EP0234009B1 - Procédé pour la fabrication d'un outil de coupe et de rentrage - Google Patents

Procédé pour la fabrication d'un outil de coupe et de rentrage Download PDF

Info

Publication number
EP0234009B1
EP0234009B1 EP86116555A EP86116555A EP0234009B1 EP 0234009 B1 EP0234009 B1 EP 0234009B1 EP 86116555 A EP86116555 A EP 86116555A EP 86116555 A EP86116555 A EP 86116555A EP 0234009 B1 EP0234009 B1 EP 0234009B1
Authority
EP
European Patent Office
Prior art keywords
bevel
blade
cutting
chamfer
process according
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.)
Expired
Application number
EP86116555A
Other languages
German (de)
English (en)
Other versions
EP0234009A1 (fr
EP0234009B2 (fr
Inventor
Horst-Peter Kämmerling-Essmann
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.)
ESSMANN AND SCHAEFER GmbH and Co KG
Original Assignee
ESSMANN AND SCHAEFER GmbH and Co 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6295036&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0234009(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by ESSMANN AND SCHAEFER GmbH and Co KG filed Critical ESSMANN AND SCHAEFER GmbH and Co KG
Priority to AT86116555T priority Critical patent/ATE41891T1/de
Publication of EP0234009A1 publication Critical patent/EP0234009A1/fr
Publication of EP0234009B1 publication Critical patent/EP0234009B1/fr
Application granted granted Critical
Publication of EP0234009B2 publication Critical patent/EP0234009B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26B—HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B9/00—Blades for hand knives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/002—Materials or surface treatments therefor, e.g. composite materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/0006—Cutting members therefor
    • B26D2001/0053—Cutting members therefor having a special cutting edge section or blade section
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4436—Materials or surface treatments therefore
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/44—Cutters therefor; Dies therefor
    • B26F2001/4472—Cutting edge section features
    • 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
    • Y10S76/00—Metal tools and implements, making
    • Y10S76/02—Case hardening
    • 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
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9295—Work supported tool [e.g., clicker die]
    • 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
    • Y10T83/00—Cutting
    • Y10T83/929—Tool or tool with support
    • Y10T83/9454—Reciprocable type

Definitions

  • the present invention relates to a method for producing a cutting and scoring tool from a steel blade, a chamfer being formed on a longitudinal side of the blade by scraping.
  • Such cutting and scoring tools are used in the paper processing and cardboard industry.
  • Cutting and scoring tools which have either a ground bevel or a scraped bevel.
  • the ground bevel has minimal hollow grinding, which results in excellent sharpness, so that a low punching pressure is required.
  • the dimensional accuracy of such a chamfer is not satisfactory for all purposes. Due to their production in the drawing process, scraped bevels have very good dimensional stability, so that they can be used with high demands on dimensional accuracy.
  • the chamfer is slightly convex, the sharpness of this chamfer is low and it does not have a cutting, but rather a pressing effect on the material, so that higher punching pressures are required.
  • FR-A 1 483 301 describes a punch knife whose cutting edge is formed solely by grinding.
  • DE-A 2 304 237 deals with a cutting knife which also has ground cutting edges.
  • DE-A 3 101 988 also relates to a knife, the blade of which is provided with a ground cutting edge.
  • the present invention is based on the object, starting from the prior art described at the outset, of specifying a method for producing a cutting and scoring tool with which the advantages of the scraped and ground bevel can be connected to one another.
  • the blade is hardened in one area of the chamfer and in that a fine grinding is carried out in the same area starting from the chamfer tip.
  • the invention is based on the knowledge that the fine grinding not only improves the function of the cutting tool due to the change in shape associated with it, but that the precision grinding does not impair the dimensional accuracy of the scraped chamfer on the one hand and the top layer of the chamfer on the other a thickness is removed which corresponds to the thickness of the soft outer skin, in which the desired hardness is not present.
  • the fine grinding according to the invention not only maintains the dimensional accuracy of the scraped chamfer, but also realizes the cutting effect of a ground tool, although there is also an increased service life.
  • the single figure shows a cross section through a cutting and scoring tool produced by the method according to the invention, which consists of a blade 1 and has a chamfer 2 on a longitudinal edge, a double-sided chamfer 2 being present in the example shown.
  • the chamfer 2 is produced by pulling a flat material made of spring steel with a thickness of 0.4 to 2 mm in a hard metal drawing die, so that the one or two-sided chamfer 2 is produced as a result. This is called a so-called scraped bevel.
  • This chamfer 2 is now produced with a certain oversize, namely with an oversize of 2/100 to 4/100 mm.
  • This oversized, scraped chamfer 2 is then hardened according to the invention in a region 4, preferably induction hardened, with a penetration depth of 3/10 to 5/10 mm measured from the tip 3 of the chamfer 2.
  • the hardening takes place to a hardness of 66 HRc.
  • tempering takes place in the same area 4, to a final tempering hardness of 57 to 59 HRc. It is also provided that the bevel 2 is given a finishing touch 5.
  • This fine sanding 5 is carried out at a bevel angle a of approximately 45 ° -60 ° in such a way that the excess existing after scraping is removed. As a result, the softer outer skin of the hardened and tempered chamfer 2 is removed at the same time.
  • This fine sanding which is advantageously carried out with an added grinding wheel, does not impair the dimensional accuracy of the scraped bevel, and the fine sanding also prevents scoring in the bevel surface.
  • the cutting and scoring tool produced by the method according to the invention can be designed with a one-sided chamfer, with a double-sided chamfer as shown, with one-sided double grinding or with four-grinding.
  • the tool according to the invention has excellent dimensional stability, which results in very short dressing times in the tool.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Milling Processes (AREA)
  • Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Claims (7)

