EP0245526A1 - Dust-removing probe for moving webs, especially for paper webs - Google Patents

Dust-removing probe for moving webs, especially for paper webs Download PDF

Info

Publication number
EP0245526A1
EP0245526A1 EP86105867A EP86105867A EP0245526A1 EP 0245526 A1 EP0245526 A1 EP 0245526A1 EP 86105867 A EP86105867 A EP 86105867A EP 86105867 A EP86105867 A EP 86105867A EP 0245526 A1 EP0245526 A1 EP 0245526A1
Authority
EP
European Patent Office
Prior art keywords
web
probe according
probe
movement
plane
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.)
Granted
Application number
EP86105867A
Other languages
German (de)
French (fr)
Other versions
EP0245526B1 (en
Inventor
Ernst A. Hahne
Hermann Künzig
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.)
Eltex Elektrostatik GmbH
Original Assignee
Eltex Elektrostatik GmbH
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 Eltex Elektrostatik GmbH filed Critical Eltex Elektrostatik GmbH
Priority to AT86105867T priority Critical patent/ATE42504T1/en
Priority to DE8686105867T priority patent/DE3662992D1/en
Priority to EP86105867A priority patent/EP0245526B1/en
Priority to US07/043,186 priority patent/US4835808A/en
Priority to JP62108761A priority patent/JPS62290664A/en
Publication of EP0245526A1 publication Critical patent/EP0245526A1/en
Application granted granted Critical
Publication of EP0245526B1 publication Critical patent/EP0245526B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02—Plant or installations having external electricity supply
    • B03C3/04—Plant or installations having external electricity supply dry type
    • B03C3/14—Plant or installations having external electricity supply dry type characterised by the additional use of mechanical effects, e.g. gravity
    • B03C3/145—Inertia
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/32—Transportable units, e.g. for cleaning room air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/38—Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation or flames
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B6/00—Cleaning by electrostatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs

Definitions

  • the invention relates to a dedusting probe according to the preamble of the main claim.
  • dedusting of paper webs by means of dedusting probes is a problem that has not yet been satisfactorily solved.
  • the invention is therefore based on the object of developing a generic dedusting probe in such a way that a high degree of efficiency can be achieved in dedusting.
  • a rapidly moving web for example made of paper, entrains air with increasing speed which moves parallel to the web.
  • a laminar flow which approximately corresponds to the speed of the web and decreases linearly with the distance to the paper web.
  • the blowing air emerging from the blowing nozzle counteracts the moving web and tears the laminar air flow running parallel to the paper web.
  • the negative pressure in the suction channel is dimensioned so that the whirled up dust can be suctioned off.
  • the high-voltage electrode which is arranged inside the probe, discharges both the web and the dust particles, so that an easier detachment by the air from the blowing nozzle and suction through the suction channel is possible.
  • the orientation of the The high-voltage electrode and the blow nozzle are dimensioned so that the two planes intersect in a straight line that lies exactly in the path. The discharge is thus optimally effected in this line. At the same time, the air attacks there like a squeegee, which can cause the dust particles to be loosened.
  • the arrangement of the suction channel counter to the direction of movement of the web and in the blowing direction of the blowing nozzle in the lower region near the web also ensures that the swirled up dust particles can be suctioned off without problems.
  • the orientation of the inflow direction of the channel openings of the suction channel which lie in a fourth plane, which forms an acute angle with the web, also contributes to this purpose.
  • a metal field plate is preferably mounted on the other side of the track with respect to the probe, which is connected to a high-voltage generator with variable voltage and frequency. This alternating field increases the forces between the dust particle and the web. Furthermore, the flow speed of the blowing and suction air can be adjusted depending on the speed of the web.
  • a preferred embodiment of a dedusting probe is shown in the single figure, which shows a cross section through a dedusting probe according to the invention.
  • the probe denoted overall by 5, encloses between itself and a metallic field plate 6 a rapidly moving web 7, preferably on paper, which moves according to the directional arrow 8.
  • the dedusting probe 5 has a trapezoidal cut 9 in a section running parallel to the direction of movement 8.
  • a high-voltage electrode generally designated 10
  • a blowing nozzle Arranged at the rear end of the probe 5 in the direction of movement 8 is a blowing nozzle, designated as a whole by 11, which has point-shaped and / or slit-shaped individual nozzles 12 which lie in a second plane.
  • These second and first planes intersect in a straight line which lies in the path 7 and runs transversely, preferably at right angles to the direction of movement 8.
  • a suction duct Arranged at the front end of the probe in the direction of movement is a suction duct, generally designated 13, which has punctiform and / or slit-shaped duct openings 14, the inflow direction of which lies in a fourth plane, which includes an acute angle with the direction of movement of the web.
  • the individual nozzles 12 of the blow nozzle 11 and the channel openings 14 of the suction channel 13 are arranged in the region of the legs of the trapezoidal recess 9, close to the longer base line.
  • the probe 5 has in front of the trapezoidal recess 9 and thereafter one ground electrode 15 and 16, respectively, opposite the web, arranged on the underside of the probe 5 and extending over its entire width.
  • the grounding electrode can have a multiplicity of point-shaped and / or blade-shaped individual electrodes which extend transversely to the direction of movement 8, preferably perpendicularly thereto, via the ge extend the entire width of the probe and thus the web.
  • the field plate 6, which extends parallel to the extent of the web 7, is connected to an AC voltage source and can be set between 0 and 10 kV and 0-10 kHz.
  • the high-voltage electrode 10 is also connected to a positive and negative direct or alternating voltage, which can optionally be set separately.
  • the tensions and the flow velocity of the air emerging from the blowing nozzle 11 as well as the negative pressure in the suction channel can be adjusted depending on the speed of the web 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Electrostatic Separation (AREA)
  • Advancing Webs (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Abstract

1. Probe for the removal of dust from moving web members, preferably of paper, with at least one electrostatic high-voltage electrode and at least one blow nozzle for gas, preferably air, arranged opposed to the direction of movement of the web member, and a suction channel for the dust-bearing gas, characterized in that the pointed or blade-like individual electrodes of the high-voltage electrode (10) lie in a first plane nor parallel to the web member (7), that the direction of blowing of the row of individual nozzles (12) embodied in the shape of points and/or slits of the blow nozzle (11) lies in a second plane, that the blow nozzle (11) lies in the direction of movement (8) of the web member (7) behind the first high-voltage electrode (10), that the first and the second planes intersect in a straight line that lies in the plane of the web member (7) and runs across the latter, and that the point- and/or slit-shaped channel openings (14) of the suction channel (13) are arranged in the direction of movement (8) in front of the high-voltage electrode.

