Fountain Patents (Class 101/363)
  • Patent number: 10179340
    Abstract: Activator applying device including a receiving pan that stores an activator for activation of a transfer film, and a spreading roller that rotates while being dipped in the activator in the receiving pan and applies the activator that has adhered to the surface thereof in a dip section of the activator applying device to the transfer pattern in a different section of the activator applying device. The activator is fed to the receiving pan in an amount greater than the amount of the activator applied to the transfer pattern, and an excessive activator is discharged through a discharge port of the receiving pan. The activator is applied to the transfer pattern with the discharge port being located on the side where the activator is drawn up from the dip section, and the discharge port being located at the position of a streak caused by uneven dispersion of the additive pigment.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: January 15, 2019
    Inventors: Wataru Ikeda, Akiko Tomiki
  • Patent number: 10101663
    Abstract: An imprint apparatus performs includes an irradiation unit which irradiates a resin on a substrate with light, and a control unit which controls the irradiation unit. The imprinting is performed in an edge shot region, including an edge of the substrate, of a plurality of shot regions on the substrate. The edge shot region includes a pattern forming region where a pattern is to be formed, and a near-edge region closer to a side of the edge than the pattern forming region, and the control unit controls the irradiation unit to irradiate the resin which spreads from a position on the pattern forming region to a position on the near-edge region as the pattern surface comes into contact with the resin in the pattern forming region.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: October 16, 2018
    Inventors: Kohei Wakabayashi, Naoki Miyata
  • Patent number: 9869517
    Abstract: An atomization device for forming liquid particles is provided. The device includes a brush having a plurality of filaments coupled on one end thereof to the brush such that an opposing end of the filaments is free to oscillate; a plate having at least one liquid path configured for capillary action of liquid therein; wherein the brush is configured to be displaced with respect to the plate in a first direction during a cyclic displacement; and wherein disposition of the plate with respect to the brush is such that during the displacement in the first direction the filaments are displaced between a first position in which the opposing end is engaged with an edge of the liquid path collecting thereby film of liquid therefrom, and a second position in which the opposing end is free to oscillate in an alternating motion between the first direction and a second opposing direction.
    Type: Grant
    Filed: April 21, 2016
    Date of Patent: January 16, 2018
    Assignee: SNAPP IP LTD
    Inventor: Theodore Tench
  • Patent number: 9643399
    Abstract: An ink feed device includes an ink blade, a mounting device for the precise mounting of an ink blade and a system for feeding and dosing printing ink. The system includes an ink feed device and a mounting device. A method is provided for renewing a dosing edge of an ink blade, which edge is used to dose the ink. A method for operating an ink feed device, and including an ink blade, is also provided.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: May 9, 2017
    Assignee: Koenig & Bauer AG
    Inventors: Volker Elmar Scharkus, Volkmar Rolf Schwitzky
  • Patent number: 9393585
    Abstract: An adhesive coating device is provided with an adhesive reservoir; two opposite adjustment rollers at bottom of the reservoir; a pattern roller between the adjustment rollers and having a pattern formed thereon; a resilient roller under the pattern roller; a roller member under the resilient roller; two pivotal, co-rotated links on a side of the reservoir and operatively connected to the adjustment rollers respectively; and a spring biased adjustment screw pivotably secured to an end of one link. Clockwise rotation of the adjustment screw rotates the links at different directions, thereby decreasing a gap between the pattern roller and each adjustment roller.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: July 19, 2016
    Inventor: Yu-Cheng Huang
  • Patent number: 9346260
    Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink which is returned to the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump responsive to feature characteristics determined by analyzing a captured image of the printed pattern.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: May 24, 2016
    Inventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
  • Patent number: 9248639
    Abstract: An imaging device can include an imaging drum to support a carrier fluid. A roller can remove a portion of the carrier fluid from the imaging drum. A fluid container can collect the carrier fluid from the roller. A fluid remover on the container can be used to remove the carrier fluid from the roller.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: February 2, 2016
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Daihua Zhang, Napoleon J Leoni, Henryk Birecki, Omer Gila
  • Patent number: 9233531
    Abstract: A flexographic printing system uses a flexographic printing plate to produce printed patterns on a substrate. An ink recirculation system is used to reduce variability in system performance resulting from ink viscosity changes. A recirculation pump moves ink through an ink recirculation line connected to an ink reservoir. A metering pump adds a controlled flow rate of solvent from a solvent replenishment chamber into the ink recirculation line, thereby providing replenished ink. The replenished ink is returned to the ink reservoir through a distribution tube that includes a plurality of supply ports at a plurality of spaced apart locations across a width of the ink reservoir. A control system is used to control the flow rate of solvent provided by the metering pump.
