EP0189092A2 - Procédé de fabrication de sacs en matière thermoplastique - Google Patents

Procédé de fabrication de sacs en matière thermoplastique Download PDF

Info

Publication number
EP0189092A2
EP0189092A2 EP86100412A EP86100412A EP0189092A2 EP 0189092 A2 EP0189092 A2 EP 0189092A2 EP 86100412 A EP86100412 A EP 86100412A EP 86100412 A EP86100412 A EP 86100412A EP 0189092 A2 EP0189092 A2 EP 0189092A2
Authority
EP
European Patent Office
Prior art keywords
pieces
tubular
web
fabric
webs
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
EP86100412A
Other languages
German (de)
English (en)
Other versions
EP0189092B1 (fr
EP0189092A3 (en
Inventor
Fritz Ing. Grad. Achelpohl
Hermann Oelrich
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.)
Windmoeller and Hoelscher KG
Original Assignee
Windmoeller and Hoelscher KG
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 Windmoeller and Hoelscher KG filed Critical Windmoeller and Hoelscher KG
Priority to AT86100412T priority Critical patent/ATE58334T1/de
Publication of EP0189092A2 publication Critical patent/EP0189092A2/fr
Publication of EP0189092A3 publication Critical patent/EP0189092A3/de
Application granted granted Critical
Publication of EP0189092B1 publication Critical patent/EP0189092B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B70/00—Making flexible containers, e.g. envelopes or bags
    • B31B70/60—Uniting opposed surfaces or edges; Taping
    • B31B70/62—Uniting opposed surfaces or edges; Taping by adhesives
    • B31B70/628—Applying glue on moving webs to form tubular webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2155/00—Flexible containers made from webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2160/00—Shape of flexible containers
    • B31B2160/10—Shape of flexible containers rectangular and flat, i.e. without structural provision for thickness of contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
    • B31B2170/00—Construction of flexible containers
    • B31B2170/20—Construction of flexible containers having multi-layered walls, e.g. laminated or lined
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S493/00—Manufacturing container or tube from paper; or other manufacturing from a sheet or web
    • Y10S493/916—Pliable container
    • Y10S493/933—Pliable container having multilayer wall

