[go: up one dir, main page]

EP0214212B1 - Verfahren und anordnung zur dispersion ultrafeiner pulver - Google Patents

Verfahren und anordnung zur dispersion ultrafeiner pulver Download PDF

Info

Publication number
EP0214212B1
EP0214212B1 EP86901422A EP86901422A EP0214212B1 EP 0214212 B1 EP0214212 B1 EP 0214212B1 EP 86901422 A EP86901422 A EP 86901422A EP 86901422 A EP86901422 A EP 86901422A EP 0214212 B1 EP0214212 B1 EP 0214212B1
Authority
EP
European Patent Office
Prior art keywords
product
powder
piston
mass
fluid
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
EP86901422A
Other languages
English (en)
French (fr)
Other versions
EP0214212A1 (de
Inventor
Jean-Yves Deysson
Jacques Résidence de la Ronche KARIAN
Philippe Malgrat
Michel 68 Rue Du Petit Bois Blondeau
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.)
Bertin Technologies SAS
Original Assignee
Bertin et Cie SA
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 Bertin et Cie SA filed Critical Bertin et Cie SA
Priority to AT86901422T priority Critical patent/ATE46631T1/de
Publication of EP0214212A1 publication Critical patent/EP0214212A1/de
Application granted granted Critical
Publication of EP0214212B1 publication Critical patent/EP0214212B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/14—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas designed for spraying particulate materials
    • B05B7/1404—Arrangements for supplying particulate material
    • B05B7/1413—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device
    • B05B7/1422—Apparatus to be carried on or by a person, e.g. by hand; Apparatus comprising a container fixed to the discharge device the means for supplying particulate material comprising moving mechanical means, e.g. to impart vibration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/06—Apparatus for generating artificial fog or smoke screens

