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EP2152618A2 - Dispositif de soufflage pour des applications d'impression et de revêtement - Google Patents

Dispositif de soufflage pour des applications d'impression et de revêtement

Info

Publication number
EP2152618A2
EP2152618A2 EP08747146A EP08747146A EP2152618A2 EP 2152618 A2 EP2152618 A2 EP 2152618A2 EP 08747146 A EP08747146 A EP 08747146A EP 08747146 A EP08747146 A EP 08747146A EP 2152618 A2 EP2152618 A2 EP 2152618A2
Authority
EP
European Patent Office
Prior art keywords
air
sheet
printing
flow
gap
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08747146A
Other languages
German (de)
English (en)
Inventor
Robert Wall
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kompac Technologies LLC
Original Assignee
Kompac Technologies LLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kompac Technologies LLC filed Critical Kompac Technologies LLC
Publication of EP2152618A2 publication Critical patent/EP2152618A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/042—Intermediate conveyors, e.g. transferring devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/02—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles
    • B65H29/04—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands
    • B65H29/041—Delivering or advancing articles from machines; Advancing articles to or into piles by mechanical grippers engaging the leading edge only of the articles the grippers being carried by endless chains or bands and introducing into a pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H29/00—Delivering or advancing articles from machines; Advancing articles to or into piles
    • B65H29/24—Delivering or advancing articles from machines; Advancing articles to or into piles by air blast or suction apparatus
    • B65H29/245—Air blast devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2801/00—Application field
    • B65H2801/03—Image reproduction devices
    • B65H2801/21—Industrial-size printers, e.g. rotary printing press

