EP0065497A1 - Inflammable gas detector device - Google Patents
Inflammable gas detector device Download PDFInfo
- Publication number
- EP0065497A1 EP0065497A1 EP82830111A EP82830111A EP0065497A1 EP 0065497 A1 EP0065497 A1 EP 0065497A1 EP 82830111 A EP82830111 A EP 82830111A EP 82830111 A EP82830111 A EP 82830111A EP 0065497 A1 EP0065497 A1 EP 0065497A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- detector
- flammable gas
- gas detector
- circuit
- bridge circuit
- 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
Links
Images
Classifications
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/117—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means by using a detection device for specific gases, e.g. combustion products, produced by the fire
Definitions
- the invention relates to a flammable gas detector.
- the object of the present invention is to propose a particularly advantageous prevention device for installations which use flammable gases in closed environments.
- the invention solves the problem of detecting the presence of flammable gas in dangerous quantity and, at the same time, controlling the operation or intervention of a device for alarm or emergence, with a detector element inserted in a branch of a circuit with bridge of re sistances which detector, in the presence of gas in quantity in percentage greater than the prefixed limit, determines, in said circuit with resistance bridge, a degree of imbalance which produces an electrical voltage signal to be used to control electronically a tear device or remote signaling or intervention.
- FIG. 1 shows the functional block diagram of a flammable gas detection device according to the invention
- Fig. 2 shows the diagram relating to the circuit.
- the mains power supply (A) uses, to obtain higher stability, a transistor (T1), a Zeener diode (Z1) and an integrated circuit (Ic1).
- the bridge circuit (PM) is formed by two resistors (Ces) (R2) and (R4), a variable resistor (R3) and the detector (R) mentioned above; two of the vertices of the bridge are connected to the input terminals (2-3) of a differential amplifier (Ad) whose output (6) is transferred to the terminal (4) of an integrated circuit (Ic2) of the 'note oscillator (G) which functions as a generator of low frequency oscillations; in addition, the output (3) of said integrated circuit (Ic2) is connected, by a capacitor (C8) and a resistor (R7) in series, to the above-mentioned electro-acoustic device (TA).
- TA electro-acoustic device
- an auxiliary power supply section comprising: a buffer battery with its relative automatic recharging circuit, a device for signaling a power interruption and failure the battery as well as a timer circuit (Tp) which activates the auxiliary power section with an intermittence which can be adjusted as desired.
- This operating condition is maintained throughout the time that the sensor (R) continues to detect a percentage of gas greater than that prefixed, this percentage is preset at will by varying the intervention threshold obtained by acting, through of the potentiometer (R3); on the balance state of the bridge.
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Emergency Alarm Devices (AREA)
- Control Of Combustion (AREA)
Abstract
Description
L'invention concerne un appareil détecteur de gaz inflammable.The invention relates to a flammable gas detector.
Dans le cas d'emploi industriel et domestique de gaz combustibles, on sait qu'avoir un haut degré de sécurité lors du fonctionnement des installations, représente un problème technique d'aspect prioritaire étant nécessaire de réduire au minimum toutes les possibilités de fuite de gaz et par conséquent, d'incendies ou de dégâts aux choses et/ou personnes, vu qu'en général les gaz inflammables sont hautement toxiques.In the case of industrial and domestic use of combustible gases, it is known that having a high degree of safety during the operation of the installations, represents a technical problem of priority aspect being necessary to minimize all the possibilities of gas leakage and consequently, fires or damage to things and / or people, since in general flammable gases are highly toxic.
La présente invention a pour bout de proposer un appareil de prévention particulieurement avantageux pour les installations qui utilisent les gaz inflammables dans des milieux fermés.The object of the present invention is to propose a particularly advantageous prevention device for installations which use flammable gases in closed environments.
L'invention, telle qu'elle est caractérisée dans les revendications, résout le problème consistant a déceler la présence de gaz inflammable en quan - tité dangereuse et, en même temps, de contrôler le fonctionnement ou l'intervention d'un dispositif d'allarme ou d'émergence, avec un élément détecteur inséré dans une branche d'un circuit à pont de résistances lequel détecteur, en présence de gaz en quantité en pourcentage superieure à la limite prefixée, détermine, dans ledit circuit à pont de résistances, un degré de déséquilibre qui produit un signal de tension électrique à utiliser pour commander électroniquement un dispositif d'al larme ou de télésignalisation ou d'intervention. Les avantages obtenus grâce à cette invention consistent essentiellement en ceci qu'on obtient une sensibilité élevée et un grand degré de fiabilité; que lesdites qualités sont durables dans le temps; qu'on peut varier le seuil d'intervention du détecteur et ainsi augmenter la sensibilité; que le fonctionnement électronique possède une réponse immédiate et une grande flexibilité d'emploi. L'invention est exposée ci-après plus en détail à l'aide des dessins annexés représentant schématiquement une forme préférentielle de réalisation, donnée uniquement à titre de démostration pratique et ne deaant pas être prise dans un sens restreint ou: la Fig. 1 représente le bloc-diagramme fonctionnel d'un appareil détecteur de gaz inflammable conformément à l'invention; la Fig. 2 en représente le schéma relatif au circuit.The invention, as characterized in the claims, solves the problem of detecting the presence of flammable gas in dangerous quantity and, at the same time, controlling the operation or intervention of a device for alarm or emergence, with a detector element inserted in a branch of a circuit with bridge of re sistances which detector, in the presence of gas in quantity in percentage greater than the prefixed limit, determines, in said circuit with resistance bridge, a degree of imbalance which produces an electrical voltage signal to be used to control electronically a tear device or remote signaling or intervention. The advantages obtained thanks to this invention consist essentially in that a high sensitivity and a high degree of reliability are obtained; that the said qualities are durable over time; that the intervention threshold of the detector can be varied and thus increase the sensitivity; that electronic operation has an immediate response and great flexibility of use. The invention is set out below in more detail with the aid of the appended drawings schematically showing a preferred embodiment, given solely by way of practical demonstration and which should not be taken in a restricted sense or: FIG. 1 shows the functional block diagram of a flammable gas detection device according to the invention; Fig. 2 shows the diagram relating to the circuit.