Definitions

  • the present invention relates to a method and a device for suspending in a gas ultra-fine powders, that is to say particles whose size is less than a micrometer, in particular for dispersing these powders in the atmosphere.
  • US-A-3,854,634 in the name of Robert J. Hart, describes a device for suspending a powder, and which comprises a container, in which the powder is placed, and a plate which can slide in the container and rest on the free surface of the powder.
  • a gas under pressure is blown through the plate, which lifts it above the powder.
  • the gas escapes laterally along the upper surface of the powder and entraining part of it.
  • the plate descends as a result of the departure of the powder, since the interval between the free surface of the powder and the underside of the plate remains constant.
  • the extraction rate of the powder can be controlled by sending part of the gas from the telescopic tube directly to the upper face of the plate, thus reducing the pressure difference between the two faces of the plate which reduces the interval between the plate and the powder.
  • This simple device has a drawback which results from the fact that the main force which makes the plate move is the weight of the latter.
  • the orientation of the device must be such that the plate descends substantially vertically.
  • the device must be protected from strong tremors and accelerations, which obviously would disturb its operation: an acceleration upwards will cause a displacement of the plate in the same direction, and a stop of the suspension of the powder. ; similarly, significant downward acceleration can operate the machine as a compactor.
  • the apparatus of this patent cannot operate on board a land or air vehicle.
  • Document CA-A-874 283 describes a device similar to the previous one, but in which the direction of gas flow is reversed so that a pressure difference, due to the pressure drop in the gas, creates a force which adds to the weight of the plate.
  • Document US-A-4,023,778 describes a device for suspending a chemical in compacted form in water, this device comprising a reservoir in which the product to be dispersed is enclosed between a movable piston and a antagonistic part which has a concave shape towards the inside of the container, for example frustoconical, and comprises an outlet nozzle, a conduit for bringing the water under pressure to the face of the piston opposite to the mass of the product, under suitable pressure moving the piston and the mass of product towards the opposing part, and conduits for making the water follow a path comprising an inlet passage in the reservoir, the outlet nozzle, and an intermediate space in which the water moves along the free surface of the product to erode it and entrain it towards the nozzle.
  • This intermediate space has an almost constant shape and dimensions thanks to the fact that, as in the devices mentioned above, there is a relative displacement of the mass of product and the opposing part while the product is gradually being eroded.
  • the object of the invention is to provide a process analogous to that which employs this device, and which can be used for the suspension of ultrafine powders in a gas, independently of the conditions of orientation, vibrations and external accelerations. .
  • a reservoir is used, in which the opposing surface is fixed, the powder to be dispersed is placed against one face of the piston, the free surface of the powder being opposite the piston and screws. with respect to said antagonistic surface and a pressure is exerted on the face of the piston which is opposite to the powder, which differs from that which is applied to the free surface by the amount necessary to effect said displacement of the powder with respect to on the antagonistic surface.
  • This embodiment corresponds to a device which has only one moving part, namely the piston.
  • the suspension device according to the invention, according to a first embodiment, comprises a cylindrical body 1 closed at one end by a cover 21 provided with a first intake manifold 2 which is connected to a source of compressed air 22, as well as a second intake manifold 3 which is connected to a second source of compressed air 23.
  • a single source may alternatively be provided compressed air 22 or 23, connected to the two pipes 2 and 3 by a pipe 24, shown in dashes.
  • a piston 4 is slidably mounted inside the cylinder 1 on the side of the axial tube 2. It has the shape of a cylindrical cup open towards this tube, while O-rings 5 and 6 are interposed between the side wall of cylinder 4 and the inside of cylinder 1.
  • an axial nozzle 7 which is intended for the evacuation of the dispersed product and which passes through the planar front wall of the cylinder 1. Inside the latter, the nozzle 7 is extends outwards into a disc 8 which is perpendicular to it and the periphery of which is located a short distance from the internal face of the cylinder 1.
  • the compacted pulverulent product 9 to be dispersed being housed between the piston 4 and the disc 8, the compressed air which enters through the tube 3 in the cylinder 1 flows between the internal face of the cylindrical wall of the latter and the periphery of the disc 8 and, along the path indicated by the arrows F, it comes to lick and erode the free surface of the compacted powder bread 9.
  • This air thus charged with extremely fine powder particles passes through the nozzle 7 and disperses in the atmosphere.
  • the compressed air introduced into the cylinder 1 through the tubing 2 pushes the piston 4 in the direction of the arrow F ', which displaces the compacted powder roll, as the powder is evacuated. disperse, towards the outlet nozzle 7.
  • the device can consume the product 9 in the form of bread of powdered products previously compacted and introduced by removing the cover 21 from the storage tank 1, this recharging can be carried out by a single operator in a few seconds.
  • the speed of erosion of the powder 9 by the entraining gas must be greater than a floor value, the pressure drop in the peripheral passages having to be adjusted as a function the flow rate and the nature of the product to be dispersed.
  • the circulation of the powder and of the gas inside the reservoir 1 and around the discharge orifice 7 must be such that the speed of erosion of the powder remains permanently above this floor value.
  • the distance between the opposing surface formed by the disc 8 or by the front face of the piston 4 and the free surface of the powder is of the order of 0.2 to 0.04 mm, and the speed of the gas. charged with powder measured in the discharge orifice 7, is between 35 and 300 m / s.
  • the powder flow rate itself can vary to a very large extent by adjusting the pressure and / or adjusting the discharge means. It is thus possible to vary this flow rate between a few tens of grams per second and several kilograms per second.
  • the suspension formed can then be dispersed in the atmosphere at a high speed, for example 100 to 340 m / s, for air at 20 ° C.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Auxiliary Methods And Devices For Loading And Unloading (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Air Transport Of Granular Materials (AREA)

Claims (1)

