EP0133483A2 - Tambour de transfert ne nécessitant pas de maculage, pour presses rotatives à feuilles - Google Patents

Tambour de transfert ne nécessitant pas de maculage, pour presses rotatives à feuilles Download PDF

Info

Publication number
EP0133483A2
EP0133483A2 EP84108271A EP84108271A EP0133483A2 EP 0133483 A2 EP0133483 A2 EP 0133483A2 EP 84108271 A EP84108271 A EP 84108271A EP 84108271 A EP84108271 A EP 84108271A EP 0133483 A2 EP0133483 A2 EP 0133483A2
Authority
EP
European Patent Office
Prior art keywords
distribution elements
air distribution
air
lubrication
transfer drum
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
EP84108271A
Other languages
German (de)
English (en)
Other versions
EP0133483A3 (en
EP0133483B1 (fr
Inventor
Georg Jahn
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Priority to AT84108271T priority Critical patent/ATE23823T1/de
Publication of EP0133483A2 publication Critical patent/EP0133483A2/fr
Publication of EP0133483A3 publication Critical patent/EP0133483A3/de
Application granted granted Critical
Publication of EP0133483B1 publication Critical patent/EP0133483B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F22/00—Means preventing smudging of machine parts or printed articles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49861—Sizing mating parts during final positional association
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y10T29/49872—Confining elastic part in socket