1. Procédé de fabrication d'un outil de coupe et de rainage à partir d'une lame (1) en acier, un chanfrein (2) étant formé par râclage sur un côté longitudinal de la lame, caractérisé par le fait que la lame (1) est trempée dans une région (4) du chanfrein (2) et que, dans la même région (4), on effectue une rectification (5) en partant de la pointe (3) du chanfrein.
2. Procédé selon la revendication 1, caractérisé en ce que la lame (1) est trempée de manière telle que la région (4) mesure environ 3/10 à 5/10 mm en partant de la pointe (3) du chanfrein.
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que la lame (1) est trempée dans la région (4) jusqu'à atteindre une dureté d'environ 66 HRc.
4. Procédé selon l'une ou plusieurs des revendications 1 à 3, caractérisé en ce que le chanfrein (2) subit un revenu dans la région (4) pour atteindre en particulier une dureté finale d'environ 57 à 59 HRc.
5. Procédé selon l'une ou plusieurs des revendications 1 à 4, caractérisé en ce que la rectification (5) s'effectue avec une précision de 2/100 à 4/100 mm.
6. Procédé selon l'une ou plusieurs des revendications 1 à 5, caractérisé en ce que l'angle (a) du chanfrein obtenu par la rectification (5) est d'environ 45° à 60°.
7. Procédé selon l'une ou plusieurs des revendications 1 à 6, caractérisé en ce qu'on utilise une lame (1) en feuillard d'acier à ressorts d'une épaisseur de 0,4 à 2 mm.
EP86116555A 1986-02-27 1986-11-28 Procédé pour la fabrication d'un outil de coupe et de rentrage Expired - Lifetime EP0234009B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116555T ATE41891T1 (de) 1986-02-27 1986-11-28 Verfahren zum herstellen eines schneid- und ritzwerkzeuges.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3606315 1986-02-27
DE3606315A DE3606315C1 (de) 1986-02-27 1986-02-27 Schneid- und Ritzwerkzeug

Publications (3)

Publication Number Publication Date
EP0234009A1 EP0234009A1 (fr) 1987-09-02
EP0234009B1 true EP0234009B1 (fr) 1989-04-05
EP0234009B2 EP0234009B2 (fr) 1994-08-24

Family

ID=6295036

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116555A Expired - Lifetime EP0234009B2 (fr) 1986-02-27 1986-11-28 Procédé pour la fabrication d'un outil de coupe et de rentrage

Country Status (6)

Country Link
US (1) US4829854A (fr)
EP (1) EP0234009B2 (fr)
AT (1) ATE41891T1 (fr)
DE (1) DE3606315C1 (fr)
ES (1) ES2007574T5 (fr)
GR (1) GR3000039T3 (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3919536A1 (de) * 1989-06-15 1990-12-20 Rolf Karl Stursberg Fa Verfahren und vorrichtung zur herstellung von schneid- und ritzwerkzeugen
US5105526A (en) * 1989-08-09 1992-04-21 Industrial Resources Of Michigan Shearing blade for pallet disassembler
DE4328961C2 (de) * 1993-08-27 1995-11-30 Fraunhofer Ges Forschung Verfahren zur Herstellung von Papiermessern
DE4343222C2 (de) * 1993-12-17 1996-01-18 Johannes Prof Dr Rer N Gartzen Messerscheibe
US5537905A (en) * 1994-09-08 1996-07-23 Zimmer Industries, Inc. Nicked cutting rule
US5676032A (en) * 1995-10-20 1997-10-14 Southwest Die Corporation Steel rule die with closely nested cavities
DE29609877U1 (de) * 1996-06-04 1997-10-02 Hofer, Helmut, Prof. Dr.-Ing., 81929 München Druckschneidemesser
US5983766A (en) * 1997-10-14 1999-11-16 Johnson; Michael J. Steel rule cutting die with removable cutting units and method for using same
DE29809958U1 (de) 1998-06-04 1998-08-27 Essmann + Schaefer GmbH + Co. KG, 42369 Wuppertal Schneid- und Ritzwerkzeug
US6408729B1 (en) 1999-08-18 2002-06-25 Michael J. Johnson Steel rule for scrap material ejection die
US6658978B1 (en) * 1999-10-15 2003-12-09 Ontario Die International Inc. Steel rule die with removable cutting units
CA2458309A1 (fr) * 2003-12-01 2005-06-01 Ontario Die International Inc. Poincon pour emporte-piece a renfort
US20050155478A1 (en) * 2004-01-21 2005-07-21 Ab Sandvik Materials Technology, Nicked cutting rule
EP1982803A1 (fr) * 2007-04-16 2008-10-22 Koninklijke Philips Electronics N.V. Élément de découpe, rasoir électrique doté d'un élément de découpe et procédé de fabrication dudit élément
EP2159013A1 (fr) 2008-08-25 2010-03-03 Essmann + Schaefer GmbH + Co. KG Outil pour couper et entailler et son procédé de fabrication
DE102009013117A1 (de) * 2009-03-13 2010-09-23 Karl Marbach Gmbh & Co. Kg Verfahren zur Herstellung von Biegelinien in einem Materialbogen sowie Vorrichtung zur Durchführung des Verfahrens
SE542356C2 (en) * 2017-04-21 2020-04-14 Husqvarna Ab Cutting blade and method for producing a cutting blade
AT520930B1 (de) * 2018-06-29 2019-09-15 Voestalpine Prec Strip Gmbh Verfahren zur Herstellung eines Bandstahlmessers und Bandstahlmesser für Werkzeuge

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1095116A (en) * 1909-05-17 1914-04-28 United Shoe Machinery Ab Method of making dies.
US1837523A (en) * 1928-01-07 1931-12-22 United Shoe Machinery Corp Art of making clicking dies
US2049157A (en) * 1934-08-20 1936-07-28 Progressive Service Company Die and method of making the same
US2211213A (en) * 1938-11-19 1940-08-13 Independent Die And Supply Com Die stock and die made therefrom
US2191709A (en) * 1939-04-22 1940-02-27 Francis J Dedrick Die
US2276376A (en) * 1941-01-27 1942-03-17 Progressive Service Company Clicker die stock
US2491665A (en) * 1946-09-11 1949-12-20 Achorn Steel Company Die stock
US2713902A (en) * 1950-04-18 1955-07-26 Biss Robert Steel cutting rule
US3411208A (en) * 1965-06-14 1968-11-19 Sandvikens Jernverks Ab Cutting strips, cutting die knives, cutting rules and the like
FR1483301A (fr) * 1966-06-14 1967-06-02 Sandvikens Jernverks Ab Couteau pour le découpage et procédé de fabrication
US3587382A (en) * 1968-10-08 1971-06-28 Harry S Boyd Die for cutting paper
US3974564A (en) * 1972-11-23 1976-08-17 Tullen Industries Limited Surface hardened steel cutting blade
DE2743258A1 (de) * 1977-09-26 1979-03-29 Aiguisage Service S A Klinge fuer papierschneidemaschinen und verfahren zu deren schleifen
DE3101988A1 (de) * 1981-01-22 1982-09-02 Württembergische Metallwarenfabrik AG, 7340 Geislingen Messer

Also Published As

Publication number Publication date
DE3606315C1 (de) 1987-08-06
ES2007574B3 (es) 1989-06-16
EP0234009A1 (fr) 1987-09-02
ATE41891T1 (de) 1989-04-15
US4829854A (en) 1989-05-16
ES2007574T5 (es) 1995-08-16
GR3000039T3 (en) 1990-01-31
EP0234009B2 (fr) 1994-08-24

Similar Documents

Publication Publication Date Title
EP0234009B1 (fr) Procédé pour la fabrication d'un outil de coupe et de rentrage
DE3020929A1 (de) Mit hartstoff beschichtete messerplatte und verfahren zu ihrer herstellung
DE69012589T2 (de) Verfahren zur herstellung von kontinuierlich stirngefrästen kegelzahnrädern mit abgeschrägten zahnstirnkanten.
DE4340608A1 (de) Schneidmesser
DE1952929C3 (de) Verfahren zur Herstellung von Münzen
DE3623176C2 (fr)
DE3826029A1 (de) Kegelradpaar
DE2214434C3 (de) Bandstahlmesser für Holzzerspanungsmaschinen und Verfahren zur Herstellung desselben
DE3620807C2 (fr)
DE3508065A1 (de) Verfahren und system zur verbesserung der oberflaechengenauigkeit und -guete gekruemmter zaehne
EP2159013A1 (fr) Outil pour couper et entailler et son procédé de fabrication
DE8605214U1 (de) Schneid- und Ritzlinie
EP0271481B1 (fr) Procédé et ébauche pour fabriquer des outils
EP1112798B1 (fr) Outil pour l'usinage de précision pour le finissage de pièces sous forme de roue dentée
DE2708739A1 (de) Ein- oder beiseitig wirkendes bandstahlmesser, vorzugsweise zum abschaelen von spaenen oder holzwolle und/oder zur faserritzung und verfahren zur herstellung desselben
DE3300106C2 (fr)
DE901491C (de) Verfahren und Vorrichtung zur Herstellung von Effilierscheren
DE3111771C2 (fr)
EP1436121B1 (fr) Procédé pour la production d'un élément abrasif, en particulier pour couronnes de mèches creuses
DE2823833A1 (de) Zahnradgrobfraeser
DE3301199A1 (de) Schneidwerkzeuge mit zementiertem carbid und verfahren zur herstellung und verwendung
DE102019211724A1 (de) Schaftfräser
DE102015122189A1 (de) Finishwerkzeug mit lokal variierender Schnittigkeit
DE391717C (de) Verfahren zum Fertigstellen von Messerklingen aus keilfoermig gewalztem Stahl
DE1813617A1 (de) Siebscherfolie aus Stahl fuer Trockenrasierapparate und Verfahren zu deren 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: A1

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

17P Request for examination filed

Effective date: 19870805

RBV Designated contracting states (corrected)

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

17Q First examination report despatched

Effective date: 19880325

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 ES FR GB GR IT LI LU NL SE

REF Corresponds to:

Ref document number: 41891

Country of ref document: AT

Date of ref document: 19890415

Kind code of ref document: T

ITF It: translation for a ep patent filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3000039

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: BOEHLER GES.M.B.H.

Effective date: 19900105

Opponent name: MARTIN MILLER AG,

Effective date: 19900105

NLR1 Nl: opposition has been filed with the epo

Opponent name: BOEHLER GES.M.B.H.

Opponent name: MARTIN MILLER AG

ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
PUAA Information related to the publication of a b2 document modified

Free format text: ORIGINAL CODE: 0009299PMAP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

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

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19940824

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): SE

REG Reference to a national code

Ref country code: CH

Ref legal event code: AEN

GBTA Gb: translation of amended ep patent filed (gb section 77(6)(b)/1977)

Effective date: 19940824

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

Ref country code: LU

Payment date: 19941001

Year of fee payment: 9

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

Ref country code: CH

Payment date: 19941004

Year of fee payment: 9

ITF It: translation for a ep patent filed
R27A Patent maintained in amended form (corrected)

Effective date: 19940824

ET3 Fr: translation filed ** decision concerning opposition
NLR2 Nl: decision of opposition
NLR3 Nl: receipt of modified translations in the netherlands language after an opposition procedure
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19941117

Year of fee payment: 9

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

Ref country code: ES

Payment date: 19941129

Year of fee payment: 9

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

Ref country code: NL

Payment date: 19941130

Year of fee payment: 9

Ref country code: GR

Payment date: 19941130

Year of fee payment: 9

EAL Se: european patent in force in sweden

Ref document number: 86116555.3

REG Reference to a national code

Ref country code: GR

Ref legal event code: FG4A

Free format text: 3014089

REG Reference to a national code

Ref country code: ES

Ref legal event code: DC2A

Kind code of ref document: T5

Effective date: 19950816

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: 19951128

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF THE APPLICANT RENOUNCES

Effective date: 19951129

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

Ref country code: LI

Effective date: 19951130

Ref country code: CH

Effective date: 19951130

Ref country code: BE

Effective date: 19951130

BERE Be: lapsed

Owner name: ESSMANN & SCHAEFER G.M.B.H. & CO. K.G.

Effective date: 19951130

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

Ref country code: GR

Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY

Effective date: 19960531

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

Ref country code: NL

Effective date: 19960601

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: GR

Ref legal event code: MM2A

Free format text: 3014089

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 19960601

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010402

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

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

Ref country code: FR

Payment date: 20041129

Year of fee payment: 19

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

Ref country code: GB

Payment date: 20041201

Year of fee payment: 19

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

Ref country code: SE

Payment date: 20051124

Year of fee payment: 20

Ref country code: AT

Payment date: 20051124

Year of fee payment: 20

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

Effective date: 20051128

Ref country code: GB

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

Effective date: 20051128

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

Effective date: 20051128

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: 20060731

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20060731

EUG Se: european patent has lapsed