    Type: Grant
    Filed: January 24, 2014
    Date of Patent: January 12, 2016
    Inventors: James Douglas Shifley, Peter Steven Alexandrovich, James Albert Reczek
  • Publication number: 20150128821
    Abstract: A fountain blade assembly for an ink station assembly is provided. The ink station assembly includes an anilox roll and an ink fountain. The ink fountain includes a liquid ink supply and the fountain is structured to apply said ink to said anilox roll. The fountain blade assembly includes a mounting assembly, a blade assembly, and an adjustment assembly. The blade includes a plurality of adjustable portions, each blade adjustable portion is structured to move between a first position, wherein each said blade adjustable portion is spaced from said anilox roll outer surface, and a second position, wherein each said blade adjustable portion engages said anilox roll outer surface.
    Type: Application
    Filed: November 13, 2013
    Publication date: May 14, 2015
  • Publication number: 20140261034
    Abstract: An ink fountain apparatus, method of method of adjusting printing characteristics in flexographic printing and a printing press system are disclosed. The apparatus may include a side plate, a roller disposed adjacent a first end of the plate, a back plate disposed adjacent a second opposing end of the side plate and a throttle disposed between the roller and the back plate. The throttle is mounted to the side plate and includes a back surface facing towards the back plate and a front surface facing towards the roller. The front surface includes a curved portion forming a tapering gap between the roller and the front surface of the throttle. A position controller is coupled to the throttle to selectively move the curved portion towards and away from the roller to adjust the volume of ink being transferred to the outer surface of the roller.
    Type: Application
    Filed: March 12, 2014
    Publication date: September 18, 2014
    Inventor: Ronald K. Westby
  • Publication number: 20140230672
    Abstract: The disclosure relates to an apparatus for flexographic printing of a web of packaging material. The apparatus has an anilox roll which is rotary in an ink pan or chamber for picking up and transferring printing ink to an impression cylinder which is rotary adjacent the anilox roll and forms, together with a counter pressure cylinder rotary adjacent the impression cylinder, a nip through which the web is led for receiving printing ink from the impression cylinder. In order to prevent printing ink from drying and adhering to the anilox roll, the apparatus displays a spray- or shower device through which a cleaning fluid for the printing ink is applied on the circumferential surface of the anilox roll.
    Type: Application
    Filed: October 25, 2012
    Publication date: August 21, 2014
    Inventors: Ingvar Andersson, Stefan Nyborg, Michael Hermansson, Peter Öhman
  • Publication number: 20140208967
    Abstract: A method for controlling at least one control parameter from a number of parameters of an inking unit of a printing press is disclosed. Based on at least the control parameter, a value of an ink density on a substrate to be printed by the printing press is calculated by an inking unit model and the calculated value is used as input quantity for controlling instead of an actual value. Here, the calculated value is exclusively calculated based on a number of parameters of the inking unit at least at times.
    Type: Application
    Filed: January 29, 2014
    Publication date: July 31, 2014
  • Publication number: 20140130689
    Abstract: In an ink supply method in an ink supply apparatus including an ink fountain storing, a plurality of ink fountain keys, an ink fountain roller, an ink ductor roller, and an ink roller group, the throw-off operation of an ink form roller positioned at the end of the ink roller group is performed after the end of a print job using a preceding printing plate. The ink feed operation of the ink ductor roller is stopped after the end of the print job using the preceding printing plate. The ink roller group is divided into a plurality of roller subgroups after the end of the print job using the preceding printing plate. The ink in some roller subgroups out of the divided roller subgroups is scraped and removed by an ink scraping member. An ink supply apparatus is also disclosed.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 15, 2014
    Inventors: Masahiro Hirano, Keiichi Hosaki
  • Publication number: 20130305941
    Abstract: An ink supply method in an ink supply apparatus including an ink fountain, a plurality of ink fountain keys, an ink fountain roller, an ink ductor roller, and an ink roller group. An ink film thickness distribution corresponding to an image on a printing plate is formed in the ink roller group. The ink roller group is divided into a plurality of roller subgroups. After or before division, a throw-on operation is performed for at least one of the plurality of roller subgroups, and a plate cylinder on which the printing plate to be used for printing of the next job is mounted. Ink in at least one of the plurality of roller subgroups is supplied to the printing plate mounted on the plate cylinder by rotating the plate cylinder and at least one of the plurality of roller subgroups. An ink supply apparatus is also disclosed.
