EP0135484B1 - Générateurs de vapeur à utilisation avec des appareils ménagers comme un fer à repasser à vapeur - Google Patents

Générateurs de vapeur à utilisation avec des appareils ménagers comme un fer à repasser à vapeur Download PDF

Info

Publication number
EP0135484B1
EP0135484B1 EP19840830216 EP84830216A EP0135484B1 EP 0135484 B1 EP0135484 B1 EP 0135484B1 EP 19840830216 EP19840830216 EP 19840830216 EP 84830216 A EP84830216 A EP 84830216A EP 0135484 B1 EP0135484 B1 EP 0135484B1
Authority
EP
European Patent Office
Prior art keywords
steam
chamber
steam generator
nozzle
iron
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
EP19840830216
Other languages
German (de)
English (en)
Other versions
EP0135484A2 (fr
EP0135484A3 (en
Inventor
Costantino Ronchi
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.)
ELWATT S.R.L.
Original Assignee
ELWATT Srl
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
Priority claimed from IT22102/83A external-priority patent/IT1163794B/it
Priority claimed from IT8323194A external-priority patent/IT8323194A0/it
Priority claimed from IT2318483U external-priority patent/IT8323184V0/it
Application filed by ELWATT Srl filed Critical ELWATT Srl
Priority to AT84830216T priority Critical patent/ATE39562T1/de
Publication of EP0135484A2 publication Critical patent/EP0135484A2/fr
Publication of EP0135484A3 publication Critical patent/EP0135484A3/en
Application granted granted Critical
Publication of EP0135484B1 publication Critical patent/EP0135484B1/fr
Expired legal-status Critical Current

Links

Images

Classifications

    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F75/00Hand irons
    • D06F75/08Hand irons internally heated by electricity
    • D06F75/10Hand irons internally heated by electricity with means for supplying steam to the article being ironed
    • D06F75/12Hand irons internally heated by electricity with means for supplying steam to the article being ironed the steam being produced from water supplied to the iron from an external source
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/28Methods of steam generation characterised by form of heating method in boilers heated electrically
    • F22B1/287Methods of steam generation characterised by form of heating method in boilers heated electrically with water in sprays or in films