  1. Verfahren zum Dispergieren eines Produktes in einem Fluid, in welchem man
    - das zu dispergierende Produkt in einem zylindrischen oder prismatischen Speicherbehälter (1) zwischen einem axial beweglichen Kolben (4) und einem Gegenstück (8) einschließt, weich letzteres eine axial gerichtete Austrittsdüse (7) aufweist,
    - auf die der Masse des Produkts (9) abgekehrte Seite des Kolbens (4) einen solchen Fluiddruck ausübt, der geeignet ist, um den Kolben und die Masse (9) des Produkts in Richtung auf das Gegenstück (8) hin zu bewegen,
    - das zum Dispergieren benutzte Fluid entlang einer solchen Strecke strömen läßt, die aus einem Eingangsabschnitt (3), einer Austrittsdüse (7) und einem Zwischenabschnitt besteht, in welchem das Fluid sich von dem Eingangsabschnitt (3) in Richtung auf die Austrittsdüse (7) hin bewegt, und zwar entlang der freien Oberfläche des Produkts, um dieses abzutragen und mitzunehmen, wobei der Zwischenabschnitt eine Gestaltung sowie Abmessungen aufweist, die genau konstant sind, da die Oberfläche der Masse des Produkts im Verhältnis zu dem Gegenstück (8) bewegt wird, um während des fortschreitenden, auf die Bewegung des Kolbens (4) zurückführbaren Mitnehmens des Produkts einen nahezu konstanten Abstand zwischen der freien Oberfläche der genannten Masse und dem Gegenstück aufrechtzuerhalten, dadurch gekennzeichnet
    - daß das Produkt ein ultrafeines, kompaktiertes Pulver ist und daß das zum Dispergieren benutzte Fluid ein Gas ist,
    - daß die Oberfläche des Gegenstücks (8) insgesamt senkrecht zur Achse des Speicherbehälters (1 ) und nahezu parallel zurfreien Oberfläche des Pulvers verläuft,
    - daß der auf den Kolben ausgeübte Fluiddruck in Abhängigkeit von der Orientierung und den auf den Speicherbehälter (1) einwirkenden Beschleunigungen angepaßt ist, und zwar derart, daß der Abstand zwischen der freien Oberfläche des Pulvers und der Oberfläche des Gegenstücks (8) nahezu konstant gehalten wird,
    - daß man den zum Überstreichen und Abtragen der Masse des Pulvers dienenden Gasdurchsatz bei einem Wert oberhalb eines Mindestwertes hält, und zwar derart, daß sich in der Masse keine Vorzugswege ergeben, welche ein beträchtliches Absinken des Pulverdurchsatzes mit sich bringen würden.
EP86901422A 1985-03-05 1986-03-03 Verfahren und anordnung zur dispersion ultrafeiner pulver Expired EP0214212B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86901422T ATE46631T1 (de) 1985-03-05 1986-03-03 Verfahren und anordnung zur dispersion ultrafeiner pulver.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8503196A FR2578451B1 (fr) 1985-03-05 1985-03-05 Procede et dispositif pour la dispersion de poudres ultra-fines
FR8503196 1985-03-05

Publications (2)

Publication Number Publication Date
EP0214212A1 EP0214212A1 (de) 1987-03-18
EP0214212B1 true EP0214212B1 (de) 1989-09-27

Family

ID=9316866

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86901422A Expired EP0214212B1 (de) 1985-03-05 1986-03-03 Verfahren und anordnung zur dispersion ultrafeiner pulver

Country Status (5)

Country Link
US (1) US4859121A (de)
EP (1) EP0214212B1 (de)
DE (1) DE3665822D1 (de)
FR (1) FR2578451B1 (de)
WO (1) WO1986005126A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8142509B2 (en) 2006-01-23 2012-03-27 Smith & Nephew, Inc. Patellar components