    Type: Application
    Filed: April 25, 2013
    Publication date: November 21, 2013
    Inventors: Akihiro Nakamura, Masahiro Hirano
  • Publication number: 20130192483
    Abstract: The present disclosure is related to an apparatus for a flexographic printing process with wet on wet capability based on controlled polymer or polymer segment precipitation that leads to gel formation of ink compounds by controlling the solubility parameter of the ink system. Insoluble segments in the ink form a reversible gel that is broken to a liquid by heat and/or shear forces during the application process, allowing application of a liquid ink. After application, the ink reverts to its gel state with such strength as to allow overprinting in the wet on wet flexographic printing process. The disclosure is also related to a flexographic printing apparatus comprising a feeding system for providing a flexographic ink, wherein the ink in a liquid state has a viscosity ranging from about 100 cps to about 4,000 cps, and the ink in a gel state has a measurable hardness.
    Type: Application
    Filed: March 14, 2013
    Publication date: August 1, 2013
    Inventors: Valter Marques Baptista, Wilson Andrade Paduan
  • Publication number: 20130186291
    Abstract: A method and systems to control the temperature of a Keyless inker for variable data lithography printing. Inker heating elements are adjustable to control ink feed to individual zones located across the width of an ink roller. Feedforward and feedback control loops adjust the ink supply dynamically based on a pixel count of the image content. The pixel count looks ahead in the video stream to allow time for the adjustment at the inker heating elements to propagate through the inker unit to affect ink output onto the imaging drum surface. Feedback of the achieved ink density on control patches on the imaging drum is also used to command the inker heating elements. Feedback is also used to update the inker propagation delay and dynamic model used to determine how much the inker keys need to be adjusted based on the pixel count stream.
    Type: Application
    Filed: January 23, 2012
    Publication date: July 25, 2013
    Inventors: Peter Paul, Jorge A. Alvarez, Nancy Y. Jia, Charles Donahue Rizzolo, Augusto E. Barton
  • Publication number: 20120103214
    Abstract: An inking subsystem for a variable data digital lithography system comprises a first ink roller disposed to receive ink on a surface thereof, the ink being provided from an ink reservoir such that it may be provided by the first ink roller to a reimageable surface of said variable data digital lithography system, and a heating apparatus disposed proximate the first ink roller to provide heating of the first ink roller preferentially at the point of application of the ink by the first ink roller to the reimageable surface. Various methods and apparatus for heating the first ink roller are disclosed.
    Type: Application
    Filed: April 27, 2011
    Publication date: May 3, 2012
    Inventors: Timothy Stowe, Ashish Pattekar, Eric Peeters, David Biegelsen
  • Publication number: 20120067234
    Abstract: An arrangement for controlling a spray distribution of a pulse width modulated spray dampener at a printing press comprises a spray beam (110), a number of spray units (120) fastened to the spray beam, and a housing (300) at least partly enclosing the spray units. The housing is arranged such that at least a part of the sprays emitted from the spray units (120) is screened off from escaping the housing, and an individually formed screen surface (130) is configured to control the spray distribution by screening off spray portions from escaping the housing.
    Type: Application
    Filed: March 31, 2010
    Publication date: March 22, 2012
    Applicant: BALDWIN JIMEK AB
    Inventor: Birger Hansson
  • Publication number: 20100282102
    Abstract: A printing cylinder for printing at least two different designs on a continuous roll of a substrate. The printing cylinder has at least one printing plate secured to the surface of the cylinder, and each printing plate prints a different design. The substrate comprises vinyl, PVP, cellophane, wood pulp, or paper. The printing cylinder typically has at least two printing plates, that occupy the same arc or different arcs of the circumference of the printing cylinder. Also disclosed is a printing station comprising the printing cylinder, and a process for printing at least two different designs on a continuous roll of a substrate using the printing cylinder.
    Type: Application
    Filed: May 10, 2010
    Publication date: November 11, 2010
    Inventor: Sharmin MEHDIZADEH
  • Publication number: 20090260529
    Abstract: An inker for applying ink to a transfer roll of a printing machine has an inking chamber extending longitudinally along the transfer roll and having an outlet also extending longitudinally along the transfer roll and open against the transfer roll and a first generally cylindrical mixing chamber centered on an axis, spaced transversely from and extending longitudinally along the transfer roll. A rotatable shaft extending along the axis in the mixing chamber carries a partition subdividing the mixing chamber into two axially adjacent and axially spaced mixing compartments open radially into the inking chamber. At least two inlet conduits open onto each of the compartments, and a pump feeds respective inks to the inlet conduits and therethrough into the mixing compartments.
    Type: Application
    Filed: October 21, 2008
    Publication date: October 22, 2009
    Inventors: Rainer ENDRES, Peter Schmitt
  • Patent number: 7487724
    Abstract: A liquid transfer arrangement for applying a printing liquid to a printing surface, for example, in a printing apparatus comprising a liquid transfer roller, a printing cylinder with a peripheral printing plate in surface contact with the transfer roller, and an impression cylinder in peripheral surface contact with the printing cylinder for conveying a printable substrate therebetween. The liquid transfer arrangement comprises an encasement arcuately surrounding a substantial circumferential portion of the transfer roller surface to define a substantially uniform constricted radial spacing therebetween for containing a limited quantity of the printing liquid to be carried by the transfer roller to the printing cylinder. A device associated with the encasement feeds a printing liquid supply into the radial spacing for take up by the transfer roller surface.
    Type: Grant
    Filed: May 9, 2006
    Date of Patent: February 10, 2009
    Inventors: Larry William Evans, Christopher Harper
  • Publication number: 20090000499
    Abstract: Apparatus for applying a liquid medium such as a printing medium to a rotatable cylinder is disclosed including a chambered doctor blade with an elongated frame, a pair of doctor blades in wiping engagement with the surface of the rotatable cylinder, a seal disposed axially with respect to the cylinder including first and second seals, with the elongated frame, the doctor blades, the seal and the surface of the cylinder forming an elongated chamber containing the liquid medium, and at least one drainage channel including an inlet in the space between the two seals for diverting leaking medium from the space. Also disclosed is such apparatus which includes at least one spray nozzle within the elongated chamber for cleaning the chamber, the nozzle being movable between a number of outlet directions. A method for sealing the chambered doctor blade is also disclosed.
    Type: Application
    Filed: May 3, 2005
    Publication date: January 1, 2009
    Applicant: Ake-Boose International AB
    Inventors: Ake Boose, Fredrik Irlen
  • Publication number: 20080229949
    Abstract: A liquid transfer apparatus includes a supply cylinder and viscosity reducing agent supply unit. The supply cylinder comes into contact with a transfer target body and supplies a transfer liquid to the transfer target body. The viscosity reducing agent supply unit supplies a viscosity reducing agent which reduces a viscosity of the transfer liquid to the supply cylinder after the apparatus emergently stops and before the supply cylinder starts transfer.
    Type: Application
    Filed: March 17, 2008
    Publication date: September 25, 2008
    Inventors: Hirofumi Saito, Yoshihito Nakamura, Akihiro Matsukawa, Katsuhisa Nakamura, Masaaki Asami
  • Publication number: 20080216697
    Abstract: Disclosed is a contact-pressure adjusting method and a contact-pressure adjusting system, each of which automatically adjusts the contact pressure between two rotors, for a liquid application machine including: a first rotor to which liquid is supplied; a second rotor to which the liquid is supplied from the first rotor; and a contact-pressure adjusting unit for adjusting the contact pressure between the first rotor and the second rotor. By using a temperature measuring unit, measured is: the temperature of at least one of the surfaces of the first and second rotors; the temperature of at least one of the liquid on the surface of the first rotor and the liquid on the surface of the second rotor; or the temperature of at least one of the vicinity of the first rotor and the vicinity of the second rotor. The contact-pressure adjusting unit is adjusted in accordance with the measured temperature.
    Type: Application
    Filed: March 5, 2008
    Publication date: September 11, 2008
    Inventors: Akihiko TAKENOUCHI, Hiromitsu NUMAUCHI, Akehiro KUSAKA
  • Publication number: 20080168917
    Abstract: A valve assembly includes a digitally controlled piston residing in a cylinder interior of a cylinder, and provides a linear flow rate versus piston position. Ink is pumped into a housing interior containing the cylinder. The ink flows from the housing interior into the cylinder interior through a tapered orifice in the cylinder, then from the cylinder interior to a printing press. The tapered orifice is aligned with the direction of travel of the piston and the position of the piston in the valve body is controlled by a stepper motor to determine how much of the tapered orifice is uncovered by the piston. The tapered orifice is designed to compensate for a pressure drop in the housing interior as the valve assembly opens to allow more flow, and results in the linear relationship between the piston position and the flow rate through the orifice.
    Type: Application
    Filed: January 12, 2007
    Publication date: July 17, 2008
    Inventor: Michael McCarty
  • Patent number: 7343857
    Abstract: An imprint apparatus configured such that it can press a laminate structure in which a magnetic film and a resist film are sequentially laminated on a substrate. The imprint apparatus includes a first press plate configured to mount the laminate structure, a second press plate adapted for sandwiching the laminate structure, a stamper placed on a surface of the second press plate, and has projections and recesses configured to be transferred onto the resist film, and a light source configured to dispose on the same plane as the laminate structure, and is oriented so that the light source can shine the resist film.
    Type: Grant
    Filed: September 30, 2004
    Date of Patent: March 18, 2008
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masatoshi Sakuarai, Akira Kikitsu, Naoko Kihara
  • Patent number: 7337720
    Abstract: A dual-doctor blade assembly that can accurately meter ink delivery to the anilox cells on the anilox roll of a flexographic printing system. The system utilizes a retractable dual-blade configuration in conjunction with an ink chamber and a gap between the lower doctor blade and the anilox roll. The entire configuration can be adjusted for anilox rolls of various diameters. The upper blade in this system contacts the anilox roll at a point after its rotation through the application tray and scrapes ink from the surface of the anilox roll directly into the ink chamber. As the chamber fills with ink, the hydraulic pressure created by the spinning of the anilox roll increases to a point where the anilox cells are filled to the appropriate volume. The gap created between the lower doctor blade and the anilox roll serves two functions.
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: March 4, 2008
    Assignee: F.L. Smithe of Canada, Inc.
    Inventors: Pascal Ross, Mario Brunelle, Joey Hanachian
  • Patent number: 7332033
    Abstract: A doctor bed is provided for holding a circularly cylindrical metering rod, including a housing of a homogenous material, which is designed with a cross section at right angles to the cylinder longitudinal axis of the metering rod and has a circularly cylindrical recess which surrounds the metering rod with a form fit over at least 180°. The doctor bed is arranged on a machine processing a moving material web, there being arranged on the housing, in the region of the recess, at least one groove running parallel to the cylinder longitudinal axis of the metering rod. A wiping strip is arranged detachably between the metering rod and the doctor bed.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: February 19, 2008
    Assignee: Voith Paper Patent GmbH
    Inventors: Christoph Henninger, Horst Kaipf, Martin Schaubmaier, Michael Heitzinger, Ruediger Keinberger
  • Patent number: 7287471
    Abstract: A color chamber doctor blade has two doctor blade knives oriented in a roof-like fashion against a roller, from which the two doctor blade knives can be fixed on a doctor blade chamber body by means of a clamping plate. The clamping plate is in active connection with long-stretch fasteners in the axial direction (z) of the roller. The long-stretch fasteners are arranged substantially parallel to the clamping plate, and apply the force required for fixing at least one doctor blade knife. The resultant of the force exercised by the fasteners points toward the doctor blade chamber body.
    Type: Grant
    Filed: November 26, 2003
    Date of Patent: October 30, 2007
    Assignee: Windmoeller & Hoelscher KG
    Inventors: Klaus Graeler, Guenter Rogge
  • Patent number: 7243600
    Abstract: An ink pan for a rotogravure printing press has a reservoir and a dam. The dam is located within the reservoir and divides the reservoir into an intake section and an outtake section. A gate is within the dam. The gate has an open position and a closed position. When the gate is closed the dam maintains an ink in the intake section until the ink exceeds a depth greater than the height of the dam, and then the ink flows over the dam into the outtake section. When the gate is in an open position the gate allows ink in the intake section to be emptied into the outtake section.
    Type: Grant
    Filed: May 3, 2006
    Date of Patent: July 17, 2007
    Assignee: Flxon Incorporated
    Inventor: Steven E. Boettcher
  • Patent number: 7234396
    Abstract: An ink applicator has at least one generally stationary mounting part, a fixed elongated bar fixedly mounted on the mounting part and carrying an elongated applicator blade, and a movable elongated bar mounted on the mounting part, extending parallel to the fixed bar, carrying an elongated applicator blade parallel to the fixed-bar blade, and defining an elongated ink-holding compartment with the fixed bar. The movable bar is supported on the mounting part for movement between an outer position with the movable-bar blade spaced transversely from the fixed-bar blade and defining a gap through which ink can flow out of the compartment and an inner position with the blades engaging one another and closing the gap so that no ink can flow out of the compartment.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 26, 2007
    Assignee: KBA-Metronic AG
    Inventors: Josef Karl Kleinschnitz, Thomas Kubert
  • Patent number: 7228800
    Abstract: A doctor beam (1) is provided for a doctor blade for application in a printing unit. The doctor beam comprises a U-shaped channel. At least the U-shaped channel (3), which is formed in a metal beam, is provided with a fibre coating (6) preferably made of carbon fibres. Hereby is achieved resistance against corrosive attack on the metal by cleaning agents and/or printing inks.
    Type: Grant
    Filed: February 14, 2001
    Date of Patent: June 12, 2007
    Assignee: Tresu Anlæg A/S
    Inventor: Henrik Leimand
  • Patent number: 7219603
    Abstract: An ink supply unit for a flexographic press that is convenient for exchange of an anilox roll and an order of colors to be printed is disclosed. A time for test printing can be shortened, thereby enhancing a working efficiency. A pivot frame can move between a printing position where an anilox roll is mounted on a stationary frame to engage a printing cylinder and an exchanging position where the anilox roll is spaced away from the stationary frame to disengage the printing cylinder. An ink level of a maximum amount of ink contained in an ink chamber is located near a contact position between an upper doctor blade and the anilox roll, when the pivot frame is located at the printing position. The ink level is located below a lower doctor blade, when the pivot frame is located at the exchanging position.
    Type: Grant
    Filed: September 22, 2004
    Date of Patent: May 22, 2007
    Assignee: Kabushiki Kaisha Taiyo Kikai Seisakusho
    Inventor: Teiichirou Ishikawa
  • Patent number: 6871590
    Abstract: An inking system for a printing machine which has a relatively simple design and which is adapted for more stable ink transfer to a plate cylinder. The inking system includes an ink supply roller (15), one or more drivable inking unit rollers (14, 19), an adjustment system for establishing a predetermined nip (19) between the ink supply roller and one of the drivable unit inking rollers (14, 19), and at least one movable calender roller (10) in constant contact with one of the drivable inking unit rollers operable for selectively interrupting the ink transfer.
    Type: Grant
    Filed: November 21, 2000
    Date of Patent: March 29, 2005
    Assignee: MAN Roland Druckmaschinen AG
    Inventors: Peter Hummel, Peter Schramm, Robert Ortner
  • Patent number: 6792854
    Abstract: An economical liquid metering device which dispenses liquid in digital steps. Further advantages are: the ease of liquid change because components which are in contact with the liquid are economically exchangeable or disposable, and each computer pulse dispenses a predictable quantity of the liquid. To provide a continuous flow, the volume and operation rate between pump pulses may be controlled, so that the dispensing rate becomes substantially continuous.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: September 21, 2004
    Inventor: Leonard I. Tafel
  • Patent number: 6782819
    Abstract: An inking apparatus according to the present invention includes an ink fountain roller, an ink fountain blade, a front end of which is position-adjustable to be located close to the outer circumference of the ink fountain roller, a pair of side plates, each standing upright from the ink fountain blade so that an arcuate front end surface encircles part of the outer circumference of the ink fountain roller to form an ink fountain for storing ink in cooperative with the ink fountain roller and the ink fountain blade, in which a permanent magnet is embedded in a bottom surface of each the side plate in contact with the ink fountain blade for fixing the side plate to a desired position of the ink fountain blade. The pair of side plates are movable relative to the ink fountain blade along an axis of the ink fountain roller.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: August 31, 2004
    Assignee: Lintec Corporation
    Inventors: Nobuyoshi Oumiya, Hideyuki Maezawa, Yasunobu Maeda
  • Patent number: 6779448
    Abstract: The ink-agitator (1) is supported and guided by fixed means between pedestals (2) and (3) above an ink fountain containing security ink. It is driven in alternate movement on its guiding means and its tip is dipping into the ink. Bore (11) receives a detector head in the form of a transformer with primary winding arranged for normally producing a “zero” magnetic field, adjustable ferrite core place in such a manner that the “zero” magnetic field is obtained for a standard magnetic property of the security ink, and secondary winding going out of balance and issuing a signal if the magnetic property of the ink into which the tip of the ink-agitator is displaced undergoes modifications. The output signal is transmitted to feed line (4) with slide contact (6) whereas the ground pole is connected through wire (5) and sliding contact (7).
    Type: Grant
    Filed: October 7, 2002
    Date of Patent: August 24, 2004
    Assignee: KBA-Giori S.A.
    Inventors: Stephen Brown, Eric Fivaz
  • Patent number: 6684781
    Abstract: A printing device for printing on wrapping paper according to the present invention comprises a cartridge holder (40) having an ink nozzle (18) on the outside thereof and adapted to house an ink cartridge (50); an ink supply passage (79) connecting the ink cartridge (50) and the ink nozzle (18); and a linear actuator (80) supported at the cartridge holder (40) and adapted to push a plunger (52) in the ink cartridge (50) more into the ink cartridge (50).
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: February 3, 2004
    Assignee: Japan Tobacco Inc.
    Inventor: Masayoshi Saitoh
  • Patent number: 6675706
    Abstract: A seal apparatus is disclosed for sealing dampening solution which is disposed within a reservoir extending from a nip defined between a form roller and a metering roller of a lithographic printing machine. The apparatus includes a source of pressurized air and device for directing a flow of air from the source of pressurized air towards an edge of the reservoir and between the form and metering rollers such that the flow of air generates an air dam for sealing the reservoir so that leakage of the dampening solution from the edge of the reservoir is inhibited.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: January 13, 2004
    Inventors: Dean A. Barker, Terrence Hatch
  • Patent number: 6637330
    Abstract: A doctor blade system with clamping device is provided for clamping a doctor blade, for example, in a doctor blade chamber without using screws and without having to use tools. A clamping mechanism, preferably pneumatic, counteracts the clamping by actuation. By disposing a sectional rail between the clamping rail and the doctor beam, the sectional rail drawing the clamping rail and the beam together with a spring mechanism, the doctor blade is clamped between the clamping rail and the beam. In another embodiment, the clamping rail is designed as an angular section tipping about an edge.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: October 28, 2003
    Assignee: Tresu Production A/S
    Inventors: Klaus Nordby, Jan Kjaer Larsen, Erik Gydesen, Uffe Bastrup
  • Patent number: 6629496
    Abstract: A device is designed to sealingly close an end of a chambered doctor blade (K). The chambered doctor blade (K,) has an elongate frame (K1) and two elongate doctor blades (K6, K7), which are arranged on the frame (K1) and define, together with the latter, an elongate chamber (K10), which is adapted to hold, for instance, ink. The chambered doctor blade (K) has an elongate opening (K11) for abutment, in an operative position of the chambered doctor blade (K), against a rotatable cylinder (V) included in a printing unit. The end sealing device comprises first and second sealing sheets (20, 30) which are mountable to at least partially overlap each other and sealingly close an opening (K11) in one end of said chamber (K10).
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: October 7, 2003
    Inventors: Åke Bööse, Jan Stenqvist
  • Patent number: 6598525
    Abstract: A device for receiving an ink supply in an ink feed device in an inking unit of a printing machine, the ink supply being received in a reservoir having elements formed with laterally bounding surfaces, and contact surfaces for sealing off the ink supply with respect to a rotating surface, comprising unipartite side parts, respectively, constituting the elements formed with the bounding surfaces and the contact surfaces, the contact surfaces being engageable with respective contact areas on an ink-fountain roller formed with the rotating surface, the side parts having lip-shaped sealing elements bearing resiliently on the ink-fountain roller.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: July 29, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Jacques Metrope
  • Patent number: 6571703
    Abstract: A device for holding an ink supply in an ink-feeding device in an inking unit of a printing machine, the ink supply being received in a reservoir defined by lateral surfaces having contact surfaces for sealing off the ink supply with respect to a rotating surface, comprising a resilient element for sealing off a gap, the resilient element being received in respective side parts of an ink-feeding device, and setting elements for applying a setting force to the side parts; and an ink duct; an inking unit; and a printing unit, respectively, including the device.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: June 3, 2003
    Assignee: Heidelberger Druckmaschinen AG
    Inventor: Jacques Metrope
  • Patent number: 6571704
    Abstract: The present invention provides an ink supply apparatus for a printing press in which the ink supply amount from an ink fountain to an ink fountain roller is controlled by regulating a gap between ink blades and the ink fountain roller, wherein an integral type ink tray comprising a bottom portion covering portions of the upper faces of the ink blades excluding the distal end portions thereof and side portions covering the inside surfaces of side plates is provided, a first seal member is interposed between the inside surface of the side plate and the side portion, and a second seal member in slidable contact with the ink blades is interposed between the ink blades and the bottom portion of the ink tray.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: June 3, 2003
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinichi Fujimoto, Teruaki Kihara
  • Patent number: 6477953
    Abstract: The present invention relates to an ink supply device and an ink key thereof and makes it possible to stabilize the action of the ink key and to save labor in cleaning of the ink key by preventing the ink from getting into a gap between the neighboring ink keys. A cover member imperviously covering the surfaces of a plurality of ink keys is mounted in an ink box to reduce an area where the ink keys are in direct contact with the ink and a an inset is made into one or both of the walls of each of the plurality of neighboring ink keys covered by the cover member, the inset extending from the top surface of the ink key to the bottom surface thereof, so that even if the ink leaks and gets into a gap between the ink keys because of capillary phenomenon, the wall inset provides an enlarged space between the keys which prevents the ink from spreading the gap between the ink keys.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: November 12, 2002
    Assignee: Mitsubishi Heavy Industries, Ltd.
