EP0747186A1 - Dispositif pour chamfreiner des panneaux en placoplâtre - Google Patents

Dispositif pour chamfreiner des panneaux en placoplâtre Download PDF

Info

Publication number
EP0747186A1
EP0747186A1 EP95108957A EP95108957A EP0747186A1 EP 0747186 A1 EP0747186 A1 EP 0747186A1 EP 95108957 A EP95108957 A EP 95108957A EP 95108957 A EP95108957 A EP 95108957A EP 0747186 A1 EP0747186 A1 EP 0747186A1
Authority
EP
European Patent Office
Prior art keywords
circular saw
plasterboard
pair
units
gkp
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
EP95108957A
Other languages
German (de)
English (en)
Other versions
EP0747186B1 (fr
Inventor
Horst Beck
Johannes Schöppl
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.)
Saint Gobain Rigips GmbH
Original Assignee
Rigips 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=8219348&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0747186(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Rigips GmbH filed Critical Rigips GmbH
Priority to ES95108957T priority Critical patent/ES2162880T3/es
Priority to DK95108957T priority patent/DK0747186T3/da
Priority to EP95108957A priority patent/EP0747186B1/fr
Priority to AT95108957T priority patent/ATE204528T1/de
Publication of EP0747186A1 publication Critical patent/EP0747186A1/fr
Application granted granted Critical
Publication of EP0747186B1 publication Critical patent/EP0747186B1/fr
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/16—Saw benches
    • B27B5/22—Saw benches with non-feedable circular saw blade
    • B27B5/24—Saw benches with non-feedable circular saw blade the saw blade being adjustable according to depth or angle of cut
    • B27B5/246—End cutting of automatically laterally-fed travelling workpieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
    • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
    • B28D1/048—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs with a plurality of saw blades