Definitions

  • the invention relates to a method for producing sacks from thermoplastic, in which a tubular web is formed from a plastic film web by wrapping in the side parts and gluing their overlapping edge regions by a longitudinal seam, and hose sections are separated from this tubular web, which are welded with bottom weld seams and after Filling with head welding seams.
  • the sack hose pieces can be provided with gussets before the transverse bottom weld seams are attached. If the sacks are made of plastic films, there is a risk of their damage during loading, transporting and storage, because the plastic films forming the sack walls are very susceptible to tearing and the sacks are usually subjected to rough treatment. Damage caused when the sacks are turned over can result in filling losses of up to 50%.
  • Sacks are also known which consist of tubular pieces made of a fabric made of stretched plastic tapes. Such bags have a high strength, so that they are not damaged even with rough treatment and in the case of impacts with pointed objects. Sacks made from plastic tapes have the disadvantage that they are difficult to weld, so that the manufacture of the top and bottom seams presents considerable difficulties.
  • the object of the invention is therefore to propose a method of the type mentioned at the outset by which high-strength sacks can be produced which can be provided in a simple manner with bottom and top weld seams.
  • this object is achieved in that web pieces made of a fabric made of stretched plastic tapes, which are shorter than the distance between the later bottom and head weld seams on the flat-lying sacks, are introduced with a mutual distance between two converging plastic film webs, the area of the later bottom - and head welding seams bridged that the webs and the fabric web pieces are laterally offset and the exposed edge strips of the webs and fabric web pieces are provided with hot-melt adhesive layers, so that during subsequent hose formation they stick with their opposite edge strips that overlap the hot-melt adhesive layers, and that from the The tube pieces are cut off approximately in the middle between the fabric sheet pieces and these are provided with the transverse bottom weld seams which only capture the plastic tube sheet pieces.
  • the sacks produced by the method according to the invention thus have three-layer walls which are formed by the plastic webs lying on the inside and outside, which enclose the reinforcing fabric web pieces between them.
  • the composite forming the sack walls film has a high level of tightness and, moreover, also a high level of strength because the fabric web pieces are largely insensitive to injuries and are not susceptible to tears. Since the fabric web pieces lie outside the bottom and head weld seams, these can be easily attached D.
  • the main loads on the bags arise in the area of the side walls, which are reinforced by the fabric sheet pieces, so that there is no significant weakening in that the fabric sheet pieces each end in front of the bottom and head cross-weld nibs that only pass through the sheet pieces.
  • the bags produced by the process according to the invention withstand high loads after they have been filled and after the head welds have been made. They will not be damaged even if they are handled several times during transport and storage. These sacks are not only insensitive to tears, but also to stitches, because the ribbon fabric inserts endeavor to contract again after the penetration of pointed objects.
  • one of these is provided with a plurality of strips of hot-melt adhesive lying next to one another in parallel at a distance.
  • the tape fabric inserts are connected to the relevant film web by means of these hot-melt adhesive strips.
  • the hot-melt adhesive layers glue the foils surrounding the fabric sheet pieces together, so that these, too, are fixed sufficiently firmly to one another.
  • the length of the fabric web pieces corresponds to the height of the side walls of the filled bags.
  • This configuration is particularly useful for large bags with a capacity of 1 to 2 tons, since these are the fabric web pieces as it were, form the stiffening of the side walls.
  • the bottom and top surfaces provided with the transverse weld seams form stand surfaces with less load in such bags.
  • the double-layer tubular web with the fabric web pieces produced by the method according to the invention can be wound up into transport rolls, from which the individual bag hose pieces are separated prior to filling.
  • flexible material strips for example made of plastic film, can be placed on the edge areas of the tubular web before winding up, which compensate for the height of the seams formed by the overlaps.
  • the webs 3 and 4 are continuously drawn off from the film rolls 1 and 2. Between these two webs 3 and 4, tissue pieces 5 are introduced at a distance from one another, which are cut off in cycles from a web 7 drawn off from a roll 6. 2 shows, the individual layers 3, 4 and 5 are offset from one another. Continuous strips 9 of a hot-melt adhesive are applied via a glue application unit 8, through which, on the one hand, the fabric pieces 5 do not lie against one another, are likewise connected to one another. The tube which can be seen in cross section in FIG. 3 is then formed from the three-layer flat web shown in FIG. 2 via a folding device 10. The glue strips 11 required for connection (FIG. 3) are applied by the hot melt application unit 12.
  • the hose 13 is then advanced further by the preferred rollers 14 and, if necessary, divided into individual hose sections by a cutting device 15 or wound up into a roll 16 after the cutting device 15 has been shut down.
  • a switch 17 is provided behind the cutting device 15 and is constructed in a known manner.
  • Pieces of hose according to FIG. 4 are then separated from a hose provided with side gussets, the longitudinal seam not being shown in FIG. 4.
  • FIGS. 5 and 6 show that the middle layer 5 is shorter than the other two layers 3 and 4. If only one end of a hose section is shown here, the layer 5 is also set back at the other end compared to the other layers 3 and 4 .
  • the dimension for this offset is designated by X.
  • a sack formed from such a piece of hose is shown in FIGS. 5 and 6. It can be seen in particular from FIG. 6 that the inner layer 5 made of fabric material is not covered by the welds 18 and 19.
  • the inner layer 5 is, as already indicated in FIG. 4, both ends by that dimension X shorter than the outer fabric layers 4.
  • a sack designed in this way can be welded very well on the one hand and withstands mechanical stresses exceptionally well on the other.
  • Such bags have a capacity of about 25 to 50 kilos. Artificial fertilizers are packaged in them, for example.
  • FIG. 7 shows a large sack with a capacity of 1 to 2 tons.
  • the fabric material 5 only extends over the filling height 20, whereas the material required for the bottom formation as well as the material required for closing the large sack is only formed from two webs 3 and 4 lying one on top of the other.
  • the distance Y denoted in FIG. 2 between two pieces of fabric 5 must therefore be so large during the production of the sack material that the two film webs 3 and 4 protrude a piece of fabric 5 on both ends to such an extent that there is sufficient material for the bottom formation (in FIG. 7) the bottom is already formed) and there is enough material left to add the filled large bag.