Description

Die Erfindung betrifft eine Entstaubungssonde gemäß dem Oberbegriff des Hauptanspruchs.The invention relates to a dedusting probe according to the preamble of the main claim.

Die Entstaubung von Papierbahnen mittels Entstaubungsson­den ist ein bis heute noch nicht befriedigend gelöstes Problem.The dedusting of paper webs by means of dedusting probes is a problem that has not yet been satisfactorily solved.

Der Efindung liegt deshalb die Aufgabe zugrunde, eine gattungsgemäße Entstaubungssonde so weiterzubilden, daß ein hoher Wirkungsgrad bei der Enstaubung erzielt wer­den kann.The invention is therefore based on the object of developing a generic dedusting probe in such a way that a high degree of efficiency can be achieved in dedusting.

Diese Aufgabe wird bei einer gattungsgemäßen Sonde gemäß dem Oberbegriff des Hauptanspruchs erfindungsgemäß durch dessen kennzeichnende Merkmale gelöst.This object is achieved in a generic probe according to the preamble of the main claim according to the invention by its characterizing features.

Eine schnell bewegte Bahn, beispielsweise aus Papier reißt mit zunehmender Geschwindigkeit Luft mit sich, die sich parallel zu der Bahn bewegt. Unmittelbar im Bereich ei­niger hunderstel Millimeter über der Bahn besteht hier­bei eine laminare Strömung, die annähernd der Geschwin­digkeit der Bahn entspricht und linear mit dem Abstand zur Papierbahn abnimmt. Die aus der Blasdüse austretende An­blasluft wirkt hierbei der bewegten Bahn entgegen und reißt die parallel zur Papierbahn verlaufende, faßt lami­nare Luftströmung auf. Dadurch wird der Staub, der sich in dieser Luftströmung bewegt sowie auch der nicht sehr stark anhaftende Staub von der Bahn aufgewirbelt und in Richtung des Absaugkanales gedrängt. Der Unterdruck in dem Absaugkanal ist so bemessen, daß der aufgewirbelte Staub abgesaugt werden kann. Die Hochspannungseleketrode, die im inneren der Sonde angeordnet ist, werden sowohl die Bahn als auch die Staubpartikel entladen, so daß ein leichte­res Ablösen durch die Luft von der Blasdüse und Absaugung durch den Saugkanal möglich wird. Die Ausrichtung der Hochspannungselektrode und der Blasdüse ist so bemessen, daß sich die beiden Ebenen in einer Geraden schneiden, die genau in der Bahn liegt. In dieser Linie wird also die Entladung optimal bewirkt. Zugleich greift dort die Luft nach Art eines Rakels an, wodurch das Lösen der Staub­partikel bewirkt werden kann. Durch die Anordnung des Ab­saugkanals entgegen der Bewegungsrichtung der Bahn und in Blasrichtung der Blasdüse im unteren Bereich nahe der Bahn ist ferner sichergestellt, daß die aufgewirbelten Staubpartikelchen problemlos abgesaugt werden können. Zu diesem Zweck trägt auch die Ausrichtung der Einströmrich­tung der Kanalöffnungen des Absaugkanals bei, die in ei­ner vierten Ebene liegen, die mit der Bahn einen spitzen Winkel einschließt.A rapidly moving web, for example made of paper, entrains air with increasing speed which moves parallel to the web. Immediately in the range of a few hundredths of a millimeter above the web there is a laminar flow which approximately corresponds to the speed of the web and decreases linearly with the distance to the paper web. The blowing air emerging from the blowing nozzle counteracts the moving web and tears the laminar air flow running parallel to the paper web. As a result, the dust that moves in this air flow and also the not very strongly adhering dust are whirled up by the web and forced in the direction of the suction channel. The negative pressure in the suction channel is dimensioned so that the whirled up dust can be suctioned off. The high-voltage electrode, which is arranged inside the probe, discharges both the web and the dust particles, so that an easier detachment by the air from the blowing nozzle and suction through the suction channel is possible. The orientation of the The high-voltage electrode and the blow nozzle are dimensioned so that the two planes intersect in a straight line that lies exactly in the path. The discharge is thus optimally effected in this line. At the same time, the air attacks there like a squeegee, which can cause the dust particles to be loosened. The arrangement of the suction channel counter to the direction of movement of the web and in the blowing direction of the blowing nozzle in the lower region near the web also ensures that the swirled up dust particles can be suctioned off without problems. The orientation of the inflow direction of the channel openings of the suction channel, which lie in a fourth plane, which forms an acute angle with the web, also contributes to this purpose.

Ferner ist mit Vorzug auf der anderen Seite der Bahn be­züglich der Sonde eine metalliche Feldplatte montiert, die an einen Hochspannungsgenerator mit variabler Span­nung und Frequenz angeschlossen ist. Durch dieses Wech­selfeld werden die Kräfte zwischen Staubpartikel und Bahn augehoben. Ferner können in Abhängigkeit von der Geschwin­digkeit der Bahn die Strömungsgeschwindigkeit der Blas­und Saugluft eingestellt werden.Furthermore, a metal field plate is preferably mounted on the other side of the track with respect to the probe, which is connected to a high-voltage generator with variable voltage and frequency. This alternating field increases the forces between the dust particle and the web. Furthermore, the flow speed of the blowing and suction air can be adjusted depending on the speed of the web.