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1699879A1 (ru) * 1988-06-22 1991-12-23 Московский Геологоразведочный Институт Им.Серго Орджоникидзе Установка дл гидротранспорта твердых материалов
DE3902073A1 (de) * 1989-01-25 1990-07-26 Dynamit Nobel Ag Vorrichtung zur schnellen erzeugung grossflaechiger nebel
GB8903826D0 (en) * 1989-02-20 1989-04-05 Sandia Investments Sa Packages for liquids
US5114054A (en) * 1990-07-19 1992-05-19 Watson M Burnell Tank piston with teflon sheathed packing member
US5286451A (en) * 1990-11-23 1994-02-15 Her Majesty The Queen In Right Of Canada, As Represented By The Minister Of Energy Mines And Resources Apparatus for controlled delivery of particulate material
US5203507A (en) * 1990-12-11 1993-04-20 Matthews Richard H Air powered sprayer for dispensing material slurries
US5341726A (en) * 1993-03-31 1994-08-30 Watson M Burnell Piston for tank
GB2300371B (en) * 1995-05-05 1997-08-06 Andrew Ian Briggs Particulate dispenser
GB9509170D0 (en) * 1995-05-05 1995-06-28 Briggs Andrew I Particulate dispenser
KR100226990B1 (ko) * 1997-08-26 1999-10-15 김성년 유동화에 의한 분체의 미량, 정량 및 연속 공급 장치
US6206248B1 (en) 1999-04-16 2001-03-27 James L. Popp Dispensing piston for commodity container
US6454141B1 (en) * 2001-07-25 2002-09-24 Coulter International Corp. Non-pressurized dry powder dispensing apparatus
US6688494B2 (en) * 2001-12-20 2004-02-10 Cima Nanotech, Inc. Process for the manufacture of metal nanoparticle
FR2834480B1 (fr) 2002-01-10 2004-04-02 Bertin Technologies Sa Dispositif pour la dispersion de poudre
AU2009244603B2 (en) * 2008-05-06 2013-10-31 Graco Minnesota Inc. Cleaning fluid cartridge
DE102010025740A1 (de) * 2010-06-30 2012-01-05 Illinois Tool Works Inc. Pulverversorgungssvorrichtung und Verfahren zum automatischen Reinigen einer Pulverversorgungseinrichtung
CN102390720B (zh) * 2011-05-23 2013-10-30 华中科技大学 一种流化态连续微量给料装置
WO2014054583A1 (ja) * 2012-10-01 2014-04-10 武蔵エンジニアリング株式会社 ディスペンサー用プランジャー、ディスペンサーおよび液体材料の吐出方法
US20220177295A1 (en) * 2020-01-10 2022-06-09 Daniel McNicholas Vapor displacement refueling including refueling in zero gravity

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA874283A (en) * 1971-06-29 K. Bullivant Walter Pneumatic powder feeder and aerosolizer
US4023778A (en) * 1974-05-31 1977-05-17 Sogemaric Device for mixing chemical products with tap water

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781154A (en) * 1955-12-23 1957-02-12 North American Aviation Inc Metallic powder projector
US3854634A (en) * 1974-01-02 1974-12-17 Commercial Resins Co Powder dispenser
AT340716B (de) * 1974-06-18 1977-12-27 Vmw Ranshofen Berndorf Ag Wasserdruck-spritzgerat
US4497598A (en) * 1982-11-19 1985-02-05 Chevron Research Company Method and apparatus for controlled rate feeding of fluidized solids
SU1224227A1 (ru) * 1984-05-30 1986-04-15 Казахский политехнический институт им.В.И.Ленина Камерный питатель пневмотранспортной установки
SU1206212A1 (ru) * 1984-07-23 1986-01-23 Институт химии твердого тела и переработки минерального сырья СО АН СССР Дозирующее устройство порошково-газовой смеси

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA874283A (en) * 1971-06-29 K. Bullivant Walter Pneumatic powder feeder and aerosolizer
US4023778A (en) * 1974-05-31 1977-05-17 Sogemaric Device for mixing chemical products with tap water

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8142509B2 (en) 2006-01-23 2012-03-27 Smith & Nephew, Inc. Patellar components

Also Published As

Publication number Publication date
EP0214212A1 (de) 1987-03-18
FR2578451B1 (fr) 1988-08-26
US4859121A (en) 1989-08-22
FR2578451A1 (fr) 1986-09-12
DE3665822D1 (en) 1989-11-02
WO1986005126A1 (fr) 1986-09-12