Definitions

  • Combination of steam iron and steam generator are per se known such as, for example, of the type in which a reciprocating membrane pump pumps water from a water container and to a steam generatorfrom which steam is supplied to a steam iron under the control of a push button provided in the iron handle
  • the reciprocating membrane pump is connected to an inlet pipe and an outlet pipe, each provided of a non-return valve.
  • a first drawback of the known combination resides in the calcareous deposits that render the steam iron inefficient after a very short period of time.
  • a second drawback of such known very expensive and not operative combination is that it is not a compact construction.
  • a third drawback of such known combination resides in the fact that the operator must press the control push button with a high frequency since the steam generator has no thermic inertia.
  • US-A-2 606 272 discloses a vapor generator in which a pump feeds water from a water reservoir to a heating unit; the heating unit comprises a metallic block heated by electric resistors. This vapor generator is not suitable for domestic use and no provisions are made to prevent calcium deposits. Cleaning operations and general maintenance must be performed by specialists and would be expensive and time consuming.
  • FR-A-2 306 400 discloses a vaporization chamber with front and rear opening of expensive construction, which does not solve adequately the cleaning and decalcification problems.
  • the task of this invention is to provide a reliable, efficient, durable steam generator which is suitable also for domestic appliances and in which provisions are made to prevent calcium deposits and to facilitate cleaning operations and general maintenance.
  • the invention provides a support frame FR made of metallic sheet or of plastics material supporting a steam generator SB, an electrical vibration piston pump PU, and a water reservoir CO.
  • a cover or closure KO is provided having an opening AP to provide access to the water inlet opening /A of the water reservoir CO.
  • the cover KO may be fixed to the support frame FR with screws and the frame has an up-standing side flange PR with a carrying handle MA.
  • the cover has an aperture which receives a switch SW associated with a warning lamp WL.
  • the piston pump PU is supported by two spaced rubber flanges FL 1-F L which absorb the pump vibrations.
  • a container CN is partially charged with known resin RS and has an upper aperture UA and a lower aperture LA, the latter cooperating with the inlet opening IA of the water reservoir.
  • UA and LA are designed respectively to receive stoppers SR 1 -ST 2 and the exchange resin container is of the disposable kind.
  • the resin layer RS is confined between two spongy layers SR 1 -S7 2 , leaving an upper cavity CV so that the resin container CN operates as illustrated as a funnel.
  • a rubber stopper SR closes the water inlet as shown in dotted lines in Figure 3.
  • the steam generator SB has a steam chamber CA and comprises a metallic body BL incorporating an electric heating resistor RE associated with a thermostat TH.
  • a threaded bushing TB is fixed to the outlet of the cylindrical steam chamber having an internal threaded portion which receives an outlet steam nipple ON.
  • the latter is hollow and machined with a set of holes and presents an inside threaded portion TR cooperating with a screw SC that presents a longitudinal hole HL.
  • a steam hose SH may be secured with a band BN in known manner.
  • the nipple ON may be unscrewed and removed to give access to steam chamber CA for cleaning with a brush (non represented).
  • a "teflon" insulating sleeve is provided for the protection of the steam hose SH.
  • the steam generator SB comprises a metallic block BL embodying a heating resistor RE.
  • the inlet water duct has been shown at Wand is close to the water outlet OU from the pump to which it is connected by a teflon duct TD as shown.
  • An insulating layer LY covers the metallic block BL, and the layer LY and the block BL are surrounded by metallic housing HO as shown. In this way the invention provides a steam generator that has a very high thermal inertia.
  • the heating resistor RE produces steam from the water injected into the steam chamber if the pump is energized. This is rendered possible by activating the switch push button PP provided in the iron handle HA.
  • the warning lamp is not energized. If the temperature in the steam generator chamber is too high the thermostat disconnects the heating resistor from the electrical supply and the warning lamp is energized. Namely the lamp is energized as soon as the thermostat opens.
  • the resin container operating as funnel may be used, as already stated (see II).
  • the calciferous deposits may be removed from the steam outlet nipple e.g. ON or from the steam generator chamber CA as stated (see II).
  • FU shows a fuse and RY the electrical resistor of the steam iron combination.
  • the electrodomestic appliance such as a steam iron may be disconnected and the steam generator may be used alternatively for a steam floor washing apparatus SA, a coffee machine CM or an electric steam brush VB and so like.
  • the steam generator may be used alternatively for a steam floor washing apparatus SA, a coffee machine CM or an electric steam brush VB and so like.
  • This is permitted thanks to the provision of a quadripolar plug QP and a quadripolar socket AT which latter is fixed to the flanged portion PR.

Landscapes

  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (5)

1. Générateur de vapeur (SB) utilisable dans des appareils électro-ménagers, tels qu'un fer à repasser à vapeur, comprenant un bloc métallique (BL) en un matériau ayant une inertie thermique élevée , comportant des résistances de chauffage (RE) et une chambre de vaporisation (CA), des moyens formant thermostat (TH), coopérant avec une lampe d'alarme (WL), étant reliés en série auxdites résistances de chauffage (RE), ledit gégérateur de vapeur étant relié à un réservoir d'eau (CO), au moyen d'une pompe électrique à vibrations (PU), pour fournir de l'eau à ladite chambre, et à un appareil tel qu'un fer à vapeur (IR), ledit générateur de vapeur comprenant de plus une sortie de vapeur filetée à laquelle est appliquée une buse (ON), ladite buse étant associée, de façon amovible, à ladite chambre de vaporisation et adaptée pour permettre l'accès à ladite chambre dans un but de nettoyage, caractérisé en ce que ladite buse (ON) comprend une partie creuse reliée d'un côté à ladite chambre au moyen d'un jeu de trous agencés radialement (FX) et du côté opposé reliée à un tuyau (SH), ladite partie creuse de ladite buse faisant saillie dans ladite chambre (CA), ladite buse ayant également un filetage interne (TR) engageant une vis (SC) munie d'un trou calibré (LH) pour délivrer de la vapeur à une pression élevée appropriée, ladite vis étant retirable pour permettre le nettoyage de ladite buse, ladite partie creuse de ladite buse ayant, sur son côté adjacent à ladite chambre, une extrémité plate fermée définissant, en même temps que les parois internes de ladite chambre, un passage de laminage annulaire adapté pour réduire les dépôts de calcium.
2. Générateur de vapeur selon la revendication 1, dans lequel ladite chambre de vaporisation (CA) est reliée à ladite pompe électrique à vibrations (PU) au moyen d'un raccord (IW) ayant un diamètre interne relativement grand, situé sur le côté de ladite chambre opposé à ladite buse.
3. Générateur.de vapeur selon la revendication 1, dans lequel ladite pompe électrique à vibration (PU) est activée par un commutateur (PP) associé audit appareil.
4. Générateur de vapeur selon les revendications 1 et 3, dans lequel ledit générateur de vapeur, ledit réservoir d'eau et ladite pompe à vibration sont associés à un élément de base (FR) et à un élément formant couvercle (KO), ledit élément formant couvercle étant adapté pour jouer le role d'un organe de support pour un appareil, tel qu'un fer à repasser à vapeur.
5. Générateur de vapeur selon la revendication 1, dans lequel lesdites résistances de chauffage (RE) sont agencées dans ledit bloc métallique (BL) pendant l'étape de moulage.
EP19840830216 1983-07-18 1984-07-16 Générateurs de vapeur à utilisation avec des appareils ménagers comme un fer à repasser à vapeur Expired EP0135484B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84830216T ATE39562T1 (de) 1983-07-18 1984-07-16 Dampferzeuger zum gebrauch bei haushaltsgeraeten, wie etwa dampfbuegeleisen.