Definitions

  • the invention relates to a lubrication-free transfer drum for sheet-fed rotary printing presses, in which blow holes are provided in the drum shell over the entire sheet-bearing drum circumference.
  • a device of this type is described in DE-PS 1 561 043, according to which, in the case of a delivery drum for sheet-fed printing machines, the sheets are pushed away by air streams emerging from openings arranged on the circumference of the drum, the drum as a whole with a cover made of known material to distribute the emerging air more uniformly , porous and air-permeable material.
  • the control of the air outlet from the individual openings requires an air control device inside the delivery drum which is very complex both in terms of construction and in terms of cost, the partial or temporal air control in particular causing great problems precisely at the points of the freshly printed sheet which are prone to smearing. Apart from this, there is always a great need for blowing air, which requires an unnecessarily large design of the units for blowing air generation. Even the smallest damage and contamination of the porous drum cover require its costly and time-consuming replacement.
  • the present invention has for its object to provide a maintenance-friendly transfer drum, in which reliably without a time-consuming settings and without considerable control engineering effort evenly over the entire drum circumference with a low blowing air requirement Lubricate freshly printed sheets by building an air cushion that is as free of turbulence and impulses as possible.
  • the object is achieved according to the invention in that in the blow holes of the drum shell the blown air to build up a uniform air cushion has flow-influencing air distribution elements which are made of air-permeable, elastic and slightly compressible material of low specific gravity.
  • the structural distribution of a large number of individual air distribution elements over the entire drum circumference enables particularly safe, quiet and smear-free sheet transport. Because the choice of material and the shape of the individual arch supports make it very easy to empirically determine the flow conditions required to build up a closed, turbulence-free and pulse-jet-free air cushion, thereby also changing conditions in the printing process as quickly as possible, e.g. Processing of a different paper thickness, which can be taken into account, optimization of a particularly stable sheet transport is possible. Due to the easy interchangeability of individual, e.g. dirty air distribution elements also ensure the greatest possible degree of ease of maintenance and thus operational safety of the transfer drum.
  • the air distribution elements are made of chemically consolidated fleece and / or crimped chemical fibers.
  • the air distribution elements can easily be punched out of fleece or fiber mats in large quantities, so that their manufacturing costs are insignificant in relation to the rest of the transfer drum.
  • the fine structuring of the hair network of the fleece or chemical fibers has the effect of a multitude of air channels and thus causes a reduction in pressure and very effective atomization of the blown air diffusely in all directions, which ensures a particularly smooth sheet transport with optimal support of the sheet despite minimal contact with the sheet.
  • a preferred further development of the invention consists in that the air distribution elements are made of a two-composite plastic, the lower area consisting of reversibly deformable foam and the upper area made of chemically bonded fleece or crimped chemical fibers.
  • This has the advantage that a large number of commercially available foam sponges and mats, such as those e.g. can be used for industrial or household cleaning purposes, can be used to manufacture the air distribution elements. While the great elasticity of the foam gives the air distribution elements a very secure frictional fit in the blowholes, the bow is evenly supported by a large number of individual fleece hairs or fiber ends with minimal surface contact in primarily punctiform contact zones.
  • the diameter of the air distribution elements is so much larger than that of the blow holes that the air distribution elements are held in their inserted state by their elastic tension.
  • the air distribution elements are provided at least at one end with a support collar with which they are supported at least on the inner edge of the drum in the inserted state.
  • the seat of the air distribution elements in the drum shell can be made even more secure by form-fitting support in order to counteract centrifugal forces acting on the air distribution elements on the one hand or pressure loads or tensile forces caused by the arc on the other hand.
  • the air adjustment elements protrude as far as possible to the drum surface.
  • the blow holes 4 are designed as through holes and are preferably distributed in a uniform structure in the drum jacket 17.
  • air distribution elements 7 are arranged, which are made of an air-permeable, elastic and easily compressible material with a low specific weight, preferably stamped.
  • a chemically consolidated textile or plastic fleece is used for the production or a network of crimped man-made fibers. It has proven to be advantageous to produce the air distribution elements 7, as shown in FIG. 8, from a two-composite material, the lower area facing the inside of the drum made of the largest possible porous and reversibly deformable foam and the upper area facing the drum surface made of one of the previously mentioned materials.
  • Such two-composite materials are known in the form of sponges and mats for industrial and household cleaning purposes.
  • a material for their production which also has hydrophilic surface properties.
  • the air distribution elements 7 have a firm fit in the drum jacket 17, their diameter 28 is significantly larger than the diameter 29 of the blow holes 4 (FIG. 3). Due to their high compressibility, the air distribution elements 7 can be easily inserted into the blowholes 4 by simply compressing them, in which they are then held primarily non-positively by their elastic tension.
  • blow holes 4 are made as rough rough bores in the drum jacket 17.
  • the network of nonwoven fabric or chemical fibers with a multitude of smallest fiber parts can thus cling to the coarse inner surface of the blow holes 4 and thereby give the air distribution elements 7 an even more secure hold in the drum jacket 17 by means of form-fitting support.
  • the savings in cost-intensive fine work processes also reduce the production costs reduced to a minimum.
  • an additional form-fitting support for their tight fit in the drum jacket 17 can be provided.
  • the air distribution elements are provided for this purpose at their end facing the inside of the drum with a support collar 30, which rests in the inserted state of the air distribution elements 7 on the inner edge of the drum and thus, for example, those acting on the air distribution elements 7 when the transfer drum rotates Can counteract centrifugal forces.
  • the same configuration can also be carried out in the opposite manner exclusively at the end of the air distribution elements 7 facing the drum surface in order to counteract excessive pressure load or tensile force of the sheet to be transported, for example when the sheet is being removed from the transfer drum 1. It is equally possible to provide the air distribution elements 7 - as shown in FIG. 6 - with support collars 30 at both ends.
  • the inner support collar 30 or similar support measures proves to be an indispensable prerequisite for a firm fit of the air distribution elements 7 in the drum jacket 17.
  • the air distribution elements 7 are flush with the cylinder surface (FIGS. 3 and 8). Nevertheless, the dimensional accuracy of the air distribution elements 7 is of secondary importance in the production, since their ends of the air distribution elements 7, which protrude beyond the drum surface, can be directly adapted to the curvature of the drum surface by "shaving".
  • the air distribution elements 7 can be designed as arch supports and expediently protrude by a defined amount over the drum surface, since in this case their surface has an anti-smudge effect (FIG. 5). If no direct contact between the sheet to be transported and the surface of the air distribution elements 7 is desired, their length can be smaller than the thickness of the drum shell 17, so that they still close within the blow holes 4 and not reach to the drum surface (Fig. 4).
  • a roller core 14 is mounted, which is provided at the end with a core bore 15.
  • an end disk 16 is fastened on the roller core 14, to which a drum jacket 17, preferably manufactured as a casting, is flanged in a known manner.
  • the end disk 14 is provided with an annular groove 18, which is connected to the core bore 15 of the roller core 14 via a blind bore 19.
  • the core hole 15 is coupled to an air blowing unit 22 by means of an air coupling 20 via line means 21.
  • the air coupling 20 is indicated schematically in FIG.
  • the blown air generated by the blown air unit 22 can thus flow via the line means 21, the air coupling 20, the core hole 15, the blind hole 19 and the annular groove 18 into the interior of the transfer drum 1 or its individual drum chambers 9.
  • a freshly printed sheet 27 is taken over by the sheet detection devices 2 and 3 in such a way - for example after a sheet turning in perfecting machines - that its still damp side is directed downwards against the drum surface.
  • the sheet 27 does not come to rest directly on the drum surface, but instead is supported and carried evenly over its entire area by the air cushion emerging from the air distributors 7, so that everyone is direct Contact between still damp ink and drum surface is excluded. If, contrary to expectations, there is a slight contact, the ink-repellent surface design or material properties of the arch support 7 also make it difficult to transfer color from the arch 27 to the arch support 7.