Definitions

  • the invention relates to a device for chamfering plasterboard, in particular for simultaneously chamfering the transverse edges of two plasterboards lying one above the other.
  • gypsum plasterboards are produced in a continuous manufacturing process by forming a tub from a cardboard web of certain width, the edges of which are bent up, into which flowable gypsum pulp is distributed by a calibration roller, which is then passed through another cardboard, the so-called Back cardboard, covered and the upstanding edges of the first cardboard, the view side cardboard, are folded over the back cardboard and glued.
  • the resulting plasterboard strand is cut into pieces that can be up to 400 cm and longer.
  • the longitudinal edges of these gypsum plasterboard pieces are deformed into a cardboard-covered edge by means of corresponding lateral shaped pieces.
  • the transverse edges, which are created by dividing the strand into individual plates, are, however, rectangular and more or less rough.
  • gypsum plasterboard is generally carried out by processing panels of certain dimensions that can be used as a whole, for example, storey-high, so that there are only vertical longitudinal edge joints or horizontal longitudinal edge joints. In other cases, however, the processing of several gypsum plasterboards or pieces of gypsum plasterboard is required, which also have to be butted and filled with the transverse edges. Such right-angled transverse joints and panels with frayed cardboard edges cannot be filled in this way, they have to be prepared for the filling, which means that they have to be chamfered.
  • this chamfer can be produced by hand with a knife or, better, with a planer, but this is a lengthy job and the resulting chamfer can also be faulty, since the planer is guided by hand, especially if the Chamfer is performed by a layperson.
  • the delivery of the two plasterboard panels lying one above the other with their visible sides takes place by means of endless conveyor belts which are arranged in a corresponding machine frame in a synchronous manner while pressure is exerted on the plasterboard panel from above.
  • the plasterboard lies on a table-like frame.
  • a pair is arranged virtually stationary on one side of the machine frame or the plasterboard for its transverse edge pair, while the opposite pair, again consisting of two circular saws, is provided for the other pair of transverse edges of the plasterboard and from this can be moved away in order to be able to be set on plates of different lengths.
  • Each aggregate of the pairs consisting of a circular saw and drive motor can be pivoted, horizontally and vertically adjusted, including the pair of circular saws known as stationary. Fixed in this context is only meant to mean that only the non-"fixed” pair needs to be set up again when changing over to plates of different lengths.
  • the circular saw blades are driven electrically, pneumatically or hydraulically at adjustable speeds.
  • the circular saw blades are preferably those with fine teeth or saw blades with diamonds or hard metal.
  • the machine frame forms a large table-like receptacle, on which at least two plasterboard stack can be accommodated, with their usual dimensions occurring in practice.
  • the machine frame is designed and planned according to known mechanical engineering rules so that it can fulfill its task.
  • It consists of a frame that forms the table-like receptacle for the GKP in its upper area. B. by means of support rails 10, which can also be designed with low friction and which carry the GKP stable and safe.
  • Transport devices in the form of chains or belts 6 and 7 are arranged below the plane in which the GKP are located, and they grip the GKP stack from below.
  • Pressure rollers 8 and 9 are provided above the GKP and bring the GKP stack into engagement with the transport chains 6.
  • the transport chain 6 in the left half of FIG. 1 is coupled via a shaft 12 to the transport chain 7 in the right half of FIG. 1, so that only one side needs to be driven.
  • the pressure rollers 8, 9 run empty and are available in a suitable number, although only two of them are shown in FIG. 1.
  • the pressure rollers are mounted in a correspondingly designed frame or frame (not shown) which is equipped with devices for pressing the pressure rollers onto the upper 13 of the plates of the GKP stack.
  • the transport chains 6 and 7 grasp the lower plate 14 of the GKP stack 1 in frictional engagement, so that the GKP stack with adjustable speed z. B. is movable in the direction of arrow 2.
  • the two circular saw units of each pair 4 and 5 form an angle with one another which can be selected and which corresponds to the desired chamfer and the thickness of the plates 13 and 14 to be chamfered can also be adjusted.
  • the drive means 15 can be of an electrical, pneumatic or hydraulic type.
  • Each GKP stack is now transported by the transport devices on the machine frame in such a way that the actual, cardboard-covered longitudinal edges of the GKP are at right angles to the transport direction.
  • the cross edges of the GKP but parallel to the direction of transport and so that their cross edges, the left 17 and right 18 now protrude an adjustable amount laterally beyond the table-like receptacle.
  • transverse edges 17 and 18 projecting laterally beyond the table-like receptacle of the GKP stack are now in the engagement area of a pair of circular saw units, namely the pair of units 4 on the left side edge and the pair of units 5 on the right side edge (FIGS. 1 and 2).
  • this chamfering process is nearing its end, since the GKP stack moves in the direction of arrow 2.
  • the device Since, as described above, the device must be usable for GKP of all common lengths, which are between 250 and 600 cm, the machine frame, the transport device, the table-like receptacle and other machine parts must be designed in such a way that they can be adjusted to these lengths.
  • the transport chains 6 and 7 are driven via the shaft 12 only from one side.
  • the shaft 12 and other parts can be telescopic or foldable.
  • the table-like receptacle with the support rails 10, the devices carrying the pressure rollers 8 and 9 could be designed like scissors and be moved together, both from one side and from both sides.
  • the arrangement of the circular saw units 4 and 5 in the exemplary embodiment shown is such that the unit 4 is "stationary", while the other 5, as shown by the double arrow 19, can be moved towards and away from the GKP because it is assumed here that the device is adapted to different GKP lengths by "pushing" the device to the left.
  • Both pairs of circular saw units including the "stationary" pair 14, are universally adjustable. "Fixed location” is only intended to mean here that when the length of the GKP changes, only one pair, namely pair 5, needs to be set up again.
  • the GKP pair moves with its transverse edges past the fixed circular saw unit pairs 4 and 5 and is chamfered
  • the stack consisting only of two GKP according to the above description can be expanded to form a stack with an integer variety of GKP pairs, e.g. B. to a stack of 20 GKP, d. H. to a stack of 10 pairs or more.
  • the multiple stack would be fixed and the pairs of circular saw units 4 and 5 would be chamfered over the transverse edges or transverse edges.
  • the training could then be supplemented so that the pair of circular saw units chamfer one GKP pair both during the forward movement and the next pair above or below during the forth movement.
  • the circular saw aggregate pairs 4 and 5 are guided in rails in this embodiment, have drive motors for the back-and-forth movement and devices with which each pair 4 and 5 is raised or lowered by the amount of the thickness of the second plates after each course over the transverse edge before the next course begins. All of these operations could be program controlled. To reduce dust pollution, the circular saw units are equipped with suction devices.
  • the angle which the chamfers form on the two superimposed plates corresponds to the angle which the circular saw blades form with one another. They virtually represent the legs of the angle and the bisector 20 of the angle lies in the plane in which the GKPs lying one on top of the other touch with their viewing side boxes. Instead of the term “chamfering” or “chamfering”, the term “chamfering” or “chamfering” is also used.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mining & Mineral Resources (AREA)
  • Devices For Post-Treatments, Processing, Supply, Discharge, And Other Processes (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
EP95108957A 1995-06-10 1995-06-10 Procédé pour chamfreiner des panneaux en placoplâtre Revoked EP0747186B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES95108957T ES2162880T3 (es) 1995-06-10 1995-06-10 Procedimiento para el biselado de planchas de yeso encartonado.
DK95108957T DK0747186T3 (da) 1995-06-10 1995-06-10 Fremgangsmåde til affasning af gipskartonplader
EP95108957A EP0747186B1 (fr) 1995-06-10 1995-06-10 Procédé pour chamfreiner des panneaux en placoplâtre
AT95108957T ATE204528T1 (de) 1995-06-10 1995-06-10 Verfahren zum abfasen von gipskartonplatten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95108957A EP0747186B1 (fr) 1995-06-10 1995-06-10 Procédé pour chamfreiner des panneaux en placoplâtre