Andere zweckmäßige Ausgestaltungen und Weiterbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet. Ein bevorzugtes Ausführungsbeispiel einer Entstaubungssonde ist in der einzigen Figur dargestellt, die einen Quer­schnitt durch eine erfindungsgemäße Entstaubungssonde zeigt.Other expedient refinements and developments of the invention are characterized in the subclaims. A preferred embodiment of a dedusting probe is shown in the single figure, which shows a cross section through a dedusting probe according to the invention.

Die insgesamt mit 5 bezeichnete Sonde schließt zwischen sich und einer metallischen Feldplatte 6 eine schnellbe­wegte Bahn 7, vorzugsweise auf Papier ein, die sich gemäß Richtungspfeil 8 bewegt.The probe, denoted overall by 5, encloses between itself and a metallic field plate 6 a rapidly moving web 7, preferably on paper, which moves according to the directional arrow 8.

Die Entstaubungssonde 5 weist - in parallel zur Bewegungs­richtung 8 verlaufenden - Schnitt eine trapezförmige Aus­nehmung 9 auf. An der kürzeren Grundlinie ist eine insge­samt mit 10 bezeichnete Hochspannungseletrode in Form ei­ner Vielzahl längs einer Geraden angeordneten spitzenför­migen Einzelektroden oder einer durchlaufenden klingen­förmigen Elektrode, die in einer ersten Ebene liegen, die senkrecht zur Bewegungsrichtung 8 der Bahn 7 verläuft. Am in Bewegungsrichtung 8 hinteren Ende der Sonde 5 ist eine insgesamt mit 11 bezeichnete Blasdüse angeordnet, die punkt- und/oder schlitzförmig ausgebildete Einzeldüsen 12 aufweist, die in einer zweiten Ebene liegen. Diese zweite und die erste Ebene schneiden sich in einer Geraden, die in der Bahn 7 liegt und quer, vorzugsweise rechtwinklig zur Bewegungsrichtung 8 verläuft.The dedusting probe 5 has a trapezoidal cut 9 in a section running parallel to the direction of movement 8. On the shorter base line is a high-voltage electrode, generally designated 10, in the form of a plurality of point-shaped individual electrodes arranged along a straight line or a continuous blade-shaped electrode which lie in a first plane which runs perpendicular to the direction of movement 8 of the path 7. Arranged at the rear end of the probe 5 in the direction of movement 8 is a blowing nozzle, designated as a whole by 11, which has point-shaped and / or slit-shaped individual nozzles 12 which lie in a second plane. These second and first planes intersect in a straight line which lies in the path 7 and runs transversely, preferably at right angles to the direction of movement 8.

Am in Bewegungrichtung vorderen Ende der Sonde ein insge­samt mit 13 bezeichneter Absaugkanal angeordnet ist, der punkt- und/oder schlitzförmige Kanalöffnungen 14 aufweist, deren Einströmrichtung in einer vierten Ebene liegt, die mit der Bewegungsrichtung der Bahn einen spitzen Winkel einschließt.Arranged at the front end of the probe in the direction of movement is a suction duct, generally designated 13, which has punctiform and / or slit-shaped duct openings 14, the inflow direction of which lies in a fourth plane, which includes an acute angle with the direction of movement of the web.

Die Einzeldüsen 12 der Blasdüse 11 und die Kanalöffnungen 14 des Absaugkanals 13 sind im Bereich der Schenkel der trapezförmigen Ausnehmung 9, nahe an der längeren Grund­linie angeordnet.The individual nozzles 12 of the blow nozzle 11 and the channel openings 14 of the suction channel 13 are arranged in the region of the legs of the trapezoidal recess 9, close to the longer base line.

Ferner weist die Sonde 5 in Bewegungsrichtung 8 der Bahn 7 vor der trapezförmigen Ausnehmung 9 und danach je eine der Bahn gegenüberliegende, auf der Unterseite der Sonde 5 angeordnete und sich über deren gesamte Breite erstrek­kende Erdungselektrode 15 bzw. 16 auf. Die Erdungselektro­de kann eine Vielzahl von spitzen- und/oder klingenförmi­gen Einzelelektroden aufweisen, die sich quer zur Bewe­gungsrichtung 8, vorzugsweise senkrecht dazu über die ge­ samte Breite der Sonde und damit der Bahn erstrecken.Furthermore, in the direction of movement 8 of the web 7, the probe 5 has in front of the trapezoidal recess 9 and thereafter one ground electrode 15 and 16, respectively, opposite the web, arranged on the underside of the probe 5 and extending over its entire width. The grounding electrode can have a multiplicity of point-shaped and / or blade-shaped individual electrodes which extend transversely to the direction of movement 8, preferably perpendicularly thereto, via the ge extend the entire width of the probe and thus the web.

Die Feldplatte 6, die sich parallel zur Erstreckung der Bahn 7 erstreckt, ist an eine Wechselspannungsquelle an­geschlossen und zwischen 0 und 10 kV sowie 0-10 kHz ein­stellbar. Die Hochspannungselektrode 10 liegt zugleich an einer positiven und negativen Gleich- oder Wechselspannung, die gegebenenfalls separat einstellbar sind.The field plate 6, which extends parallel to the extent of the web 7, is connected to an AC voltage source and can be set between 0 and 10 kV and 0-10 kHz. The high-voltage electrode 10 is also connected to a positive and negative direct or alternating voltage, which can optionally be set separately.

Die Spannungen sowie die Strömgeschwindigkeit der aus der Blasdüse 11 austretenden Luft sowie der Unterdruck in dem Absaugkanal können in Abhängigkeit von der Geschwindig­keit der Bahn 7 eingestellt werden.The tensions and the flow velocity of the air emerging from the blowing nozzle 11 as well as the negative pressure in the suction channel can be adjusted depending on the speed of the web 7.