Landscapes

  • Treatment Of Fiber Materials (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Screen Printers (AREA)
  • General Details Of Gearings (AREA)
  • Soil Working Implements (AREA)
  • Rigid Containers With Two Or More Constituent Elements (AREA)
  • Advancing Webs (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
  • Discharging, Photosensitive Material Shape In Electrophotography (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Rotary Presses (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Handling Of Continuous Sheets Of Paper (AREA)
EP84108271A 1983-08-06 1984-07-13 Tambour de transfert ne nécessitant pas de maculage, pour presses rotatives à feuilles Expired EP0133483B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108271T ATE23823T1 (de) 1983-08-06 1984-07-13 Abschmierfreie umfuehrtrommel fuer bogenrotationsdruckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833328451 DE3328451A1 (de) 1983-08-06 1983-08-06 Abschmierfreie umfuehrtrommel fuer bogentotationsdruckmaschinen
DE3328451 1983-08-06

Publications (3)

Publication Number Publication Date
EP0133483A2 true EP0133483A2 (fr) 1985-02-27
EP0133483A3 EP0133483A3 (en) 1985-04-10
EP0133483B1 EP0133483B1 (fr) 1986-11-26

Family

ID=6205960

Family Applications (2)

Application Number Title Priority Date Filing Date
EP84108271A Expired EP0133483B1 (fr) 1983-08-06 1984-07-13 Tambour de transfert ne nécessitant pas de maculage, pour presses rotatives à feuilles
EP84108272A Ceased EP0133484A1 (fr) 1983-08-06 1984-07-13 Tambour de transfert sans maculage, pour presses rotatives à feuilles

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP84108272A Ceased EP0133484A1 (fr) 1983-08-06 1984-07-13 Tambour de transfert sans maculage, pour presses rotatives à feuilles

Country Status (7)