Publications (2)

Publication Number Publication Date
EP0747186A1 true EP0747186A1 (fr) 1996-12-11
EP0747186B1 EP0747186B1 (fr) 2001-08-22

Family

ID=8219348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95108957A Revoked EP0747186B1 (fr) 1995-06-10 1995-06-10 Procédé pour chamfreiner des panneaux en placoplâtre

Country Status (4)

Country Link
EP (1) EP0747186B1 (fr)
AT (1) ATE204528T1 (fr)
DK (1) DK0747186T3 (fr)
ES (1) ES2162880T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125705A2 (fr) * 2000-02-02 2001-08-22 Fratelli Toni S.a.s. di Toni Enrico, Achille & C. Machine pour réaliser des rainures dans les bords de plaques ou de carreaux

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401421A (en) * 1971-04-06 1975-07-16 Ci Caravans Ltd Trimming edges of panels
US3910170A (en) * 1974-05-09 1975-10-07 Connelly Containers Inc V-notching machine for corrugated board
US4104938A (en) * 1975-05-23 1978-08-08 United States Gypsum Company Apparatus for kerfing gypsum wallboard
GB2006107A (en) * 1977-10-21 1979-05-02 Delbeke J P Adjustable saw
EP0333994A2 (fr) * 1988-03-23 1989-09-27 Nippon CMK Corp. Méthode de chanfreinage de plaques
US4969380A (en) * 1989-11-27 1990-11-13 National Gypsum Company Gypsum board grooving system
DE4227760A1 (de) * 1992-08-21 1994-03-03 Hans Schmitz Verblendstein

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1401421A (en) * 1971-04-06 1975-07-16 Ci Caravans Ltd Trimming edges of panels
US3910170A (en) * 1974-05-09 1975-10-07 Connelly Containers Inc V-notching machine for corrugated board
US4104938A (en) * 1975-05-23 1978-08-08 United States Gypsum Company Apparatus for kerfing gypsum wallboard
GB2006107A (en) * 1977-10-21 1979-05-02 Delbeke J P Adjustable saw
EP0333994A2 (fr) * 1988-03-23 1989-09-27 Nippon CMK Corp. Méthode de chanfreinage de plaques
US4969380A (en) * 1989-11-27 1990-11-13 National Gypsum Company Gypsum board grooving system
DE4227760A1 (de) * 1992-08-21 1994-03-03 Hans Schmitz Verblendstein

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
HANUSCH: "Gipskartonplatten", 1978, pages: 38 FF.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1125705A2 (fr) * 2000-02-02 2001-08-22 Fratelli Toni S.a.s. di Toni Enrico, Achille & C. Machine pour réaliser des rainures dans les bords de plaques ou de carreaux
EP1125705A3 (fr) * 2000-02-02 2004-02-25 Fratelli Toni S.a.s. di Toni Enrico, Achille & C. Machine pour réaliser des rainures dans les bords de plaques ou de carreaux

Also Published As

Publication number Publication date
EP0747186B1 (fr) 2001-08-22
DK0747186T3 (da) 2001-10-29
ATE204528T1 (de) 2001-09-15
ES2162880T3 (es) 2002-01-16

