EP0451798A2 - Armature de béton nervurée à nervures obliques laminées à froid - Google Patents

Armature de béton nervurée à nervures obliques laminées à froid Download PDF

Info

Publication number
EP0451798A2
EP0451798A2 EP91105623A EP91105623A EP0451798A2 EP 0451798 A2 EP0451798 A2 EP 0451798A2 EP 91105623 A EP91105623 A EP 91105623A EP 91105623 A EP91105623 A EP 91105623A EP 0451798 A2 EP0451798 A2 EP 0451798A2
Authority
EP
European Patent Office
Prior art keywords
rib
ribs
reinforced
steel according
steel
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
EP91105623A
Other languages
German (de)
English (en)
Other versions
EP0451798B1 (fr
EP0451798A3 (en
Inventor
Dieter Dr.-Ing. Inst. für Stahlbeton Russwurm
Horst Dr.-Ing. Inst. für Stahlbeton Martin
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.)
AICHER, MAX, DIPL.-ING.
Original Assignee
INSTITUT fur STAHLBETON BEWEHRUNG EV
Aicher Max Dipl-Ing
INST STAHLBETON BEWEHRUNG EV
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 INSTITUT fur STAHLBETON BEWEHRUNG EV, Aicher Max Dipl-Ing, INST STAHLBETON BEWEHRUNG EV filed Critical INSTITUT fur STAHLBETON BEWEHRUNG EV
Publication of EP0451798A2 publication Critical patent/EP0451798A2/fr
Publication of EP0451798A3 publication Critical patent/EP0451798A3/de
Application granted granted Critical
Publication of EP0451798B1 publication Critical patent/EP0451798B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/02—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance
    • E04C5/03—Reinforcing elements of metal, e.g. with non-structural coatings of low bending resistance with indentations, projections, ribs, or the like, for augmenting the adherence to the concrete