Country Link
US (1) US4552069A (fr)
EP (2) EP0133483B1 (fr)
AT (1) ATE23823T1 (fr)
DE (1) DE3328451A1 (fr)
DK (1) DK369584A (fr)
ES (1) ES533963A0 (fr)
NO (1) NO843134L (fr)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3602084A1 (de) * 1986-01-24 1987-07-30 Heidelberger Druckmasch Ag Bogenueberfuehrtrommel zwischen den druckwerken von rotationsdruckmaschinen
US4722276A (en) * 1986-08-01 1988-02-02 Tyler Jack D Air blast for preventing contact of wet ink sheets with printing press delivery mechanisms
US4874273A (en) * 1987-03-16 1989-10-17 Hitachi, Ltd. Apparatus for holding and/or conveying articles by fluid
US4967661A (en) * 1987-06-05 1990-11-06 Duarte Procuts, Inc. Sheet transfer mechanism for printing press
US4836104A (en) * 1987-06-05 1989-06-06 Duarte Products, Inc. Sheet transfer mechanism for a freshly printed sheet
DE3902923C2 (de) * 1988-03-16 1994-06-01 Heidelberger Druckmasch Ag Bogenführungstrommel für Bogenrotationsdruckmaschinen
NL8800781A (nl) * 1988-03-28 1989-10-16 Stork Screens Bv Werkwijze voor het aanbrengen van een huls op een walskern en walskern geschikt voor bedoelde werkwijze.
DE3827071A1 (de) * 1988-08-10 1990-02-15 Roland Man Druckmasch Luftkissentrommel fuer bogendruckmaschinen
DE3943119C1 (fr) * 1989-12-27 1991-06-20 Man Roland Druckmaschinen Ag, 6050 Offenbach, De
DE4244499C2 (de) * 1992-12-30 1995-04-06 Heidelberger Druckmasch Ag Druckmaschine mit bogenführender Fläche
DE4332708C2 (de) * 1993-09-25 2000-05-04 Heidelberger Druckmasch Ag Vorrichtung zum abschmierfreien Bogentransport in Bogendruckmaschinen
DE19545799C1 (de) * 1995-12-08 1997-01-16 Kba Planeta Ag Bogenführungssystem an Bogenführungszylindern in Druckmaschinen
US5842412A (en) * 1997-03-07 1998-12-01 Bba Nonwovens Simpsonville, Inc. Anti-marking covering for printing press transfer cylinder
DE19719624C1 (de) * 1997-05-09 1998-06-10 Heidelberger Druckmasch Ag Bogenrotationsdruckmaschine
US6684774B2 (en) 1997-05-09 2004-02-03 Heidelberger Druckmaschinen Ag Sheet-fed rotary printing press
DE19745763A1 (de) * 1997-10-16 1999-04-22 Heidelberger Druckmasch Ag Transporttrommel in Rotationsdruckmaschinen
US5913268A (en) * 1998-02-17 1999-06-22 Xerox Corporation Pneumatic rollers and paper handling arrangements
DE19848720A1 (de) * 1998-10-22 2000-05-18 Bundesdruckerei Gmbh Verfahren und Vorrichtung zur schmierstellenfreien Führung von Druckerzeugnissen in Druckmaschinen
US6811863B2 (en) * 2001-07-20 2004-11-02 Brite Ideas, Inc. Anti-marking coverings for printing presses
AU2007249795B2 (en) * 2006-05-12 2012-06-28 Printguard, Inc. Fixture for anti-marking coverings for printing presses
CN101269760B (zh) 2007-03-23 2011-11-16 海德堡印刷机械股份公司 收纸滚筒及双面印刷机
DE102010023485A1 (de) 2009-07-09 2011-01-13 Heidelberger Druckmaschinen Ag Bogenführungstrommel
CN108472824B (zh) * 2015-11-23 2020-02-18 柯尼格及包尔公开股份有限公司 用于操作基材的装置
JP7807455B2 (ja) * 2021-08-16 2026-01-27 富士フイルム株式会社 エアバー、乾燥装置、及びインクジェット印刷装置
JP2024088903A (ja) * 2022-12-21 2024-07-03 京セラドキュメントソリューションズ株式会社 搬送ローラー、ウェブ搬送装置、画像形成装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125265A (en) * 1964-03-17 Method and apparatus for scanning the surface of a moving web
US1170209A (en) * 1909-04-03 1916-02-01 Wood Newspaper Mach Corp Paper-lubricating device for printing-presses.
US2030304A (en) * 1931-07-20 1936-02-11 Theodore E Knowlton Printing
DE1213429B (de) * 1965-07-30 1966-03-31 Planeta Veb Druckmasch Werke Bogenfuehrungstrommel fuer Rotationsdruckmaschinen
DE1561043B1 (de) * 1967-03-16 1970-03-05 Roland Offsetmaschf Auslegertrommel
US3442506A (en) * 1967-06-30 1969-05-06 Miehle Goss Dexter Inc Antismudge sheet transfer device
DE2446188C3 (de) * 1974-09-27 1983-11-24 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Bogenführende Mantelfläche von Gegendruckzylindern oder Bogenüberführungszylindern in Rotationsoffsetdruckmaschinen
DE2550721C3 (de) * 1975-11-12 1986-07-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Übergabetrommel an einer Druckmaschine
US4091979A (en) * 1976-03-29 1978-05-30 Bell & Howell Company Methods and apparatus for precision guiding a web
DK40181A (da) 1980-03-31 1981-10-01 Heidelberger Druckmasch Ag Arkoverfoeringscylinder for rotationstrykmaskine
US4402267A (en) * 1981-03-11 1983-09-06 Printing Research Corporation Method and apparatus for handling printed sheet material

Also Published As

Publication number Publication date
ATE23823T1 (de) 1986-12-15
DE3328451A1 (de) 1985-02-21
DK369584A (da) 1985-02-07
EP0133484A1 (fr) 1985-02-27
DK369584D0 (da) 1984-07-27
ES8503566A1 (es) 1985-03-16
NO843134L (no) 1985-02-07
EP0133483A3 (en) 1985-04-10
US4552069A (en) 1985-11-12
EP0133483B1 (fr) 1986-11-26
ES533963A0 (es) 1985-03-16

Similar Documents

Publication Publication Date Title
EP0133483B1 (fr) Tambour de transfert ne nécessitant pas de maculage, pour presses rotatives à feuilles
DE68929409T2 (de) Verfahren zum Halten einer Materialbahn auf einem Trockenfilz
EP1554122A1 (fr) Elements de compression pour machine de production ou de traitement de bandes de matiere
DE4340915A1 (de) Auswechselbare Andrückhülse
DE60303990T2 (de) Wascheinrichtung und Waschverfahren für einen Druckzylinder in einer Bogendruckmaschine zum doppelseitigen Drucken
DE3111894C2 (de) Saugwalzenanordnung zum Fördern einer Materialbahn
EP0294546B1 (fr) Cylindre de pression
EP3110992B1 (fr) Dispositif de compression à tambour d'aspiration
DE3347886C2 (fr)
DE2111131B2 (de) Sprühfeuchtwerk für Paplerverarbeitungs- und Druckmaschinen
DE69816705T2 (de) Muffenförmiges Drucktuch sowie Druckmaschine unter Verwendung desselben
DE102007015401B4 (de) Feuchtwerk für ein Druckwerk einer Druckmaschine
EP0826819B1 (fr) Dispositif de déshydratation d'une suspension fibreuse
DE1461160A1 (de) Verfahren und Anordnung zur Entfernung von Fluessigkeit aus fluessigkeitshaltigem Material
EP3946948B1 (fr) Machine d'impression avec un rouleau de guidage permettant de guider une bande de matière à travers les composantes de la machine d'impression
DE102007006063B4 (de) Druckwerk einer Rotationsdruckmaschine
DE29720791U1 (de) Farbkasten für Rotationsdruckmaschinen
DE19805723A1 (de) Trockenpartie sowie Verfahren zum Betreiben einer solchen Trockenpartie
DE1038902B (de) Laengsschneidevorrichtung an Rollenschneidemaschinen
CH662134A5 (de) Spinnvorrichtung.
DE20303720U1 (de) Bahnführung in einer Rollenrotatinsdruckmaschine
AT341129B (de) Stranggiessanlage
DD202664A5 (de) Farbwerk
DE3133208C2 (de) Bogen-Richtwalze
DE10307089A1 (de) Bauteile einer Druckmaschine

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

17P Request for examination filed

Effective date: 19840713

AK Designated contracting states

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

AK Designated contracting states

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

17Q First examination report despatched

Effective date: 19860506

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 23823

Country of ref document: AT

Date of ref document: 19861215

Kind code of ref document: T

ET Fr: translation filed
ITF It: translation for a ep patent filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19870731

Year of fee payment: 4

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

Ref country code: AT

Effective date: 19890713

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

Ref country code: SE

Effective date: 19890714

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

Ref country code: LI

Effective date: 19890731

Ref country code: CH

Effective date: 19890731

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

Ref country code: NL

Effective date: 19900201

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

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

Effective date: 19900330

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: GB

Payment date: 19930625

Year of fee payment: 10

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

Ref country code: GB

Effective date: 19940713

EUG Se: european patent has lapsed

Ref document number: 84108271.2

Effective date: 19900418

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

Effective date: 19940713