Landscapes

  • Making Paper Articles (AREA)
  • Bag Frames (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
EP86100412A 1985-01-23 1986-01-14 Procédé de fabrication de sacs en matière thermoplastique Expired - Lifetime EP0189092B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86100412T ATE58334T1 (de) 1985-01-23 1986-01-14 Verfahren zum herstellen von saecken aus thermoplastischem kunststoff.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3502151 1985-01-23
DE19853502151 DE3502151A1 (de) 1985-01-23 1985-01-23 Verfahren zum herstellen von saecken aus thermoplatischem kunststoff

Publications (3)

Publication Number Publication Date
EP0189092A2 true EP0189092A2 (fr) 1986-07-30
EP0189092A3 EP0189092A3 (en) 1989-01-04
EP0189092B1 EP0189092B1 (fr) 1990-11-14

Family

ID=6260547

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86100412A Expired - Lifetime EP0189092B1 (fr) 1985-01-23 1986-01-14 Procédé de fabrication de sacs en matière thermoplastique

Country Status (5)

Country Link
US (1) US4726169A (fr)
EP (1) EP0189092B1 (fr)
AT (1) ATE58334T1 (fr)
CA (1) CA1264974A (fr)
DE (1) DE3502151A1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4838982A (en) * 1987-06-26 1989-06-13 H.G. Weber & Co., Inc. Patch applicator vacuum cylinder for web material
US5001888A (en) * 1990-01-16 1991-03-26 Seagate Technology, Inc. Method of packaging and dispensing a mechanical part
DE19827987B4 (de) * 1998-06-24 2004-12-23 Lemo Maschinenbau Gmbh Trichterbeutel, insbesondere Topfpflanzentrichter aus thermoplastischer Kunststoffolie sowie Verfahren und Vorrichtung zum Herstellen eines solchen Trichterbeutels
US5993368A (en) * 1998-09-09 1999-11-30 Ohio Valley Bag And Burlap Company Apparatus for manufacturing shipping pouches
EP1122192A1 (fr) * 2000-02-02 2001-08-08 Tils, Peter Film tubulaire
ITBO20000483A1 (it) * 2000-08-03 2002-02-03 Guglielmo Martelli Procedimento per la realizzazione di un incarto per il confezionamento di prodotti alimentari e dispositivo per l' attuazione di tale proced
KR100448313B1 (ko) * 2001-08-23 2004-09-10 이미숙 투브라 포대 코팅방법
US7115086B1 (en) * 2004-08-20 2006-10-03 Automated Solutions, Llc Queue-based bag forming system and method
KR100702624B1 (ko) 2005-07-18 2007-04-03 (주)금풍 지대용지 및 지대
DE202006020404U1 (de) * 2006-01-26 2008-07-31 Mondi Ag Mehrlagiger Sack aus Papier
US9845184B2 (en) 2012-02-13 2017-12-19 Polytex Fibers Corporation Easy open plastic bags
US11459157B2 (en) 2012-02-13 2022-10-04 Polytex Fibers Llc Woven plastic bags with features that reduce leakage, breakage and infestations
US9969529B2 (en) 2012-02-13 2018-05-15 Polytex Fibers Corporation Easy open plastic bags
US9669981B2 (en) 2012-02-13 2017-06-06 Polytex Fibers Corporation Easy open plastic bags
US11305927B2 (en) 2014-04-04 2022-04-19 Polytex Fibers Llc Easy open plastic bags
CA2969204C (fr) * 2014-12-02 2022-06-28 Nisshin Seifun Group Inc. Appareil d'emballage de coussin horizontal et methode d'emballage de coussin horizontal
CN107685479B (zh) * 2017-09-14 2019-06-21 广德美好包装科技有限公司 一种食品包装袋的印刷设备
US11345109B2 (en) * 2020-01-17 2022-05-31 Simple Container Solutions, Inc. Method for producing a recyclable bag
CN116147544B (zh) * 2023-04-03 2023-09-29 广东汇发塑业科技有限公司 一种塑料薄膜表面平整度检测装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746623A (en) * 1927-12-12 1930-02-11 Arkell & Smiths Method of and machine for use in the manufacture of bags
US2257823A (en) * 1940-01-15 1941-10-07 Stokes & Smith Co Method and apparatus for producing containers
DE1964142A1 (de) * 1968-12-20 1970-07-23 Showa Denko Kk Hochleistungssaecke fuer die Lagerung und den Transport von Getreide,Duengemittel oder anderen koernigen oder pulverisierten Produkten
US4014252A (en) * 1975-09-02 1977-03-29 Show Seitai Kogyo Kaisha Ltd. Method of manufacturing bags
US4064302A (en) * 1973-02-28 1977-12-20 Kozlowski Edward C Composite flexible, semi-rigid materials and process for making same
DE2707584A1 (de) * 1977-02-22 1978-08-24 Windmoeller & Hoelscher Gelegeverstaerkte folienbahn
FR2394390A1 (fr) * 1977-06-16 1979-01-12 Peckre Freres Et Turpin Ets Procede de fabrication d'un emballage multi-couche plat et emballage ainsi fabrique
US4340379A (en) * 1978-09-11 1982-07-20 Better Agricultural Goals Corporation Reinforced container for bulk material