Similar Documents

Publication Publication Date Title
DE2406147A1 (de) Vorrichtung zum zerschneiden von holzbahnen u.dgl
DE2524100A1 (de) Einrichtung zum aufarbeiten von werkstuecken in form von holz-laengsverschnitt kleiner laenge zu nutzholz, beispielsweise leisten, balken und/oder dgl.
DE10259814B9 (de) Werkstücküberführungs-Verfahren und Werkstücküberführungs-Einrichtung für Reihen-Pressenstraße
EP3525997B1 (fr) Procédé et dispositif de division de pièces en forme de plaques
DE4414322C2 (de) Verfahren zum gleichzeitigen Abfasen der Querkanten mindestens zweier übereinanderliegenden Gipskastenplatten
DE2215075C2 (de) Einrichtung zur Herstellung von Eck- und Kantenbeschlägen für Kästen
DE3107438A1 (de) "einrichtung zum zentrierenden ausrichten von plattenfoermigen werkstuecken"
EP0747186B1 (fr) Procédé pour chamfreiner des panneaux en placoplâtre
AT385449B (de) Vorrichtung zum aufteilen von plattenfoermigen werkstuecken
AT398547B (de) Plattenaufteilanlage
DE3903215A1 (de) An einer elektrischen handhobelmaschine oder handschleifmaschine zu montierende fuehrungsvorrichtung
DE1949577A1 (de) Querschneidemaschine
DE19500044C2 (de) Einrichtung zum Ausrichten und Stapeln von Formatzuschnitten
AT396766B (de) Einrichtung zum buntaufteilen von plattenförmigen werkstücken
DE3402497C2 (de) Vorrichtung zum Kappen von Hölzern und zum anschließenden Bearbeiten der Holzabschnitte an den Seitenkanten
DE4435574C1 (de) Vorrichtung zur teilweisen oder vollständigen Demontage von defekten Holzpaletten
DE2545274A1 (de) Verfahren und maschinenanlage zur herstellung von keilzinkenverbindungen fuer die holzlaengsverleimung
DE10303136B3 (de) Band- und Platinenabstützung für ein Schneidwerkzeug mit zwei Schneidbalken
DE2142726A1 (de) Plattenaufteilanlage
DE1962320A1 (de) Verfahren zum Herstellen in kontinuierlichem Fluss von Schalungsplatten und Vorrichtung zur Durchfuehrung dieses Verfahrens sowie mit dem neuen Verfahren hergestellte Schalungsplatte
AT406458B (de) Einrichtung zum runden von ecken an platten, insbesondere leiterplatten
DE10153637C2 (de) Blechbearbeitungsmaschine mit Werkzeugstation und Werkstück-Auflagetisch
AT407724B (de) Plattenaufteilanlage
DE848898C (de) Profileisenschere
AT395404B (de) Einrichtung bei einer buntaufteilanlage

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 DK ES FR GB IT NL SE

AX Request for extension of the european patent

Free format text: LT;SI

17P Request for examination filed

Effective date: 19970108

17Q First examination report despatched

Effective date: 19990705

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

RTI1 Title (correction)

Free format text: METHOD FOR CHAMFERING GYPSUM PLASTER BOARDS

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE DK ES FR GB IT NL SE

REF Corresponds to:

Ref document number: 204528

Country of ref document: AT

Date of ref document: 20010915

Kind code of ref document: T

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011117

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2162880

Country of ref document: ES

Kind code of ref document: T3

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PLBQ Unpublished change to opponent data

Free format text: ORIGINAL CODE: EPIDOS OPPO

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

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

Ref country code: GB

Payment date: 20020607

Year of fee payment: 8

Ref country code: FR

Payment date: 20020607

Year of fee payment: 8

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

Ref country code: AT

Payment date: 20020611

Year of fee payment: 8

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

Ref country code: SE

Payment date: 20020612

Year of fee payment: 8

Ref country code: NL

Payment date: 20020612

Year of fee payment: 8

Ref country code: DK

Payment date: 20020612

Year of fee payment: 8

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

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

Ref country code: ES

Payment date: 20020625

Year of fee payment: 8

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

Ref country code: BE

Payment date: 20020702

Year of fee payment: 8

26 Opposition filed

Opponent name: GEBR. KNAUF WESTDEUTSCHE GIPSWERKE

Effective date: 20020507

26 Opposition filed

Opponent name: GRENZEBACH MASCHINENBAU GMBH

Effective date: 20020518

Opponent name: GEBR. KNAUF WESTDEUTSCHE GIPSWERKE

Effective date: 20020507

NLR1 Nl: opposition has been filed with the epo

Opponent name: GRENZEBACH MASCHINENBAU GMBH

Opponent name: GEBR. KNAUF WESTDEUTSCHE GIPSWERKE

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

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

Ref country code: GB

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

Effective date: 20030610

Ref country code: AT

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

Effective date: 20030610

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

Ref country code: SE

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

Effective date: 20030611

Ref country code: ES

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

Effective date: 20030611

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

Ref country code: DK

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

Effective date: 20030630

Ref country code: BE

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

Effective date: 20030630

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

BERE Be: lapsed

Owner name: *RIGIPS G.M.B.H.

Effective date: 20030630

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

Ref country code: NL

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

Effective date: 20040101

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

Effective date: 20030610

EUG Se: european patent has lapsed
NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20040101

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20030611

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

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

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20040401

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: 20030630

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: GRENZEBACH MASCHINENBAU GMBH

Effective date: 20020518

Opponent name: GEBR. KNAUF WESTDEUTSCHE GIPSWERKE

Effective date: 20020507