Similar Documents

Publication Publication Date Title
EP0214212B1 (de) Verfahren und anordnung zur dispersion ultrafeiner pulver
EP0215015B1 (de) Anlage zum schleudern von trockeneisteilchen
FR2562077A1 (fr) Dispositif et procede d'introduction d'une poudre a activite catalytique dans un reacteur de polymerisation a lit fluidise
EP0493279B1 (de) Vorrichtung zum Trennen eines fluidisierten Materiales und zum Detektieren von Verstopfungen
FR2858972A1 (fr) Dispositif pour le transport de particules solides granulaires avec un debit controle
EP3224159B1 (de) Pulvertransfervorrichtung mit verbessertem fluss
CH626587A5 (de)
EP0125198A1 (de) Vorrichtung zur Beschleunigung fester Teilchen
FR2581324A1 (fr) Dispositif permettant la projection a debit regulier de produits pulverulents de granulometrie tres fine et ses differentes applications notamment pour les produits abrasifs
FR2459188A1 (fr) Dispositif d'aeration par decharge brusque d'air comprime
FR2705591A1 (fr) Procédé et dispositif d'alimentation d'une installation de projection de produit pulvérulent.
EP0797752A1 (de) Kälte-verfahren und -vorrichtung
FR2550957A1 (fr) Dispositif d'alimentation de particules comportant une alimentation de reserve
EP0953410A1 (de) Verfahren und Vorrichtung zum Reinigen durch Strahlen von Teilchen
EP0094307B1 (de) Strahlmühlen
EP1754040B1 (de) Verfahren und vorrichtung zum dispergieren von trockenpulvern
EP0455686A1 (de) Zufuhrvorrichtung für teilchenmaterial
EP0760713B1 (de) Vorrichtung und verfahren zum trennen und qualifizieren von teilchen, welche ein körniges produkt bilden
WO1995021026A1 (fr) Procede et dispositif de distribution d'un melange d'air comprime et de poudre
EP2174891A1 (de) Vorrichtung zum Verflüssigen von körnigen Stoffen, Behälter mit einer solchen Vorrichtung, Verfahren zur Aufbewahrung von körnigen Stoffen und Verfahren zum Verflüssigen von körnigen Stoffen in einem Behälter
FR2674775A1 (fr) Dispositif pour le depot de produits pateux a debit regule ou a pression regulee a l'aide d'un moteur asservi en vitesse.
EP0091353B1 (de) Verfahren und Vorrichtung zum Heben von und zur Verwirklichung von Wärmeaustausch für pulverförmiges Material mit einer breiten granulometrischen Verteilung
FR2829044A1 (fr) Procede d'alimentation et de dosage pour des materiaux pulverulents avec insufflation d'air dans la tuyauterie
FR2765126A1 (fr) Procede de coulee de metal liquide dans un conduit comprenant au moins deux pieces refractaires
FR2670701A1 (fr) Dispositif de controle de la teneur en particules solides d'un liquide charge et installation d'ebavurage faisant application.

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

17P Request for examination filed

Effective date: 19861017

AK Designated contracting states

Kind code of ref document: A1

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

RIN1 Information on inventor provided before grant (corrected)

Inventor name: BLONDEAU, MICHEL 68, RUE DU PETIT BOIS

Inventor name: MALGRAT, PHILIPPE

Inventor name: KARIAN, JACQUES RESIDENCE DE LA RONCHE

Inventor name: DEYSSON, JEAN-YVES

17Q First examination report despatched

Effective date: 19870917

17Q First examination report despatched

Effective date: 19880506

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 FR GB IT LI LU NL SE

REF Corresponds to:

Ref document number: 46631

Country of ref document: AT

Date of ref document: 19891015

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)
REF Corresponds to:

Ref document number: 3665822

Country of ref document: DE

Date of ref document: 19891102

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
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
ITTA It: last paid annual fee
EPTA Lu: last paid annual fee
EAL Se: european patent in force in sweden

Ref document number: 86901422.5

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

REG Reference to a national code

Ref country code: FR

Ref legal event code: TP

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

Ref country code: SE

Payment date: 20030224

Year of fee payment: 18

Ref country code: LU

Payment date: 20030224

Year of fee payment: 18

Ref country code: AT

Payment date: 20030224

Year of fee payment: 18

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

Ref country code: GB

Payment date: 20030225

Year of fee payment: 18

Ref country code: CH

Payment date: 20030225

Year of fee payment: 18

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

Ref country code: BE

Payment date: 20030227

Year of fee payment: 18

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

Ref country code: NL

Payment date: 20030306

Year of fee payment: 18

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

Ref country code: DE

Payment date: 20030314

Year of fee payment: 18

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: 20040303

Ref country code: GB

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

Effective date: 20040303

Ref country code: AT

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

Effective date: 20040303

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: 20040304

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

Ref country code: FR

Payment date: 20040326

Year of fee payment: 19

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: 20040331

Ref country code: CH

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

Effective date: 20040331

Ref country code: BE

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

Effective date: 20040331

BERE Be: lapsed

Owner name: *BERTIN & CIE

Effective date: 20040331

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: 20041001

Ref country code: DE

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

Effective date: 20041001

GBPC Gb: european patent ceased through non-payment of renewal fee
EUG Se: european patent has lapsed
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: 20041001

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: 20050303

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: 20051130

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20051130