Claims (24)

1. Sonde für die Entstaubung von bewegten Bahnen, vor­zugweise auf Papier, mit zumindest einer elektrosta­tischen Hochspannungselektrode und zumindest einer entgegen der Bewegungsrichtung der Bahn angestell­ten Blasdüse für Gas, vorzugsweise Luft sowie einem Absaugkanal für das den Staub tragende Gas, da­durch gekennzeichnet, daß die als spitzen- und/oder klingenförmig ausgebildeten Einzelelektroden der Hochspannungselektrode (10) in einer zur Bahn (7) nicht parallelen ersten Ebene liegen, daß die Blasrichtung der Reihe punkt- und/­oder schlitzförmig ausgebildeter Einzeldüsen (12) der Blasdüse (11) in einer zweiten Ebene liegt, daß die Blasdüse (11) in Bewegungsrichtung (8) der Bahn (7) hinter der Hochspannungselektrode (10) liegt, daß sich die erste und die zweite Ebene in einer Geraden schneiden, die in der Ebene der Bahn (7) liegt und quer zu dieser verläuft und daß die punkt- und/oder schlitzförmigen Kanalöffnungen (14) des Absaugkanals (13) in Bewegungsrichtung (8) vor der Hochspannungselektrode (10) angeordnet ist.1. Probe for the dedusting of moving webs, preferably on paper, with at least one electrostatic high-voltage electrode and at least one blowing nozzle for gas, preferably air, which is set against the direction of movement of the web, and a suction channel for the gas carrying the dust, characterized in that the as Pointed and / or blade-shaped individual electrodes of the high-voltage electrode (10) lie in a first plane that is not parallel to the web (7), that the blowing direction of the row of point-shaped and / or slit-shaped individual nozzles (12) of the blowing nozzle (11) are in a second Plane is that the blowing nozzle (11) is in the direction of movement (8) of the web (7) behind the high-voltage electrode (10), that the first and second planes intersect in a straight line that lies in the plane of the web (7) and runs transversely to this and that the punctiform and / or slit-shaped channel openings (14) of the suction channel (13) in the direction of movement (8) before the high voltage gselektrode (10) is arranged. 2. Sonde nach Anspruch 1, dadurch gekenn­zeichnet, daß die Einzelelektroden zur Bahn (7) in einem Winkel von 90° ± 30° liegen.2. Probe according to claim 1, characterized in that the individual electrodes to the web (7) are at an angle of 90 ° ± 30 °. 3. Sonde nach einem der Anspruch 1 oder 2, dadurch ge­kennzeichnet, daß bei spitzenförmigen Einzelelektroden diese parallel zueinander in der er­sten Ebene verlaufen.3. Probe according to one of claims 1 or 2, characterized in that in the case of pointed individual electrodes, these run parallel to one another in the first plane. 4. Sonde nach einem der Ansprüche 1 bis 4, da­durch gekennzeichnet, daß die Hochspannungselektrode (10) bzw die Einzelelektroden mit einer positiven und negativen Gleich- oder Wechsel­spannung arbeiten.4. Probe according to one of claims 1 to 4, characterized in that the high voltage electrode (10) or the individual electrodes work with a positive and negative direct or alternating voltage. 5. Sonde nach Anspruch 4, dadurch gekenn­zeichnet, daß die Spannung 2-10 kV beträgt.5. Probe according to claim 4, characterized in that the voltage is 2-10 kV. 6. Sonde nach Anspruch 1, dadurch gekenn­zeichnet, daß die Blasdüse (11) neben der ersten Reihe von Einzeldüsen eine zweite Reihe von punkt- und/oder schlitzförmig ausgebildeten Einzeldü­sen aufweist, die in einer dritten Ebene liegen, die sich mit der Geraden als Schnitt der ersten und zwei­ten Ebene schneidet.6. A probe according to claim 1, characterized in that the blowing nozzle (11) in addition to the first row of individual nozzles has a second row of point-shaped and / or slit-shaped individual nozzles, which lie in a third plane, with the straight line as a cut the first and second levels intersects. 7. Sonde nach einem der Ansprüche 1 bis 6, da­durch gekennzeichnet, daß die zweite und dritte Ebene mit der Bewegungsrichtung der Bahn einen Winkel von 30° bzw. 45° einschließt.7. Probe according to one of claims 1 to 6, characterized in that the second and third planes form an angle of 30 ° and 45 ° with the direction of movement of the web. 8. Sonde nach Anspruch 7, dadurch gekenn­zeichnet, daß die punktförmigen, d.h. als Bohrungen ausgebildeten Einzeldüsen (12) zueinander parallel in der zweiten oder dritten Ebene angeordnet sind.8. A probe according to claim 7, characterized in that the punctiform, ie designed as bores, individual nozzles (12) are arranged parallel to each other in the second or third plane. 9. Sonde nach Anspruch 1, dadurch gekenn­zeichnet, daß die Gerade als Schnitt der er­sten und zweiten Ebene senkrecht zur Bewegungsrichtung (8) der Bahn (7) verläuft.9. A probe according to claim 1, characterized in that the straight line as a section of the first and second planes runs perpendicular to the direction of movement (8) of the web (7). 10. Sonde nach Anspruch 1, dadurch gekenn­zeichnet, daß die Kanalöffnungen (15) nahe der Bahn (7) münden.10. A probe according to claim 1, characterized in that the channel openings (15) close to the web (7). 11. Sonde nach Anspruch 10, dadurch ge­kennzeichnet, daß die Einströmrichtung aller Kanalöffnungen (14) des Absaubkanals (13) in einer vierten Ebene liegen, die mit der Bewegungs­richtung der Bahn einen spitzen Winkel einschließen.11. A probe according to claim 10, characterized in that the inflow direction of all channel openings (14) of the suction channel (13) lie in a fourth plane, which enclose an acute angle with the direction of movement of the web. 12. Sonde nach Anspruch 11, dadurch ge­kennzeichnet, daß der spitze Winkel (20) bis 70° beträft.12. A probe according to claim 11, characterized in that the acute angle (20) is up to 70 °. 