Definitions

  • the invention relates to a reinforcing steel bar with a carbon content of 0.05 to 0.24% by weight and a manganese content of 0.2 to 1.2% by weight, which has cold-rolled helical ribs, without the formation of a longitudinal rib in the form of at least two , are arranged in the direction of the longitudinal axis of the rib rows.
  • the previously used ribbed reinforcing steels have as essential usage properties, in addition to the yield strength, the elongation at break A10 or A5 as well as a rib geometry which ensures a sufficient bond with the concrete.
  • the total twist corresponds to the curvatures in the broken state added up over the length of the beam and thus to the twists of the end cross-sections measured in tests on the single-span beam.
  • the beam is loaded up to the yield point and the curvatures are added up over the beam length.
  • the plastic twist includes the additional curvatures that occur after the yield point torque is exceeded until the beam breaks.
  • Fig. 1 the influence of the uniform expansion A g on the twistability is shown.
  • the length of a beam resting on the ends is plotted on the X axis and the curvature on the Y axis.
  • the dashed curve represents the conditions for a steel 1 with a uniform expansion A g of 2% and the solid line shows the conditions for a steel 2 with a uniform expansion A g of 5% is significantly increased.
  • the diagram also shows the rotation angles ⁇ of the joint rotation for the two cases.
  • Fig. 2 shows the influence of the steel characteristic on possible torque redistribution depending on the ratio of tensile strength / yield strength. It can also be seen here that if this ratio is increased, the sum of traffic and own load can be increased significantly.
  • Fig. 3 the elongation ⁇ of a rebar at a concrete crack is shown depending on the bond.
  • the solid line characterizes a hard bond, as is the case with high ribs, which run almost perpendicular to the rod axis and are at a large distance from one another, the elasticity of the reinforcing steel being limited to the area of the crack;
  • the dotted line characterizes a soft bond, in which the tensile strength and the deformation of the reinforcing steel are not limited to the area of the crack, since the concrete at the two cracks increases more easily from the steel. This creates a larger free expansion length.
  • the bond behavior of reinforcing steels is usually described by specifying a value for the related fin area f R. This value records the bond behavior only for the elastic range of the stress-strain line of the steel.
  • the influence of the height and spacing of the ribs on the explosive effect, ie on an early bond failure due to shifts between steel and concrete, is not taken into account.
  • the relative displacements between steel and concrete can no longer be ignored.
  • the rib geometry must be designed in such a way that the greatest possible relative displacements between steel and concrete can occur while avoiding an explosive effect.
  • the object of the invention is to make a ribbed steel available which is characterized by a higher uniform elongation, a greater ratio of tensile strength / yield strength and a softer bond than known cold-ribbed reinforcing steels.
  • the concrete should not be blown off.
  • the straightening ability of the rod by means of straightening rollers should be improved.
  • the concrete rib steel according to the invention is characterized by the features of claim 1. Advantageous configurations of this rebar are to be found in the subclaims.
  • the ribbed steel according to the invention is particularly suitable as a reinforcement element for reinforced concrete components which are dimensioned using local plastic deformations (joint rotation ⁇ ) of the reinforcement.
  • the rib spacings c and the angle of inclination ⁇ of the ribs with respect to the rod axis are reduced in comparison with known cold-rolled concrete rib steels.
  • the material flow during the application of the ribs is favored by cold deformation, so that the deformation effort for producing the final cross section can be reduced.
  • the result is an improvement in the elongation and the ratio of tensile strength / yield strength.
  • a softer bond is achieved due to this rib geometry and a maximum relative displacement between steel and concrete can be achieved without the concrete breaking off.
  • Reinforced ribs which are designed with 2.3 or more rows of ribs according to this rib geometry, have an almost circular envelope, which simplifies the straightening process customary for cold-rolled steels and also significantly reduces the noise level associated with straightening.
  • the reinforcing ribs according to the invention are preferably used as rods or wires of reinforcing steel mesh.
  • the cold-ribbed reinforcing steel 1 shown in FIGS. 4 to 6 has an approximately circular core cross-section 2 shown hatched in FIG. 5, as well as 3 rows of ribs 3, 4 and 5 distributed around the circumference, the parts of a thread for screwing on one with a counter thread provided anchoring or connecting body.
  • the rows of ribs run parallel to the bar axis 6.
  • the geometrical sizes of the ribs for rebars with a nominal diameter of 4 to 16 mm are:
  • the angle of inclination ⁇ of the rib flanks in old degrees is preferably in the range of 40 ° ⁇ ⁇ 60 °, the ratio of the base width b of the ribs to the rib height h should be in the range 1.5 ⁇ b / h ⁇ 3.3.
  • Fig. 7 the developments of a known and a concrete rib steel according to the invention for each row of ribs are shown schematically.
  • Rib steel on the left side is based on an inclination angle ⁇ of 50 ° and a rib spacing of c / d s based on the bar diameter of approximately 1.00.
  • the suitability for that Straightening of the rod is greater, the closer its outer contour approaches that of a cylindrical body.
  • the rib geometry of the steel according to the invention is optimally designed with regard to this requirement, namely by an angle of inclination of the inclined ribs to the rod axis in the range between 30 ° and 40 °. Also by reducing the fin height h and the fin spacing c compared to known cold rolled steels.
  • the steels have a yield strength ratio R m / R e of 1.06 to 1.08, the uniform elongation A g is between 2.8 and 3.6%.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Rod-Shaped Construction Members (AREA)
EP91105623A 1990-04-09 1991-04-09 Armature de béton nervurée à nervures obliques laminées à froid Expired - Lifetime EP0451798B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4011486A DE4011486A1 (de) 1990-04-09 1990-04-09 Betonrippenstahl mit kaltgewalzten schraegrippen und dessen verwendung
DE4011486 1990-04-09

Publications (3)

Publication Number Publication Date
EP0451798A2 true EP0451798A2 (fr) 1991-10-16
EP0451798A3 EP0451798A3 (en) 1992-12-02
EP0451798B1 EP0451798B1 (fr) 1995-09-27

Family

ID=6404087

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91105623A Expired - Lifetime EP0451798B1 (fr) 1990-04-09 1991-04-09 Armature de béton nervurée à nervures obliques laminées à froid

Country Status (4)