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
IT2210283 1983-07-18
IT22102/83A IT1163794B (it) 1983-07-18 1983-07-18 Generatore di vapore istantaneo in particolare per apparecchi elettrodomestici, quali, apparecchi per lavare a vapore apparecchi per stirare, per disinfettare a vapore, per lavare piatti.
IT2319483 1983-10-07
IT8323194A IT8323194A0 (it) 1983-10-07 1983-10-07 Generatore istantaneo di vapore in particolare per elettrodomestici quali ferri da stiro, lavapavimenti e simili.
IT2318483U 1983-10-07
IT2318483U IT8323184V0 (it) 1983-10-07 1983-10-07 Caldaietta monolitica di metallo provvista di un foro di vaporizzazione dell'acqua e di un foro passante per una resistenza di riscaldamento.

Publications (3)

Publication Number Publication Date
EP0135484A2 EP0135484A2 (fr) 1985-03-27
EP0135484A3 EP0135484A3 (en) 1985-06-05
EP0135484B1 true EP0135484B1 (fr) 1988-12-28

Family

ID=27273248

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840830216 Expired EP0135484B1 (fr) 1983-07-18 1984-07-16 Générateurs de vapeur à utilisation avec des appareils ménagers comme un fer à repasser à vapeur

Country Status (2)

Country Link
EP (1) EP0135484B1 (fr)
DE (1) DE3475826D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
WO2013011475A3 (fr) * 2011-07-19 2014-03-06 Koninklijke Philips N.V. Appareil ménager comprenant un actionneur
WO2013011473A3 (fr) * 2011-07-19 2014-03-06 Koninklijke Philips N.V. Appareil ménager comprenant un actionneur