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2374128A (en) * 1943-09-27 1945-04-17 Bemis Bro Bag Co Method of making a bag material and the product thereof
DE1018714B (de) * 1953-11-27 1957-10-31 Behn Verpackung Erwin Vorrichtung zum Einlegen von Papierabschnitten u. dgl. zwischen fuer die Herstellung von Papiersaecken dienende, nach dem Zusammenfuehren zu einer Lagenschicht abzulaengende Papierbahnen, und auf dieser Vorrichtung angefertigter mehrlagiger Papiersack
US3391615A (en) * 1965-05-11 1968-07-09 Albemarle Paper Co Process and apparatus for the manufacture of a multi-ply bag
DE7529294U (de) * 1975-09-16 1976-01-29 Windmoeller & Hoelscher Mehrlagiger Sackschlauch
US4337058A (en) * 1979-05-01 1982-06-29 Automated Packaging Systems, Inc. Method of making a container strip having inserts

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1746623A (en) * 1927-12-12 1930-02-11 Arkell & Smiths Method of and machine for use in the manufacture of bags
US2257823A (en) * 1940-01-15 1941-10-07 Stokes & Smith Co Method and apparatus for producing containers
DE1964142A1 (de) * 1968-12-20 1970-07-23 Showa Denko Kk Hochleistungssaecke fuer die Lagerung und den Transport von Getreide,Duengemittel oder anderen koernigen oder pulverisierten Produkten
US4064302A (en) * 1973-02-28 1977-12-20 Kozlowski Edward C Composite flexible, semi-rigid materials and process for making same
US4014252A (en) * 1975-09-02 1977-03-29 Show Seitai Kogyo Kaisha Ltd. Method of manufacturing bags
DE2707584A1 (de) * 1977-02-22 1978-08-24 Windmoeller & Hoelscher Gelegeverstaerkte folienbahn
FR2394390A1 (fr) * 1977-06-16 1979-01-12 Peckre Freres Et Turpin Ets Procede de fabrication d'un emballage multi-couche plat et emballage ainsi fabrique
US4340379A (en) * 1978-09-11 1982-07-20 Better Agricultural Goals Corporation Reinforced container for bulk material