Country Link
EP (1) EP0451798B1 (fr)
AT (1) ATE128507T1 (fr)
DE (2) DE4011486A1 (fr)
DK (1) DK0451798T3 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5889411A (en) * 1997-02-26 1999-03-30 Xilinx, Inc. FPGA having logic element carry chains capable of generating wide XOR functions
US5907248A (en) * 1997-02-26 1999-05-25 Xilinx, Inc. FPGA interconnect structure with high-speed high fanout capability
US5920202A (en) * 1997-02-26 1999-07-06 Xilinx, Inc. Configurable logic element with ability to evaluate five and six input functions
US6107827A (en) * 1997-02-26 2000-08-22 Xilinx, Inc. FPGA CLE with two independent carry chains
US6201410B1 (en) 1997-02-26 2001-03-13 Xilinx, Inc. Wide logic gate implemented in an FPGA configurable logic element
US6204689B1 (en) 1997-02-26 2001-03-20 Xilinx, Inc. Input/output interconnect circuit for FPGAs
EP1231331A2 (fr) * 2001-02-08 2002-08-14 Badische Stahlwerke GmbH Acier à béton nervuré et béton armé
FR2919639A1 (fr) * 2007-07-30 2009-02-06 Ugitech Fil crante pour armature de structure en beton, en acier inoxydable duplex.

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4400974A1 (de) * 1994-01-14 1995-07-20 Inst Stahlbeton Bewehrung Ev Betonstahl
CN107803629B (zh) * 2017-10-27 2021-04-13 阳春新钢铁有限责任公司 一种提高螺纹钢力学性能的方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609638A1 (de) * 1966-01-04 1970-07-30 Filiton Ag Bewehrungsstab fuer den Stahlbetonbau
DE2231354A1 (de) * 1972-06-27 1974-01-10 Moossche Eisenwerke Ag Bewehrungsstab fuer stahlbeton
FR2315589A1 (fr) * 1975-06-23 1977-01-21 Kobe Steel Ltd Barre d'acier destinee au renforcement du beton et de section transversale non circulaire
DE2622524A1 (de) * 1976-05-20 1977-11-24 Janovic Kassian Anton Dipl Ing Gerippter betonstahl und spannstahl
DE2821902A1 (de) * 1978-05-19 1979-11-22 Dyckerhoff & Widmann Ag Betonbewehrungsstab, insbesondere spannstab
EP0306887A1 (fr) * 1987-09-11 1989-03-15 Dyckerhoff & Widmann Aktiengesellschaft Barre d'armature pour béton laminée à chaud, en particulier barre nervurée pour béton

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT193914B (de) * 1954-06-02 1957-12-10 Oesterr Alpine Montan Stahl für Bewehrungszwecke im Bauwesen
DE2063451B2 (de) * 1970-12-23 1974-07-11 Stahlwerke Peine-Salzgitter Ag, 3150 Peine Verwendung eines warmgewalzten Betonrippenbaustahles für Baustahlmatten
DE2123818B2 (de) * 1971-05-13 1979-08-16 Helmut 4224 Huenxe Dickmann Verfahren und Vorrichtung zum Herstellen eines gerippten Betonbewehrungsstabs
DE2233788C3 (de) * 1972-07-10 1984-09-13 Badische Stahlwerke AG, 7640 Kehl Schweissbarer naturharter betonstahl mit einer mindeststreckgrenze von 50kp/mm hoch 2
DD221759B1 (de) * 1984-02-28 1989-05-03 Florin Stahl Walzwerk Betonstahl warmgewalzt und thermisch verfestigt
DE3705722A1 (de) * 1986-12-19 1988-07-07 Hiendl Heribert Bewehrungsanschluss
DE8717650U1 (de) * 1987-09-11 1989-08-31 ARBED S.A., Luxemburg/Luxembourg Betonbewehrungsstab, insbesondere Betonrippenstab
DD268258A1 (de) * 1988-01-08 1989-05-24 Florin Stahl Walzwerk Hoeherfester stahl, insbesondere betonstahl bzw. ziehereivormaterial, mit verbesserten werkstoffeigenschaften und besserer verarbeitbarkeit
DE3816930A1 (de) * 1988-05-11 1989-11-23 Heribert Hiendl Rueckbiegefaehiger betonstahl