Definitions

  • the present invention relates generally to using an air delivery device for flexible substrate printing and coating processes, and more particularly to integrating an air knife into printing presses and related printing or coating machinery such that an air curtain produced by the air knife can be used to manipulate the printed or coated sheets produced by the machinery.
  • Conventional air delivery devices are well-known in the art as a way to direct a stream of compressed or high- velocity air through an orifice such that the air can impinge onto a workpiece.
  • One particular form of the air delivery device is the air knife (also referred to as air amplifier or the like), which can leverage a primary stream of air through a slotted nozzle such that external air is entrained by a localized vacuum formed on a surface adjacent the nozzle into the primary stream through the Coanda effect to produce a well-defined sheet of laminar airflow.
  • Significant amplifications of air are possible with such devices.
  • Air delivery devices in general and air knives in particular are often configured as elongate linear structures that can straddle a conveyor belt so that articles carried on the conveyor can be dried or cleaned by the scrubbing action of the airflow.
  • One form known as offset printing, involves providing sheets of paper or related substrate to a printing station that includes a series of cylinders (typically referred to as a plate cylinder, blanket or offset cylinder and impression cylinder, collectively referred to as printing cylinders) that together impart the printed pattern onto the sheet.
  • a chute, chain-driven conveyor or related delivery device takes the newly printed sheets to a subsequent printing station, stacking station or the like.
  • shafts, gears, sprockets, chains, gripper bars, belts and other equipment are used to coordinate the rotation of the cylinders and the conveyor.
  • the chain is part of a conveyor that supports the gripper bars that grasp the leading edge of a sheet or related substrate coming off an impression cylinder.
  • Some of these components, especially the shafts that extend across the width of the cylinders, are often in the path of the newly printed or coated sheets on their way from the cylinders to the conveyor. Contact with the shaft is deleterious to the newly printed or coated page, as smudging of the wet ink or coating may occur.
  • the operation is generally similar, with the exception of not having a chain with attached gripper bar. Sheets that have passed through the various cylinders are ejected directly from a cylinder into a catch tray (also known as a chute).
  • the air bar helps guide the sheet onto the conveyor in a manner so the wet coated surface does not contact anything.
  • one or more contacting wheels may be placed on the rotating shaft, thereby minimizing contact with the newly printed or coated sheet.
  • a delivery wheel, skeleton wheel or a star wheel may be placed on the rotating shaft, thereby minimizing contact with the newly printed or coated sheet.
  • an anti-marking fabric covering system for use on one or more of the printing cylinders can be used to reduce the likelihood of ink smudging or smearing.
  • a smoothed surface (typically metal) cylinder is covered by an ink and water repelling net such that together, the low-friction cylinder surface and net reduce the likelihood of marking.
  • a sheet leaving the cylinder is removed by the gripper bar such that little or no marking is produced.
  • the cloth tends to wear out over time, necessitating additional equipment and maintenance expenses.
  • an air delivery device that can be integrated into printing or coating machinery to manipulate sheets of paper or related printable material be invented. It is further desirable that such device facilitate smudge-free printing or coating of the sheets. It is additionally desirable that such a device have the ability to operate on sheets of varying dimensions and thicknesses such that machine down-time associated with reconfiguring the device be avoided. It is further desirable that such device be inexpensive to manufacture and operate.
  • an air knife cooperates with a printing device, such as a printing press or related piece of printing or coating machinery, such that flexible sheets that have just received printing or coating thereon from the machinery can be bent, turned or dried by the air knife.
  • a printing device such as a printing press or related piece of printing or coating machinery
  • flexible sheets that have just received printing or coating thereon from the machinery can be bent, turned or dried by the air knife.
  • an air knife can be used as part of a printing press or coating machine, either of which may be possessive of numerous printing cylinders and delivery means for withdrawing printed or coated sheets from the printing cylinders.
  • the air knife is arranged relative to the printing device to prevent the still-wet sheets coming from the device from contacting the delivery means components.
  • the air knife includes a housing with a plenum, air inlet and an air outlet. The exterior of the housing A-
  • the fairing includes one or more convex surfaces, while a fairing is attachable to the housing to cover the air outlet.
  • the fairing is spaced relative to the housing such that a gap formed between the two permits air from the plenum that passes through the air outlet to be discharged through the gap and along the one or more convex surfaces.
  • Means for varying the thickness of the gap are also provided such that upon passage of a flow of air from the plenum and discharge through the gap, the fairing cooperates with the one or more convex surfaces to provide a Coanda effect on the discharged flow.
  • the fairing and the one or more convex surfaces cooperate aerodynamically with one another.
  • the Coanda effect imparted to the discharged flow entrains at least some of the ambient air surrounding at least one of the housing and the fairing.
  • This allows the discharged flow and the entrained ambient air to flow substantially together in a generally sheet-like pattern.
  • Such operation acts like an air amplifier.