Families Citing this family (30)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2158210A (en) * 1984-03-21 1985-11-06 Christopher James Nutt Vapour generator
FR2582028A1 (fr) * 1985-05-20 1986-11-21 Brenot Claude Appareil de repassage a evaporation directe
ATE132551T1 (de) * 1990-01-17 1996-01-15 Metalnova Di Dario Pietro E Ma Dampfbügeleisen
DE4203414A1 (de) * 1992-02-06 1993-08-12 Braun Ag Dampfbuegeleisen mit austauschbarem filtereinsatz
FR2688013B1 (fr) * 1992-02-28 1995-11-10 Moulinex Sa Centrales de repassage a vapeur comprenant un fer a repasser.
FR2695660B1 (fr) * 1992-09-16 1995-11-10 Moulinex Sa Dispositif de connexion d'une cassette demineralisation montee sur un dispositif de repassage a vapeur.
DE4301350C1 (de) * 1993-01-20 1993-12-02 Pfaff Ag G M Bügelmaschine mit einer Einrichtung zum Befeuchten des Bügelgutes
DE19505342C1 (de) * 1995-02-17 1996-04-18 Kaercher Gmbh & Co Alfred Kombiniertes Dampfreinigungs- und Dampfbügelgerät
IT1295732B1 (it) * 1997-08-04 1999-05-27 Vetrella Spa Coperchio per ferro da stiro a vapore con serbatoio esterno
FR2889211B3 (fr) * 2005-07-26 2007-09-07 Seb Sa Appareil de repassage comportant un dispositif de commutation permettant d'alimenter selectivement en vapeur et en electricite differents accessoires
US7765628B2 (en) 2006-06-09 2010-08-03 Whirlpool Corporation Steam washing machine operation method having a dual speed spin pre-wash
US7730568B2 (en) 2006-06-09 2010-06-08 Whirlpool Corporation Removal of scale and sludge in a steam generator of a fabric treatment appliance
US7941885B2 (en) 2006-06-09 2011-05-17 Whirlpool Corporation Steam washing machine operation method having dry spin pre-wash
US7841219B2 (en) 2006-08-15 2010-11-30 Whirlpool Corporation Fabric treating appliance utilizing steam
US7886392B2 (en) 2006-08-15 2011-02-15 Whirlpool Corporation Method of sanitizing a fabric load with steam in a fabric treatment appliance
US7665332B2 (en) 2006-08-15 2010-02-23 Whirlpool Corporation Steam fabric treatment appliance with exhaust
US7681418B2 (en) 2006-08-15 2010-03-23 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance using a temperature sensor
US7707859B2 (en) 2006-08-15 2010-05-04 Whirlpool Corporation Water supply control for a steam generator of a fabric treatment appliance
WO2008025189A1 (fr) * 2006-08-24 2008-03-06 Tuming You Procédé et dispositif destinés à générer un agent nettoyant et de la vapeur sous pression, et fer à repasser doté de ce dispositif
US7861343B2 (en) 2007-08-31 2011-01-04 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US8555675B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
US8037565B2 (en) 2007-08-31 2011-10-18 Whirlpool Corporation Method for detecting abnormality in a fabric treatment appliance having a steam generator
US7966683B2 (en) 2007-08-31 2011-06-28 Whirlpool Corporation Method for operating a steam generator in a fabric treatment appliance
US7905119B2 (en) 2007-08-31 2011-03-15 Whirlpool Corporation Fabric treatment appliance with steam generator having a variable thermal output
US7918109B2 (en) 2007-08-31 2011-04-05 Whirlpool Corporation Fabric Treatment appliance with steam generator having a variable thermal output
US7690062B2 (en) 2007-08-31 2010-04-06 Whirlpool Corporation Method for cleaning a steam generator
US8555676B2 (en) 2007-08-31 2013-10-15 Whirlpool Corporation Fabric treatment appliance with steam backflow device
IT1394157B1 (it) * 2009-05-08 2012-05-25 De Longhi Appliances Srl Dispositivo per la rigenerazione di un gruppo decalcificatore dell'acqua in apparecchiature stiranti, relativo gruppo decalcificatore ed apparecchiatura stirante comprendente tale gruppo
FR2974121B1 (fr) 2011-04-14 2013-04-26 Seb Sa Appareil electromenager de repassage comportant un boitier comprenant un reservoir et une pompe alimentee en liquide par le reservoir
AU2013257986B2 (en) * 2012-05-10 2017-04-13 De' Longhi Appliances S.R.L. Divisione Commerciale Ariete Ironing system with separable iron and machine body

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE413218A (fr) * 1936-01-09 1900-01-01
US2145287A (en) * 1936-03-31 1939-01-31 Electric Steam Sterilizing Com Electric steam generator
US2606272A (en) * 1950-08-31 1952-08-05 Franklin M Platt Vapor generator for form fitters and other apparatus
FR1113576A (fr) * 1954-11-19 1956-03-30 Générateur électrique de vapeur sous pression
GB1022697A (en) * 1963-11-13 1966-03-16 Morphy Richards Cray Ltd Improvements in or relating to portable appliances for example, steam irons adapted for the heating of water
DE1628499A1 (de) * 1967-04-24 1971-03-18 Walter Becker Dampfreinigungsgeraet
US3436852A (en) * 1967-06-12 1969-04-08 Burton J Stansbury Steam generator and steam iron combination
BE511365A (fr) * 1970-05-13
JPS51117205A (en) * 1975-04-04 1976-10-15 Strobel & Soehne Gmbh & Co J Steam generating machine
DE2900344C2 (de) * 1978-01-06 1986-09-25 Waters Associates, Inc., Milford, Mass. Chromatographiesäule