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1609638A1 (de) * 1966-01-04 1970-07-30 Filiton Ag Bewehrungsstab fuer den Stahlbetonbau
DE2231354A1 (de) * 1972-06-27 1974-01-10 Moossche Eisenwerke Ag Bewehrungsstab fuer stahlbeton
FR2315589A1 (fr) * 1975-06-23 1977-01-21 Kobe Steel Ltd Barre d'acier destinee au renforcement du beton et de section transversale non circulaire
DE2622524A1 (de) * 1976-05-20 1977-11-24 Janovic Kassian Anton Dipl Ing Gerippter betonstahl und spannstahl
DE2821902A1 (de) * 1978-05-19 1979-11-22 Dyckerhoff & Widmann Ag Betonbewehrungsstab, insbesondere spannstab
EP0306887A1 (fr) * 1987-09-11 1989-03-15 Dyckerhoff & Widmann Aktiengesellschaft Barre d'armature pour béton laminée à chaud, en particulier barre nervurée pour béton

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Beton-Kalender 1988, Ernst und Sohn, Seiten 180, 181, 198, 199 *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6204690B1 (en) 1997-02-26 2001-03-20 Xilinx, Inc. FPGA architecture with offset interconnect lines
US6124731A (en) * 1997-02-26 2000-09-26 Xilinx, Inc. Configurable logic element with ability to evaluate wide logic functions
US5914616A (en) * 1997-02-26 1999-06-22 Xilinx, Inc. FPGA repeatable interconnect structure with hierarchical interconnect lines
US5920202A (en) * 1997-02-26 1999-07-06 Xilinx, Inc. Configurable logic element with ability to evaluate five and six input functions
US5889411A (en) * 1997-02-26 1999-03-30 Xilinx, Inc. FPGA having logic element carry chains capable of generating wide XOR functions
US6107827A (en) * 1997-02-26 2000-08-22 Xilinx, Inc. FPGA CLE with two independent carry chains
US5907248A (en) * 1997-02-26 1999-05-25 Xilinx, Inc. FPGA interconnect structure with high-speed high fanout capability
US6201410B1 (en) 1997-02-26 2001-03-13 Xilinx, Inc. Wide logic gate implemented in an FPGA configurable logic element
US6051992A (en) * 1997-02-26 2000-04-18 Xilinx, Inc. Configurable logic element with ability to evaluate five and six input functions
US6204689B1 (en) 1997-02-26 2001-03-20 Xilinx, Inc. Input/output interconnect circuit for FPGAs
US6292022B2 (en) 1997-02-26 2001-09-18 Xilinx, Inc. Interconnect structure for a programmable logic device
US6448808B2 (en) 1997-02-26 2002-09-10 Xilinx, Inc. Interconnect structure for a programmable logic device
EP1231331A2 (fr) * 2001-02-08 2002-08-14 Badische Stahlwerke GmbH Acier à béton nervuré et béton armé
EP1231331A3 (fr) * 2001-02-08 2002-12-04 Badische Stahlwerke GmbH Acier à béton nervuré et béton armé
FR2919639A1 (fr) * 2007-07-30 2009-02-06 Ugitech Fil crante pour armature de structure en beton, en acier inoxydable duplex.
EP2025826A1 (fr) * 2007-07-30 2009-02-18 Ugitech Fil cranté pour armature de structure en béton, en acier inoxydable duplex.

Also Published As

Publication number Publication date
DK0451798T3 (da) 1996-01-15
EP0451798B1 (fr) 1995-09-27
EP0451798A3 (en) 1992-12-02
ATE128507T1 (de) 1995-10-15
DE59106565D1 (de) 1995-11-02
DE4011486A1 (de) 1991-10-10

Similar Documents

Publication Publication Date Title
EP0306887B1 (fr) Barre d'armature pour béton laminée à chaud, en particulier barre nervurée pour béton
DE4315270C2 (de) Stahlfaserverstärkter Beton mit hoher Biegefestigkeit
DE3131606A1 (de) Verbundmaterial aus kautschuk mit darin eingebettetem metallcord und dessen verwendung
EP0172544B1 (fr) Procédé de traitement thermique d'aciers laminés à chaud sous forme de barres ou de fils pour béton précontraint
EP0451798B1 (fr) Armature de béton nervurée à nervures obliques laminées à froid
EP1073809B1 (fr) Fibre pour le renfort de materiaux coulables aptes au durcissement, ainsi que procede et dispositif pour sa fabrication
DE3131078C1 (de) "Verankerungs- oder Verbindungskörper für Stahlstäbe mit Oberflächenprofilierungen in Form von Rippen"
AT211767B (de) Verfahren zur Herstellung von an Teilen seines Umfanges quer gerilltem Bewehrungsstahl
EP1231331B1 (fr) Acier à béton nervuré et béton armé
EP0006085B1 (fr) Procédé pour la fabrication de barres ou de fils pour l'ancrage et utilisation desdits barres ou fils dans des dispositifs d'ancrage dans le sol ou dans la roche
WO2000046460A1 (fr) Fibre de renforcement pour beton a fibres d'acier
DE3045007A1 (de) Vorrichtung zur verankerung einer vorgespannten bewehrung mittels keilen
EP0738361B1 (fr) Acier d'armature lamine a froid et son procede de production
EP0777067B1 (fr) Pièce de liaison d'extrémité de câble
DE1921169A1 (de) Verwendung von Walzdraht fuer Verbundsysteme
CH717912B1 (de) Armierungsdraht.
DE2622524A1 (de) Gerippter betonstahl und spannstahl
DE2325611A1 (de) Verfahren zum herstellen von armierungsstaeben aus stahl
DE1508448C3 (de) Anwendung des Verfahrens zur Herstellung von Betonbewehrungsstäben mit von der Drehsymmetrie abweichenden Oberflächenprofilierungen
DD288418A5 (de) Gewalzter armierungsstab mit hohen verbundeigenschaften
AT309756B (de) Draht oder Stab, insbesondere Spanndraht für Spannbetonbewehrung, sowie Verfahren und Vorrichtung zu seiner Herstellung
DE1184482B (de) Bewehrungsmatte
DE1777052A1 (de) Verfahren zur Herstellung von kaltverformtem Bewehrungsstahl fuer Beton
AT215647B (de) Kaltverwindeverfahren und danach hergestellter Betonbewehrungsstab
DE1609638A1 (de) Bewehrungsstab fuer den Stahlbetonbau

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 CH DE DK FR GB IT LI LU NL SE

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 CH DE DK FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19930521

17Q First examination report despatched

Effective date: 19931214

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

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

REF Corresponds to:

Ref document number: 128507

Country of ref document: AT

Date of ref document: 19951015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59106565

Country of ref document: DE

Date of ref document: 19951102

REG Reference to a national code

Ref country code: CH

Ref legal event code: PUE

Owner name: INSTITUT FUER STAHLBETON BEWEHRUNG E.V. TRANSFER-

RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: AICHER, MAX, DIPL.-ING.

ITF It: translation for a ep patent filed

Owner name: DE DOMINICIS & MAYER S.R.L.

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

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

Effective date: 19960103

NLT2 Nl: modifications (of names), taken from the european patent patent bulletin

Owner name: AICHER, MAX, DIPL.-ING.

ET Fr: translation filed
NLXE Nl: other communications concerning ep-patents (part 3 heading xe)

Free format text: PAT.BUL.02/96 PAGE 213:CORR.:AICHER, MAX, DIPL.-ING.

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

Ref country code: DE

Payment date: 19970428

Year of fee payment: 7

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

Ref country code: GB

Payment date: 19970502

Year of fee payment: 7

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

Ref country code: FR

Payment date: 19970516

Year of fee payment: 7

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

Ref country code: SE

Payment date: 19970522

Year of fee payment: 7

Ref country code: BE

Payment date: 19970522

Year of fee payment: 7

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

Ref country code: DK

Payment date: 19970523

Year of fee payment: 7

Ref country code: CH

Payment date: 19970523

Year of fee payment: 7

Ref country code: AT

Payment date: 19970523

Year of fee payment: 7

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

Ref country code: NL

Payment date: 19970529

Year of fee payment: 7

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

Ref country code: LU

Payment date: 19970923

Year of fee payment: 7

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: 19980409

Ref country code: GB

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

Effective date: 19980409

Ref country code: AT

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

Effective date: 19980409

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: 19980410

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

Ref country code: LI

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

Effective date: 19980430

Ref country code: FR

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

Effective date: 19980430

Ref country code: DK

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

Effective date: 19980430

Ref country code: CH

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

Effective date: 19980430

Ref country code: BE

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

Effective date: 19980430

BERE Be: lapsed

Owner name: AICHER MAX

Effective date: 19980430

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: 19981101

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

Effective date: 19980409

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Effective date: 19981101

EUG Se: european patent has lapsed

Ref document number: 91105623.2

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

Ref country code: DE

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

Effective date: 19990202

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

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: 20050409