  • the term "substantially” refers to an arrangement of elements or features that, while in theory would be expected to exhibit exact correspondence or behavior, may, in practice embody something less than exact.
  • the term denotes the degree by which a quantitative value, measurement or other related representation may vary from a stated reference without resulting in a change in the basic function of the subject matter at issue.
  • the air knife also includes means for changing the angular orientation of the air knife relative to the machine.
  • the means for varying the thickness of the gap of the air knife may be a sheet of material that is placed between the air outlet of the housing and the surface of the fairing that covers the air outlet.
  • the sheet of material may include one or more flow channels formed in it such that the passage of a flow of air from the plenum and discharge through the gap takes place through the flow channel. Multiple such channels means that the discharged air flow can be spread across the width of the gap between the housing and fairing.
  • the sheet of material may be made up of mylar or some other suitable material.
  • a switching mechanism is placed in cooperative arrangement with the air knife in order that it can selectively operate the air discharged through the gap of the knife. More particularly, the switching mechanism includes one or more sensors placed in signal communication with one or more of the drive wheels, conveyor and gripper bar (or bars). A controller is placed in signal or related electrical communication with the sensor or sensors such that upon receipt of a control signal from the sensor, the controller selectively enables or disables a supply of air to the air knife.
  • a delivery system for a printing device with rotatable printing cylinders includes an air knife such as described above.
  • the delivery system includes a conveying mechanism (for example, a chute, chain-driven conveyor or the like) and numerous drive wheels rotatably mountable adjacent the rotatable printing cylinders.
  • the delivery system is situated in such a way as to readily receive a freshly printed or freshly coated sheet of paper coming from the printing device.
  • the conveying mechanism which, for example, is of an endless, closed-loop construction, is coupled to the drive wheels so that when the wheels turn, they induce the mechanism to move.
  • the conveying mechanism is a chain- driven conveyor
  • one or more gripper bars are coupled to the conveyor so that one or more grippers mounted onto the bar can grasp or otherwise engage the sheet that comes from the rotatable printing cylinders.
  • the conveyor transports the sheet from a first end of the delivery system (which is adjacent the rotatable printing cylinders) to a second end (which is away from the rotatable printing cylinders) and an air knife fluidly coupled to the first end of the delivery system.
  • the air knife is generally similar to that discussed in the previous aspect.
  • the conveying mechanism is a chute-based system, no gripper bar is used. Nevertheless, the air knife still helps the sheet make it onto the conveyor without damaging the wet coated side of the printed sheet.
  • the drive wheels are rigidly coupled to one another with a rotating shaft that extends between them.
  • the width of the rigidly coupled drive wheels define a delivery path that is substantially the same width as the adjacent rotatable printing cylinders.
  • the air knife can be disposed relative to the rotating shaft such that upon discharge of the generally sheet-like pattern of air from the air knife, the sheet that is engaged by the gripper avoids contact with the rotating shaft.
  • an air regulator can be used to vary the amount of flow of air entering into the plenum.
  • a printing device includes a sheet feeder station, a sheet receiving station, a sheet delivery station operatively situated between the sheet feeder and the sheet receiving stations, a printing station cooperative with the sheet feeder station and the sheet delivery station to deliver a printed sheet to the sheet delivery station, and an air knife fluidly coupled to the first end of the delivery system.
  • the sheet delivery station includes drive wheels, a conveyor coupled to the drive wheels and at least one gripper bar (with grippers) coupled to the conveyor. By engaging the sheet, the conveyor transports the sheet from a first end of the delivery station to a second end.
  • the air knife is generally similar to that previously discussed, and functions such that the discharged flow and the entrained ambient air flow substantially together in a generally sheet-like pattern toward the printing station.
  • the printing device is a printing press, while in another it is a coating machine.
  • the conveyor may comprise an endless conveyor.
  • the air knife may be equipped with a device (for example, a motor or a pivoting bracket with numerous preset angular positions) such that the angular orientation of the generally sheet-like pattern of air flow being directed toward the printing station can be varied.
  • a device for example, a motor or a pivoting bracket with numerous preset angular positions
  • the printing device can accommodate sheets of varying thickness, rigidity, size or the like.
  • a method of supporting and conveying a wet sheet that has been discharged from a printing device includes receiving the sheet from one or more rotatable printing cylinders (for example, a printing press impression cylinder), transporting the sheet away from the rotatable printing cylinder(s) with a delivery system such that an air knife cooperative with the delivery system imparts an airflow to the sheet.
  • the air discharged from the air knife helps the sheet substantially avoid contact with the delivery system and other components from the time it leaves the last printing cylinder until the sheet is engaged by the delivery system's gripper.
  • the air knife includes a housing with a plenum, an air inlet and an air outlet.
  • At least a portion of the outer surface of the housing is of a convex shape.
  • a fairing covers and is spaced relative to the air outlet such that a gap formed between them permits air passing through the air outlet to be discharged through the gap and along the convex surface.