Also Published As

Publication number Publication date
CA1264974C (fr) 1990-01-30
ATE58334T1 (de) 1990-11-15
EP0189092B1 (fr) 1990-11-14
US4726169A (en) 1988-02-23
DE3502151A1 (de) 1986-07-24
CA1264974A (fr) 1990-01-30
EP0189092A3 (en) 1989-01-04

Similar Documents

Publication Publication Date Title
EP0189092B1 (fr) Procédé de fabrication de sacs en matière thermoplastique
DE69209421T2 (de) Flexible Behälter
DE3810555A1 (de) Schlauchfoermiger behaelter aus kunststoffmaterial und verfahren zu seiner herstellung
DE2707584C2 (fr)
DE2721771C2 (de) Verfahren zur Herstellung einseitig offener Säcke mit einem tragenden Außensack und einem dichtenden Innensack
EP1795335A2 (fr) Procédé destiné à la fabrication de matériaux d'emballage constitués d'un matériau flexible
DE10001824A1 (de) Wiederverschließbarer Sack oder Beutel
DE3020043A1 (de) Kreuzbodensack
CH375979A (de) Klotzbodenbeutel mit Verstärkungsleisten und nahtlosem Boden
DE1761882A1 (de) Sack oder Beutel mit Traggriff und Herstellungsverfahren
DE3629852A1 (de) Tragetasche aus thermoplastischer kunststoffolie
WO2012048837A1 (fr) Machine d'emballage et procédé de remplissage de sacs
EP0121041B1 (fr) Sac à plis latéraux avec sac extérieur de consolidation et sac intérieur ainsi que procédé pour sa fabrication
DE2552438B1 (de) Ventilsack
DE3622968C2 (fr)
DE2734352C2 (de) Beutelpackung aus mehrlagigem Material
DE4133959A1 (de) Leicht zu oeffnender verpackungsbeutel aus folien- oder papiermaterial und verfahren zu seiner herstellung
DE1454987B2 (de) Verfahren zur herstellung mehrlagiger kunststoffsaecke, -beutel oder dgl.
DE2709823A1 (de) Seitenfaltensack
DE2801963A1 (de) Ein- oder mehrlagiger kreuzbodensack aus faltbarem werkstoff sowie verfahren zu seiner herstellung
DE2629867A1 (de) Ventilsack
DE3420622C2 (fr)
DE1486726C (de) Mit Einfaltungen versehener mehr wandiger Beutel oder Sack
DE6610245U (de) Sack oder beutel mit traggriff.
DE19605259A1 (de) Tragtasche und Verfahren zu ihrer Herstellung

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

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE FR GB IT LU NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE FR GB IT LU NL

17P Request for examination filed

Effective date: 19890217

17Q First examination report despatched

Effective date: 19900207

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE FR GB IT LU NL

REF Corresponds to:

Ref document number: 58334

Country of ref document: AT

Date of ref document: 19901115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19901213

Year of fee payment: 6

ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19901231

Year of fee payment: 6

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

Ref country code: FR

Payment date: 19910110

Year of fee payment: 6

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

Ref country code: BE

Payment date: 19910111

Year of fee payment: 6

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

Ref country code: LU

Payment date: 19910121

Year of fee payment: 6

ITF It: translation for a ep patent 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: NL

Payment date: 19910131

Year of fee payment: 6

EPTA Lu: last paid annual fee
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: LU

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

Effective date: 19920114

Ref country code: GB

Effective date: 19920114

Ref country code: AT

Effective date: 19920114

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

Ref country code: BE

Effective date: 19920131

BERE Be: lapsed

Owner name: WINDMOLLER & HOLSCHER

Effective date: 19920131

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

Ref country code: NL

Effective date: 19920801

GBPC Gb: european patent ceased through non-payment of renewal fee
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: 19920930

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: 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: 20050114