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7753009B2 (en) 2006-10-19 2010-07-13 Whirlpool Corporation Washer with bio prevention cycle
US8393183B2 (en) 2007-05-07 2013-03-12 Whirlpool Corporation Fabric treatment appliance control panel and associated steam operations
WO2013011475A3 (fr) * 2011-07-19 2014-03-06 Koninklijke Philips N.V. Appareil ménager comprenant un actionneur
WO2013011473A3 (fr) * 2011-07-19 2014-03-06 Koninklijke Philips N.V. Appareil ménager comprenant un actionneur
RU2597537C2 (ru) * 2011-07-19 2016-09-10 Конинклейке Филипс Н.В. Бытовое электрическое устройство, содержащее исполнительный механизм

Also Published As

Publication number Publication date
EP0135484A2 (fr) 1985-03-27
EP0135484A3 (en) 1985-06-05
DE3475826D1 (en) 1989-02-02

Similar Documents

Publication Publication Date Title
EP0135484B1 (fr) Générateurs de vapeur à utilisation avec des appareils ménagers comme un fer à repasser à vapeur
US4207683A (en) Clothes dryer
AU608092B2 (en) Method and apparatus for treatment of fabrics in laundry
US6031969A (en) Omnidirectional portable appliance for steam cleaning hard or flexible surfaces
GB2309071A (en) Steam generator
EP0842631B1 (fr) Dispositif de nettoyage à vapeur
US20060191299A1 (en) Garment steamer
EP0672377B1 (fr) Appareil ménager de nettoyage à vapeur
US5832639A (en) Portable garment finishing appliance
US3130507A (en) Steam and dampening iron
CN101263255A (zh) 具有连接于熨斗和熨平刷的蒸汽发生器的熨烫器具
US2506941A (en) Steam iron
KR20000010493A (ko) 업무용 다리미 및 스팀브러시_
GB2308135A (en) Steam treating garments:water supply
US5430963A (en) Iron including pressurizing and emitting steam chambers and remote reservoir
US2878360A (en) Portable steam guns and steam-superheating apparatus therefor
US2557732A (en) Water supply means for steam iron steam generators
US2441916A (en) Steam separator for steam irons
US3852899A (en) Commercial steam generating hand iron
US2456490A (en) Steam-press iron and steam baffle and separator therefor
KR950012993B1 (ko) 진공청소기의 스팀 분사 흡입구
KR100945264B1 (ko) 테이블세척기
CN211395096U (zh) 一种可以快速出蒸汽的熨烫机
US2864186A (en) Steam iron and support
US2768455A (en) Steam irons

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

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

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

17P Request for examination filed

Effective date: 19850604

17Q First examination report despatched

Effective date: 19860320

D17Q First examination report despatched (deleted)
RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: ELWATT S.R.L.

D17Q First examination report despatched (deleted)
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 LI LU NL SE

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

Ref country code: SE

Effective date: 19881228

Ref country code: NL

Effective date: 19881228

Ref country code: BE

Effective date: 19881228

Ref country code: AT

Effective date: 19881228

REF Corresponds to:

Ref document number: 39562

Country of ref document: AT

Date of ref document: 19890115

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3475826

Country of ref document: DE

Date of ref document: 19890202

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
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: GB

Payment date: 19910716

Year of fee payment: 8

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

Ref country code: LU

Payment date: 19910717

Year of fee payment: 8

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

Ref country code: FR

Payment date: 19910729

Year of fee payment: 8

Ref country code: CH

Payment date: 19910729

Year of fee payment: 8

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

Ref country code: DE

Payment date: 19910823

Year of fee payment: 8

EPTA Lu: last paid annual fee
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: 19920716

Ref country code: GB

Effective date: 19920716

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

Ref country code: LI

Effective date: 19920731

Ref country code: CH

Effective date: 19920731

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

Effective date: 19920716

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

Ref country code: FR

Effective date: 19930331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

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

Ref country code: DE

Effective date: 19930401

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST