Abstract: The invention relates to the drive of a printing machine. Cylinders and functional groups are to be driven with low technical expenditure. To this end, all form cylinders (1.1, 1.2)in a printing unit, for example, are driven respectively by separate electric motors (7) and are not in mechanical drive connection.
    Type: Grant
    Filed: August 6, 2003
    Date of Patent: August 24, 2004
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Josef Hajek, Johann Königer, Michael Schramm, Peter Gröbner
  • Apparatus for adjusting pull rollers and/or cutting knives in folders
    Publication number: 20040159251
    Abstract: An apparatus for adjusting pressure rollers and/or cutting knives includes driven pull rollers or driven pull and knife rollers extending over the web width arranged opposite the pressure rollers and/or cutting knives and at least two threaded spindles, which are used to axially adjust the pressure rollers and/or the cutting knives simultaneously or immediately one after another. During the axial adjustment, some of the pressure rollers and/or the cutting knives remain stationary, some of the pressure rollers and/or cutting knives are adjusted by a first adjustment travel and/or some of the pressure rollers and/or cutting knives being adjusted by a second adjustment travel.
    Type: Application
    Filed: October 29, 2003
    Publication date: August 19, 2004
    Applicant: MAN Roland Druckmaschinen AG
    Inventor: Klaus Theilacker