  • the air knife is configured to take advantage of the Coanda effect to entrain at least a portion of ambient air surrounding the air knife. In this way, the discharged flow and the entrained ambient air cooperate to flow substantially together in a generally sheet-like pattern that can be delivered to the sheet leaving the rotating cylinder.
  • the method further includes varying the thickness of the gap such that the generally sheet-like pattern of airflow being delivered by the air knife is optimized for a particular sheet.
  • the method further includes varying the angular orientation of the air knife relative to the sheet through a pivotal mounting of the air knife.
  • the method includes varying the linear placement of the air knife along the delivery device, thereby allowing additional adjustability.
  • such linear adjustment can be through a mounting bracket where sliding or related adjustment features can be included.
  • the delivery system may be formed from a conveyor in general, and an endless conveyor in particular, where the conveyor is cooperative with the rotatable printing cylinder(s).
  • the conveyor may be a chain-based system, where numerous wheels in the form of sprockets can be rotated to move the chain.
  • a gripper bar assembly (which includes one or more individual ghppers) can be connected to the conveyor to effect grasping or related engaging of the wet sheets that come off the printing cylinder(s).
  • the amount of flow of air entering into the plenum can be varied through operation of an air regulator.
  • FIG. 1 shows a conventional offset printing press with an optional coating unit, both of which can cooperate with the present invention
  • FIG. 2A shows a conventional delivery wheel used to minimize contact of the newly printed sheets to a conveyor shaft according to the prior art
  • FIG. 2B shows a conventional air blast device used to minimize contact of the newly printed sheets to a conveyor shaft according to the prior art
  • FIG. 3 is a view of an air delivery bar installed in place of a delivery wheel, according to a first embodiment of the present invention
  • FIG. 4 is a perspective view of the air delivery bar of the present invention, configured as an air knife
  • FIG. 5 is a schematic view of the placement and movement of the air knife of FIG. 4 in a paper path of a printing press, coating machine or related system.
  • a conventional printing device configured as an offset printing press 10 is made up of a sheet feeder station 20, printed sheet receiving station 30, printed sheet delivery station (alternately referred to as a delivery system) 40 and printing station 50.
  • Individual sheets 1 to be printed are stacked in the sheet feeder station 20 and fed into the printing station 50, where numerous cylinders, including a plate cylinder 52, blanket cylinder 54 and impression cylinder 56 cooperate to selectively impart printing ink to sheet 1.
  • ink and water rollers 58 are used to coat parts of the paper 1 with their respective fluids, such as is known in the lithographic process. For example, ink is imparted to plate cylinder 52 from a respective ink roller.
  • the blanket cylinder 54 (which may include a rubber mat or blanket mounted on its outer periphery) becomes coated with ink that it picks up from plate cylinder 52, then transfers the image to the impression cylinder 56. The image is then transferred to the paper sheets 1 from the impression cylinder 56.
  • Delivery station 40 includes a pair of chains 42 driven by sprockets 44 that are mounted to shafts 46. One end of the delivery station 40 is juxtaposed with the impression cylinder 56 such that an upper run of the parallel-mounted chains is drawn toward the impression cylinder 56, while the lower run is drawn away.
  • Grippers 48 mounted to the chains 42 grasp and hold the wet sheet 1 as it passes through the cylinders 54 and 56 on its way to the delivery station 40 where, after dried, the printed sheets are stacked for subsequent removal. Although only one gripper 48 is shown, it will be appreciated that in a preferable embodiment, more grippers 48 (for example, three) will be attached to the chains 42.
  • Location A within the delivery station 40 occupies a generally hollow space between the sprockets 44 such that equipment for minimizing contact of the wet sheets 1 with the delivery station 40 can be placed.
  • An optional coating unit 200 can be readily attached to the printing press 10 in order to meter dampening solution on the printing press 10.
  • the coating unit 200 includes a substantially smooth-surfaced form roller 210 in contact with the plate cylinder 52, and a substantially smooth-surfaced metering roller 220 in contact with the form roller 210. Both rollers 210 and 220 are shown with an external drive gears that mesh with one another to ensure a one-to-one rate of rotation between the rollers. Adjustment devices (not shown) can be used to selectively move the metering roller 220 toward or away from the form roller 210 without the need for tools, and while printing press 10 is operating. This allows for the deposition of an aqueous coating (for example, a protective finish) to material being printed by the printing press 10 without requiring a dryer or separate ink train.
  • an aqueous coating for example, a protective finish
  • FIG. 2A one form of wet sheet contact avoidance approach according to the prior art is depicted.
  • the present view is looking along the path of the delivery system from a downstream end to an upstream end, the latter adjacent the output of the one or more printing cylinders in general and the impression cylinder 56 in general.
  • one or more delivery wheels 45 (which may alternately be in the form of a star wheel, skeleton wheel or the like) is mounted onto rotating shaft 46.
  • the shaft 46 which may alternately be in the form of a star wheel, skeleton wheel or the like
  • the delivery wheel 45 keeps the wet ink on the sheet from contacting the shaft 46 and other components.
  • the delivery wheel 45 also can help guide the paper to stations or components downstream of the delivery system 40 such as that shown in FIG. 1.