13. Sonde nach einem der Ansprüche 1 bis 12, da­durch gekennzeichnet, daß die Sonde (5) im Querschnitt eine trapezförmige Ausspa­rung (9) aufweist, wobei die längere Grundlinie der Bahn (7) gegenüberliegt, an der kürzeren Grundlinie das Ende der Hochspannungselektrode (10) angeordnet ist und der eine Schenkel die Blasdüse (11) und der andere Schenkel die Einströmöffnung des Absaugkanals (13) aufweist.13. Probe according to one of claims 1 to 12, characterized in that the probe (5) has a trapezoidal cutout (9) in cross section, the longer base line of the web (7) lying opposite, on the shorter base line the end of the high-voltage electrode ( 10) is arranged and one leg has the blowing nozzle (11) and the other leg has the inflow opening of the suction channel (13). 14. Sonde nach Anspruch 13, dadurch ge­kennzeichnet, daß die Einströmöffnung (14) des Absaugkanals (13) am unteren Ende des einen Schenkels angeordnet ist.14. A probe according to claim 13, characterized in that the inflow opening (14) of the suction channel (13) is arranged at the lower end of one leg. 15. Sonde nach einem der Ansprüche 1 bis 14, da­durch gekennzeichnet, daß in Bewegungsrichtung (8) vor dem Absaugkanal (13) und hinter der Blasdüse (11) je eine Erdungselektrode (15) bzw. (16) angeordnet ist.15. Probe according to one of claims 1 to 14, characterized in that in Direction of movement (8) in front of the suction channel (13) and behind the blowing nozzle (11), a grounding electrode (15) or (16) is arranged. 16. Sonde nach Anspruch 15, dadurch ge­kennzeichnet, daß die Erdungselektrode (15) bzw. (16) auf der Unterseite der Sonde (5) der Bahn (7) gegenüberliegend angeordnet sind sowie sich über die gesamte Breite der Sonde erstrecken.16. A probe according to claim 15, characterized in that the grounding electrode (15) or (16) on the underside of the probe (5) of the web (7) are arranged opposite one another and extend over the entire width of the probe. 17. Sonde nach Anspruch 16, dadurch ge­kennzeichnet, daß die Erdungselektroden spitzen- und/oder klingenförmig ausgebildet sind.17. A probe according to claim 16, characterized in that the ground electrodes are tip-shaped and / or blade-shaped. 18. Sonde nach Anspruch 16 oder 17, dadurch gekennzeichnet, daß die Erdungselek­troden (15) bzw. (16) der Sonde (5) außerhalb der trapezförmigen Ausnehmung (5) angeordnet sind.18. A probe according to claim 16 or 17, characterized in that the grounding electrodes (15) or (16) of the probe (5) are arranged outside the trapezoidal recess (5). 19. Sonde nach einem der Ansprüche 1 bis 18, da­durch gekennzeichnet, daß auf der bezüglich der Sonde anderen Seite, der Rückseite der Bahn (7) eine metallische Feldplatte (6) angeord­net ist, die an eine elektrische Wechselspannungsquel­le anschließbar ist.19. Probe according to one of claims 1 to 18, characterized in that on the other side with respect to the probe, the back of the web (7) a metallic field plate (6) is arranged, which can be connected to an electrical AC voltage source. 20. Sonde nach einem der Ansprüche 1 bis 19, da­durch gekennzeichnet, daß die Feldplatte (6) parallel zur Bahn liegt.20. Probe according to one of claims 1 to 19, characterized in that the field plate (6) is parallel to the track. 21. Sonde nach Anspruch 19, dadurch ge­kennzeichnet, daß die Wechselspannungs­quelle zwischen 0 und 10 kV sowie bis 0-10 kHz ein­stellbar ist.21. Probe according to claim 19, characterized in that the AC voltage source is adjustable between 0 and 10 kV and up to 0-10 kHz. 22. Sonde nach einem der Ansprüche 1 bis 21, da­durch gekennzeichnet, daß in Bewegungsrichtung (8) der Bahn (7) unmittelbar vor der Sonde (5) eine sich quer über die Bahn erstrek­kender Absaugschlitz angeordnet ist.22. A probe according to any one of claims 1 to 21, characterized in that in the direction of movement (8) of the web (7) immediately in front of the probe (5) a suction slit extending across the web is arranged. 23. Sonde nach einem der Ansprüche 1 bis 21, da­durch gekennzeichnet, daß in Bewegungsrichtung (8) der Bahn (7) unmittelbar nach der Sonde (5) eine sich quer über die Bahn (7) er­streckender Absaugschlitz angeordnet ist.23. A probe according to one of claims 1 to 21, characterized in that in the direction of movement (8) of the web (7) immediately after the probe (5) is arranged a suction slot extending transversely across the web (7). 24. Sonde nach einem der Ansprüche 1 bis 23, da­durch gekennzeichnet, daß der Absaugschlitz mit der Bahn (7) einen Winkel von ca. 40° bis 60° bildet.24. Probe according to one of claims 1 to 23, characterized in that the suction slot forms an angle with the web (7) of approximately 40 ° to 60 °.
EP86105867A 1986-04-29 1986-04-29 Dust-removing probe for moving webs, especially for paper webs Expired EP0245526B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AT86105867T ATE42504T1 (en) 1986-04-29 1986-04-29 PROBE FOR DUST REMOVAL FROM MOVING WEBS, PREFERABLY MADE OF PAPER.
DE8686105867T DE3662992D1 (en) 1986-04-29 1986-04-29 Dust-removing probe for moving webs, especially for paper webs
EP86105867A EP0245526B1 (en) 1986-04-29 1986-04-29 Dust-removing probe for moving webs, especially for paper webs
US07/043,186 US4835808A (en) 1986-04-29 1987-04-27 Probe for removing dust from moving webs
JP62108761A JPS62290664A (en) 1986-04-29 1987-04-30 Probe for removing dust from web

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP86105867A EP0245526B1 (en) 1986-04-29 1986-04-29 Dust-removing probe for moving webs, especially for paper webs

Publications (2)

Publication Number Publication Date
EP0245526A1 true EP0245526A1 (en) 1987-11-19
EP0245526B1 EP0245526B1 (en) 1989-04-26

Family

ID=8195092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105867A Expired EP0245526B1 (en) 1986-04-29 1986-04-29 Dust-removing probe for moving webs, especially for paper webs

Country Status (5)

Country Link
US (1) US4835808A (en)
EP (1) EP0245526B1 (en)
JP (1) JPS62290664A (en)
AT (1) ATE42504T1 (en)
DE (1) DE3662992D1 (en)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820931A1 (en) * 1988-06-21 1989-12-28 Peter Kist Method for electrostatic surface discharge and de-dusting of materials and device for implementing the method
EP0395864A2 (en) * 1989-04-29 1990-11-07 Eltex-Elektrostatik Gesellschaft mbH Device for removal of dust in fold apparatus of printing machines
WO1991012095A1 (en) * 1990-02-14 1991-08-22 Kodak Limited Web cleaning apparatus
EP0520145A1 (en) * 1991-06-25 1992-12-30 Eltex-Elektrostatik Gesellschaft mbH Device for dust removal
DE4124672A1 (en) * 1991-07-25 1993-01-28 Ahlbrandt Andreas DEVICE FOR REMOVING DUST PARTICLES ON MATERIALS
EP0565811A1 (en) * 1992-04-13 1993-10-20 Shinko Co., Ltd. Dust removing system for panellike bodies
WO1996007490A1 (en) * 1994-09-06 1996-03-14 R. Schneider Consulting & Development Removing dust particles from a relatively moving material web
GB2315242A (en) * 1996-07-17 1998-01-28 Lambson Developments Limited A Printing Process
US6148831A (en) * 1996-10-25 2000-11-21 Valmet Corporation Method for cleaning a web
EP1108537A2 (en) * 1999-12-01 2001-06-20 Koenig & Bauer Aktiengesellschaft Method and device for treating the surface of printable supports in printing presses
DE10004305A1 (en) * 2000-02-01 2001-08-02 Heidelberger Druckmasch Ag Process for vacuum removal of particles formed by continuous slitting of web material, such as on rotary printing machines
GB2372962A (en) * 2001-03-05 2002-09-11 Lambson Developments Ltd A printing process and apparatus
EP1344578A2 (en) 2002-03-13 2003-09-17 Heidelberger Druckmaschinen Aktiengesellschaft Cutting device with a dedusting device in the folding apparatus of a web processing printing machine
US6912942B2 (en) 2000-02-01 2005-07-05 Goss International Montataire S.A. Method and device for removing particles from webs of material
EP1724386A1 (en) * 2005-05-12 2006-11-22 Hanns Glass Gmbh & Co. Kg Suction device for removing unflocked fibres
DE102005043676A1 (en) * 2005-09-03 2007-03-22 Man Roland Druckmaschinen Ag Process to cut paper web into single sheets in a sheet-fed rotary press using dynamically-regulated laser beam
EP1852192A2 (en) * 2006-05-02 2007-11-07 Trinc.Org Dust remover
DE102007052573A1 (en) * 2007-11-03 2009-05-14 Manroland Ag Damping system i.e. centrifuge damping system, for use in offset rotary printing press, has wiping off mechanism that is discharge electrode arrangement cooperated with lateral surface of cylinder
DE102012109200A1 (en) * 2012-09-28 2014-04-03 Dr. Schneider Kunststoffwerke Gmbh Method for post-processing of plastic portion produced by in-mold decoration process, involves supplying ionized air flow to side of plastic portion and departing plastic portion counter with sharp tool for plastic portion contour finishing
DE102016119055A1 (en) * 2016-10-07 2018-04-12 Ideego Gmbh Cleaning device for a surface of a cylinder of a printing and / or copying machine

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5187635A (en) * 1987-12-28 1993-02-16 American Environmental Systems, Inc. Surface cleaning apparatus and method
GB2227086B (en) * 1989-01-17 1992-05-20 Delco Electronic Overseas Corp Destaticising and cleaning apparatus
US5035331A (en) * 1989-08-14 1991-07-30 Paulson Jerome I Method and apparatus for removing dust and debris from particulate product
US5421901A (en) * 1990-02-14 1995-06-06 Eastman Kodak Company Method and apparatus for cleaning a web
US5145297A (en) * 1990-11-07 1992-09-08 Northrop Corporation System and method for particulate matter removal
DE4102276C1 (en) * 1991-01-26 1992-07-02 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
US5211760A (en) * 1992-04-15 1993-05-18 Xerox Corporation Paper cleaner subsystem
US5602817A (en) * 1994-04-15 1997-02-11 Kolbe-Podwil Sonics, Inc. Apparatus and method for enhancing playback fidelity of compact disks
US5635031A (en) * 1995-07-06 1997-06-03 Valmet Corporation Method in a paper machine or in a finishing device of a paper machine for collecting and removing dust separated from a web
FI104099B (en) * 1996-10-25 1999-11-15 Valmet Corp Method and apparatus for removing dust from a paper machine or the like or a post-treatment device thereof
US5980646A (en) * 1997-03-13 1999-11-09 Derosa; Richard D. Continuous web cleaner
DE19711342C2 (en) * 1997-03-18 1999-01-21 Eltex Elektrostatik Gmbh Active discharge electrode
FI111475B (en) 1997-09-24 2003-07-31 Metso Paper Inc Method and arrangement for controlling fog and dust in paper and board manufacturing and finishing
JP3501343B2 (en) * 1998-05-13 2004-03-02 株式会社リコー Dust removal device
KR100304626B1 (en) * 1998-06-02 2001-09-29 윤종용 Debris Removal Device for Disk Drives
FI105052B (en) 1998-07-08 2000-05-31 Valmet Corp Process for making paper, apparatus for carrying out the process and a paper product made by the process
US6543078B1 (en) * 2000-07-24 2003-04-08 Eastman Kodak Company Apparatus and method for cleaning object having generally irregular surface features
US6490746B1 (en) * 2000-07-24 2002-12-10 Eastman Kodak Company Apparatus and method for cleaning objects having generally irregular, undulating surface features
US20030231579A1 (en) * 2001-01-05 2003-12-18 Ky Tan Method for enhancing music signal fidelity derived from a compact disk
DE20104271U1 (en) * 2001-03-13 2001-05-31 Heidelberger Druckmasch Ag Printing unit with a device for disposing of particles and machine processing flat substrates with such a printing unit
US6673003B2 (en) * 2001-05-09 2004-01-06 The Procter & Gamble Company Vacuum cleaning folding rail
US6868785B2 (en) 2002-03-13 2005-03-22 Goss International Corporation De-Duster for a moving printing material web and cutting device, folder and printing press having the de-duster
JP4506629B2 (en) * 2005-09-26 2010-07-21 東レ株式会社 Method for producing thermoplastic resin film and thermoplastic resin film
DE102011007472A1 (en) * 2011-04-15 2012-10-18 Aktiebolaget Skf Apparatus and method for cleaning a surface
JP5893882B2 (en) * 2011-09-28 2016-03-23 東京エレクトロン株式会社 Particle collection device and particle collection method
TW201334880A (en) * 2012-02-29 2013-09-01 Hon Hai Prec Ind Co Ltd LED light bar cleansing system and apparatus with the cleansing system thereof
JP6398497B2 (en) * 2014-09-08 2018-10-03 富士ゼロックス株式会社 Printing device
CN104399711A (en) * 2014-10-30 2015-03-11 苏州德鲁森自动化***有限公司 Liquid crystal glass substrate dust removal method
CN107695035B (en) * 2017-04-19 2023-10-31 咸宁南玻光电玻璃有限公司 Electrostatic dust removal system for cold end production line
US11331698B1 (en) 2017-12-12 2022-05-17 Richard D. DeRosa Self-contained web cleaning apparatus

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1244263A (en) * 1969-12-01 1971-08-25 Koenig & Bauer Schnellpressfab Apparatus for cleaning paper webs
DE1786277A1 (en) * 1968-09-10 1972-01-20 Hans Gruenenfelder Device for the electrostatic discharge of moving material webs and their simultaneous dedusting
US3917470A (en) * 1970-09-28 1975-11-04 Pavel Xmris Electrostatic precipitator

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2818595A (en) * 1953-09-11 1958-01-07 Oxy Dry Sprayer Corp Apparatus for cleaning paper for printing
US2920987A (en) * 1958-01-24 1960-01-12 Norton Co Electrostatic device
US3074086A (en) * 1959-02-04 1963-01-22 Tribune Company Apparatus for removing dust from paper webs
US3239863A (en) * 1963-08-19 1966-03-15 Thomas A Gardner Pressure gradient web cleaning apparatus
US3395042A (en) * 1966-03-18 1968-07-30 William C. Herbert Jr. Paper-cleaning apparatus
US4198061A (en) * 1978-03-06 1980-04-15 Dunn Robert E Electrostatic-vacuum record cleaning apparatus
FR2430304A1 (en) * 1978-07-05 1980-02-01 Saint Gobain CLEANING PLASTIC SHEETS
US4454621A (en) * 1982-01-15 1984-06-19 Static Inc. Sheet and web cleaner
US4677704A (en) * 1986-04-22 1987-07-07 Huggins Richard A Cleaning system for static charged semiconductor wafer surface

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1786277A1 (en) * 1968-09-10 1972-01-20 Hans Gruenenfelder Device for the electrostatic discharge of moving material webs and their simultaneous dedusting
GB1244263A (en) * 1969-12-01 1971-08-25 Koenig & Bauer Schnellpressfab Apparatus for cleaning paper webs
US3917470A (en) * 1970-09-28 1975-11-04 Pavel Xmris Electrostatic precipitator

Cited By (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820931A1 (en) * 1988-06-21 1989-12-28 Peter Kist Method for electrostatic surface discharge and de-dusting of materials and device for implementing the method
EP0395864A2 (en) * 1989-04-29 1990-11-07 Eltex-Elektrostatik Gesellschaft mbH Device for removal of dust in fold apparatus of printing machines
EP0395864A3 (en) * 1989-04-29 1991-10-30 Eltex-Elektrostatik Gesellschaft mbH Device for removal of dust in fold apparatus of printing machines
WO1991012095A1 (en) * 1990-02-14 1991-08-22 Kodak Limited Web cleaning apparatus
EP0520145A1 (en) * 1991-06-25 1992-12-30 Eltex-Elektrostatik Gesellschaft mbH Device for dust removal
DE4124672A1 (en) * 1991-07-25 1993-01-28 Ahlbrandt Andreas DEVICE FOR REMOVING DUST PARTICLES ON MATERIALS
EP0565811A1 (en) * 1992-04-13 1993-10-20 Shinko Co., Ltd. Dust removing system for panellike bodies
CN1082849C (en) * 1994-09-06 2002-04-17 专利咨询及发展公司 Removing dust particles from a relatively moving material web
WO1996007490A1 (en) * 1994-09-06 1996-03-14 R. Schneider Consulting & Development Removing dust particles from a relatively moving material web
GB2315242A (en) * 1996-07-17 1998-01-28 Lambson Developments Limited A Printing Process
GB2315242B (en) * 1996-07-17 2000-05-31 Lambson Developments Limited A printing process
US6148831A (en) * 1996-10-25 2000-11-21 Valmet Corporation Method for cleaning a web
EP1108537A2 (en) * 1999-12-01 2001-06-20 Koenig & Bauer Aktiengesellschaft Method and device for treating the surface of printable supports in printing presses
EP1108537A3 (en) * 1999-12-01 2001-07-04 Koenig & Bauer Aktiengesellschaft Method and device for treating the surface of printable supports in printing presses
DE10004305A1 (en) * 2000-02-01 2001-08-02 Heidelberger Druckmasch Ag Process for vacuum removal of particles formed by continuous slitting of web material, such as on rotary printing machines
US6912942B2 (en) 2000-02-01 2005-07-05 Goss International Montataire S.A. Method and device for removing particles from webs of material
GB2372962B (en) * 2001-03-05 2004-10-27 Lambson Developments Ltd A printing process and apparatus
GB2372962A (en) * 2001-03-05 2002-09-11 Lambson Developments Ltd A printing process and apparatus
EP1344578A2 (en) 2002-03-13 2003-09-17 Heidelberger Druckmaschinen Aktiengesellschaft Cutting device with a dedusting device in the folding apparatus of a web processing printing machine
DE10211309A1 (en) * 2002-03-13 2003-09-25 Heidelberger Druckmasch Ag Cutting device with dedusting device in the folder of a web-processing printing machine
EP1724386A1 (en) * 2005-05-12 2006-11-22 Hanns Glass Gmbh & Co. Kg Suction device for removing unflocked fibres
DE102005043676A1 (en) * 2005-09-03 2007-03-22 Man Roland Druckmaschinen Ag Process to cut paper web into single sheets in a sheet-fed rotary press using dynamically-regulated laser beam
EP1852192A3 (en) * 2006-05-02 2011-10-19 Trinc.Org Dust remover
EP1852192A2 (en) * 2006-05-02 2007-11-07 Trinc.Org Dust remover
DE102007052573A1 (en) * 2007-11-03 2009-05-14 Manroland Ag Damping system i.e. centrifuge damping system, for use in offset rotary printing press, has wiping off mechanism that is discharge electrode arrangement cooperated with lateral surface of cylinder
DE102007052573B4 (en) * 2007-11-03 2015-04-09 Manroland Web Systems Gmbh dampening
DE102012109200A1 (en) * 2012-09-28 2014-04-03 Dr. Schneider Kunststoffwerke Gmbh Method for post-processing of plastic portion produced by in-mold decoration process, involves supplying ionized air flow to side of plastic portion and departing plastic portion counter with sharp tool for plastic portion contour finishing
DE102012109200B4 (en) * 2012-09-28 2017-11-30 Dr. Schneider Kunststoffwerke Gmbh Method for reworking a plastic part
DE102016119055A1 (en) * 2016-10-07 2018-04-12 Ideego Gmbh Cleaning device for a surface of a cylinder of a printing and / or copying machine
US10969728B2 (en) 2016-10-07 2021-04-06 Ideego Gmbh Cleaning device for the surface of a cylinder of a printer and/or copier

Also Published As

Publication number Publication date
JPS62290664A (en) 1987-12-17
EP0245526B1 (en) 1989-04-26
DE3662992D1 (en) 1989-06-01
US4835808A (en) 1989-06-06
ATE42504T1 (en) 1989-05-15

Similar Documents

Publication Publication Date Title
EP0245526B1 (en) Dust-removing probe for moving webs, especially for paper webs
DE3631270C2 (en)
DE4406847C2 (en) Device for floating guiding of sheets or webs
DE2618745C3 (en) Method and device for producing a fiber fleece from synthetic fibers
DE3522882C2 (en)
EP0748289B1 (en) Blower chamber for the floating conveyance of sheets or webs
DE1287532B (en) Device for determining the high voltage resistance of pieces of material
WO1993017866A1 (en) Dusting appliance
DE4120973A1 (en) DEVICE FOR DRAINING DUST
EP0395864B1 (en) Device for removal of dust in fold apparatus of printing machines
DE4016089C2 (en)
DE1786108C3 (en) Device for the continuous dedusting of material webs
EP0918579A1 (en) Device for removing liquid from the surface of a band
EP0538238A1 (en) Method and device for removing dust and dirt particles
EP0039669A2 (en) Electrostatic air filter
WO1997014546A1 (en) Device for treating flat substrates by a corona station
DE4124672A1 (en) DEVICE FOR REMOVING DUST PARTICLES ON MATERIALS
DE102009056625B9 (en) Extension device for an air guide box
DE2341541C2 (en) Electrostatic precipitator
DE10018010C2 (en) Dust removal device and its use
DE3607840C2 (en)
DE4315373C2 (en) Discharge device for aluminum can lids
WO1996026412A1 (en) Gliding plate
EP4000738B1 (en) Filter for cleaning a gas flow
DE2546025C3 (en) Device for electrostatic spraying of continuously transported webs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19870130

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17Q First examination report despatched

Effective date: 19880329

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 42504

Country of ref document: AT

Date of ref document: 19890515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3662992

Country of ref document: DE

Date of ref document: 19890601

ET Fr: translation filed
ITF It: translation for a ep patent filed

Owner name: FIAMMENGHI - DOMENIGHETTI

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19920319

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19920407

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19920423

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: LU

Payment date: 19920427

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19920428

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19920430

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19920506

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19920518

Year of fee payment: 7

EPTA Lu: last paid annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19930429

Ref country code: GB

Effective date: 19930429

Ref country code: AT

Effective date: 19930429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19930430

Ref country code: LI

Effective date: 19930430

Ref country code: CH

Effective date: 19930430

Ref country code: BE

Effective date: 19930430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930504

Year of fee payment: 8

BERE Be: lapsed

Owner name: ELTEX-ELEKTROSTATIK G.M.B.H.

Effective date: 19930430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19931101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19931229

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19930429

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950103

EUG Se: european patent has lapsed

Ref document number: 86105867.5

Effective date: 19931110

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050429