    Inventors: Shinichi Fujimoto, Teruaki Kihara
  • Patent number: 6412410
    Abstract: The invention relates to an end sealing system for. a scraper chamber (6) of an impression machine or a machine depositing a viscous or liquid fluid on a surface, the chamber cooperating with a screen transfer cylinder (1) and being laterally closed by longitudinal scrapers (2). The system includes a mounting frame (3) housed at the end of the scraper chamber (6), an elongated seal (4) made of an elastically deforming alveolar material cooperating at its ends with the mounting frame (3), and a rigid second seal (5) mounted on the elongated seal (4) between the latter's ends, and being guided in the mounting frame (3). The ends of the elongated seal (4) rest under the ends of the scraper (2) on the side opposite the screen transfer cylinder (1).
    Type: Grant
    Filed: September 11, 2000
    Date of Patent: July 2, 2002
    Assignee: Georgia-Pacific France
    Inventor: Bernard Poullier
  • Patent number: 6335098
    Abstract: An ink duct for use with a screen roller which comprises a working doctor blade and a closing doctor blade, wherein the working doctor blade has one or both sides partially or completely coated with an unreleasable coating of a low surface energy substance having a surface energy of 10 to 60 mN/m. This coating prevents disruptive ink deposits from forming on the side of the working doctor blade opposite to the ink retaining portion of the ink duct and reaching the doctored surface of the ink metering roller in an uncontrolled or random manner.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: January 1, 2002
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Willi Albert Peter Kutzner, Wolfgang Günther Ruckmann, Karl Robert Schäfer, Georg Schneider
  • Patent number: 6076463
    Abstract: An ink metering device and method. Ink is fed at a pressure to an orifice. Pressure may be achieved by either an ink pump or a gravity feed. The size of the orifice may be varied according the conditions existing in the printing press. The pressure at which the ink is fed may also be varied. Ink exiting the orifice is fed onto the surface of an ink applicator roll. At a location downstream of the orifice, a control blade is positioned adjacent the outer surface of the ink applicator roll. The distance between the tip of the control blade and the outer surface of the ink applicator roll may be varied using a control blade positioning mechanism. The distance between the tip of the control blade and the outer surface of the ink applicator roll controls the smoothness and/or the thickness of an ink film which is created on the surface of the ink applicator roll. This film is transferred directly to the image or plate cylinder, which is in contact with the outer surface of the ink applicator roll.
    Type: Grant
    Filed: August 27, 1998
    Date of Patent: June 20, 2000
    Assignee: Heidelberger Druckmaschinen AG
    Inventors: James Brian Vrotacoe, Edward Ellis Urquhart
  • Patent number: 6076462
    Abstract: A cylinder in a rotary printing press is inked with a highly viscous printing ink. An open ink duct is provided with a doctor blade that is supported negatively on the cylinder. A reserve of printing ink is added to the ink duct and is formed into an ink roll. A regular and intensive inking of the cylinder results with only very low ink circulation.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: June 20, 2000
    Assignee: Koenig & Bauer Aktiengesellschaft
    Inventors: Karl Robert Schafer, Georg Schneider
  • Patent number: 6016748
    Abstract: A seal for a chamber doctor blade (12) of a printing machine, with a sealing block (30) of a pliable material, which is inserted at one end of the chamber doctor blade between two doctor blades (16, 18) and closes off an inking chamber (20), bounded by the periphery of an applicator roller (10) of the printing machine, the doctor blades and a housing (14) of the chamber doctor blade, in which the surface of the sealing block (30), facing the applicator roller (10), is covered with a strip (34) of elastic material, which is harder than the material of the sealing block.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: January 25, 2000
    Assignee: Fischer & Krecke GmbH & Co.
    Inventors: Wilfried Kolbe, Klaus Schirrich, Michael Schmitt, Lars Gruter