  • the gripper bars 49 with spring-loaded ghppers 48 take the sheet from the impression cylinder 56 and transport it to a stacked pile (for a printing press) or another conveyor (for a coating machine).
  • the position of the delivery wheel 45 needs to be adjusted, thereby requiring that the press 10 be stopped. In some circumstances, especially where the delivery wheel 45 defines a very small contact area, the delivery wheel 45 may lead to tearing of the freshly printed sheet 1.
  • FIG. 2B another form of wet sheet contact avoidance approach according to the prior art is depicted, where instead of the delivery wheel 45, an air blast device 41 is employed.
  • the air blast device 41 includes a generally T-shaped manifold into which numerous apertures (not shown) are formed. Pressurized air passes through the device 41 and apertures such that the air impinges onto sheet 1 in order to push the sheet 1 away from the shaft 46 used to turn sprockets 44. The ejection of the air from the apertures is generally normal to the generally cylindrical surface of the device 41.
  • Such a discharge pattern while useful to have a flow of pressurized air impinge on the wet sheet 1 exiting the impression cylinder 56, cannot take advantage of external air entrainment through the Coanda effect or related phenomena where the tendency of the boundary layer of a stream of air or other fluid is to remain attached to a curvaceous (specifically convex) rather than proceed along the fluid's original direction.
  • the air blast device 41 may require a significant amount of energy to supply the compressed air needed to keep the sheets 1 away from shaft 46 or other delivery station 40 components.
  • FIG. 3 and 4 an embodiment of the device of the present invention is shown, utilizing an air delivery bar in the form of an air knife 100 in place of the delivery wheel 45 of FIG. 2A or the air blast device 41 of FIG. 2B.
  • the air knife 100 includes an aerodynamically-shaped fairing 1 1 1 A which sandwiches a piece of mylar or related spacing material 1 1 1 B between it and a housing 1 1 1 C, to create a very thin gap 1 12.
  • Housing 1 1 1 C includes a plenum formed in its interior. The plenum forms as the fluid connection between an air inlet 1 13 and one or more air outlets (not shown) that may be in the form of apertures or related orifices in the housing 1 1 1 C.
  • the plenum can be fluidly coupled to an external air source, such as a compressor.
  • Apertures and flow channels can be formed in spacing material 1 1 1 B to allow fluid communication between the air outlet(s) formed in the housing 1 1 1 C and the fairing 1 1 1 A.
  • the thickness of spacing material 1 1 1 B can be changed to vary the amount of air required, which may be necessary for sheets of differing thickness or rigidity. For example, if a user is frequently running heavy sheet stock through the printing press or coating machine, a thicker piece of spacing material 1 1 1 B may be installed.
  • air inlet 1 13 allows (typically compressed) air to pass through the internal plenum such that air that comes from a pressurized air source is routed through air inlet 1 13 and discharged through gap 1 12.
  • the high speed travel of the compressed air through gap 1 12 entrains resident ambient air 1 15, thereby acting as an airflow amplifier.
  • the air knife 100 can be made to rotate, such as by pivoting about an axis that generally coincides with the lateral dimension of the housing 1 1 1 C and fairing 1 1 1 A. Such rotation can be effected by automated (for example a motor) or manual means.
  • a proximity switch 60 that includes a pair of sensors 6OA and 6OB that are connected to a control member (such as a solenoid, not shown) and the air compressor or related external air source (not shown) is used to reduce the duty cycle of the external air source.
  • a control member such as a solenoid, not shown
  • the air compressor or related external air source is used to reduce the duty cycle of the external air source.
  • the change in reflection causes the sensor 6OA to send a signal to the controller to cause the air supply to the air knife 100 to be cut off, thereby avoiding the unnecessary consumption of power to provide air during a period of operation when pressurized air is not required at the air knife 100.
  • the change in reflection causes the sensor 6OB to send a signal to the controller to turn the air supply on, thereby providing compressed air to the air knife 100 during a period of operation when pressurized air is required.
  • a pivoting mount 120 can be used to connect air knife 100 to a bracket 122 that can be mounted within the conveyor or delivery chains of the printing device.
  • the combination of pivoting mount 120 and bracket 122 permits the air knife 100 to be positioned at the appropriate angle to cause the sheet 1 to turn into the delivery station 40 without contact.
  • the bracket 122 used for air knife 100 has adjustments (including the ability to use various thicknesses of mylar or related spacing material 1 1 1 B as discussed above) to enable the operator to change the air curtain 1 14 for varying stock sizes and weights.
  • the use of the bracket 122 and pivoting mount 120 allow the air knife 100 to rotate R about its widthwise axis.
  • Such angle may vary with the nature of the sheet 1 being printed or coated, and can be used to promote turning or bending of the sheet at a desirable time or position without contact of conveyor components.
  • the avoidance of wet ink or coating contact with the underlying machinery also eliminates the need for the operator to clean delivery wheels and related componentry.
  • the operator can also regulate the amount of air that travels through the air knife 100 via regulator (not shown) that is placed on the outside of the machine for different stock sizes and weights. Likewise, varying the angle of impingement of the air curtain 1 14 can assist in ink or coating drying. The cushion of air eliminates the possibility of damage to the surface of the printed or coated sheet.
  • the air knife 100 is suitable for use on plastic or other material, including various sizes and thicknesses.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)

Abstract

L'invention concerne un dispositif de soufflage et des machines d'impression ou de revêtement utilisant celui-ci. Dans une première configuration, le dispositif de soufflage est une lame d'air qui coopère avec un dispositif d'impression tel une presse d'impression, une machine de revêtement ou une machine similaire. Dans une configuration particulière, la lame d'air est située adjacente à un ensemble de cylindres dans le dispositif d'impression, de sorte que, sur une feuille ou un élément associé d'un substrat imprimé que l'on place dans un trajet d'écoulement d'air créé par la lame d'air, une ou plusieurs opérations peuvent être effectuées sur la feuille encore humide après impression ou revêtement, afin de rendre minimal le risque de contact de la surface de feuille humide avec des composants de distribution de feuille ou des composants associés. Des exemples de telles opérations peuvent comprendre le retournement, la flexion ou le pliage de la feuille, ainsi que le séchage de l'encre ou du revêtement placé sur la feuille par les machines d'impression.
EP08747146A 2007-04-30 2008-04-30 Dispositif de soufflage pour des applications d'impression et de revêtement Withdrawn EP2152618A2 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US91484207P 2007-04-30 2007-04-30
US12/111,416 US20080265493A1 (en) 2007-04-30 2008-04-29 Air delivery device for printing and coating applications
PCT/US2008/061967 WO2008134701A2 (fr) 2007-04-30 2008-04-30 Dispositif de soufflage pour des applications d'impression et de revêtement

Publications (1)

Publication Number Publication Date
EP2152618A2 true EP2152618A2 (fr) 2010-02-17

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08747146A Withdrawn EP2152618A2 (fr) 2007-04-30 2008-04-30 Dispositif de soufflage pour des applications d'impression et de revêtement

Country Status (3)

Country Link
US (1) US20080265493A1 (fr)
EP (1) EP2152618A2 (fr)
WO (1) WO2008134701A2 (fr)

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US20080265493A1 (en) 2008-10-30
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