déduite à sa structure essentielle et par référence aux dessins en annexe, l'invention est formée par:
- - une section d'alimentation comprenant un alimenta- teur de secteur (A) muni d'un transformateur à pont de redressement, stabilisé de façon opportune à l'aide de circuits électroniques connus;
- - un circuit à pont de résistance (PM) dont une branche est composée par un élément détecteur (R) de gaz, lui-même formé par une spirale d'un mince fil d'alliage platineux, contenue de façon oppor tune dans une cage de fin grillage métallique (du type Davy) afin d'interdire la propagation de la flamme en cas d'inflammation du gaz autour de la spirale;
- - des moyens éventuels d'aspination et d'acheminent (As) de l'air environnant à contrôler, comprenant une pompe aspirante et des conduits de canalisaton ayant pour but d'augmenter la sensibilité du dit élément détecteur (R);
- - un oscillateur de note (G) et un transducteur électro-acoustique (TA) montés en cascade.
- - a power supply section comprising a power supply unit (A) provided with a rectifier bridge transformer, stabilized in a timely manner using known electronic circuits;
- - a resistance bridge circuit (PM) including one branch che is composed by a gas detector element (R), itself formed by a spiral of a thin platinum alloy wire, contained in a timely manner in a fine wire mesh cage (of the Davy type) in order to prohibit the propagation of the flame in the event of ignition of the gas around the spiral;
- - possible means of aspiration and convey (As) of the surrounding air to be controlled, comprising a suction pump and ducting conduits intended to increase the sensitivity of said detector element (R);
- - a note oscillator (G) and an electro-acoustic transducer (TA) connected in cascade.
De façon plus détaillée et conformément à la forme préférentielle de réalisation, l'alimentateur de secteur (A) se sert, pour obtenir une stabilité plus élevée, d'un transistor (T1),d'une diode Zeener (Z1) et d'un circuit intégré (Ic1).In more detail and in accordance with the preferred embodiment, the mains power supply (A) uses, to obtain higher stability, a transistor (T1), a Zeener diode (Z1) and an integrated circuit (Ic1).
Le circuit à pont (PM) est formé par deux résistan_ cesfixes (R2) et (R4), d'une résistance variable (R3) et du détecteur (R) susmentionné; deux des sommets du pont sont connectés aux bornes (2-3) d'entrée d'un amplificateur différentiel (Ad) dont la sortie (6) est reportée à la borne (4) d'un cir cuit integré (Ic2) de l'oscillateur de note (G) qui fonctionne comme un générateur d'oscillations de basse fréquence; de plus, la sortie (3) du dit circuit intégré (Ic2) est connectée, par un conden sateur (C8) et une résistance (R7) en série, au dispositif électro-acoustique (TA) susmetionné. Afin d'éviter le défaut de fonctionnement de l'ap pareil en cas d'interruption de courant, on a prévu une section d'alimentation auxiliaire (A') comprenant: une batterie montée en tampon avec son circuit relatif de recharge automatique, un dispositif de signalisation d'interruption de courant et de panne de la batterie amnsi qu'un circuit temporisateur (Tp) qui pourvoit à activer la section d'alimentation auxiliaire avec une intermittence que l'on peut régler à volonté.The bridge circuit (PM) is formed by two resistors (Ces) (R2) and (R4), a variable resistor (R3) and the detector (R) mentioned above; two of the vertices of the bridge are connected to the input terminals (2-3) of a differential amplifier (Ad) whose output (6) is transferred to the terminal (4) of an integrated circuit (Ic2) of the 'note oscillator (G) which functions as a generator of low frequency oscillations; in addition, the output (3) of said integrated circuit (Ic2) is connected, by a capacitor (C8) and a resistor (R7) in series, to the above-mentioned electro-acoustic device (TA). In order to avoid malfunction of the ap similar in the event of a power interruption, an auxiliary power supply section (A ′) has been provided comprising: a buffer battery with its relative automatic recharging circuit, a device for signaling a power interruption and failure the battery as well as a timer circuit (Tp) which activates the auxiliary power section with an intermittence which can be adjusted as desired.
Le fonctionnement est le suivant. En cas d'augmentation de la concentration de gaz inflammable aux alentours du détecteur (R), ce qui entraîne une variation de la propre résistance du détecteur (R),une tension électrique de déséquilibre se vérifie entre les bornes (2) et (3) de l'amplificateur (Ad); correctement amplifié, ce signal amorce le fonctionnement de l'oscillateur de note (G) qui active le transducteur (TA).The operation is as follows. In the event of an increase in the concentration of flammable gas around the detector (R), which leads to a variation in the detector's own resistance (R), an electrical imbalance voltage is verified between terminals (2) and (3 ) of the amplifier (Ad); correctly amplified, this signal initiates the operation of the note oscillator (G) which activates the transducer (TA).
Cette condition de fonctionnement se maintient pendant tout le temps que le capteur (R) continue à déceler un pourcentage de gaz supérieur à celui préfixé, ce pourcentage est préétabli à volonté en faisant varier le seuil d'intervention obtenu en agissant, par l'intermédiaire du potentio-mètre (R3);sur l'état d'équilibrage du pont.This operating condition is maintained throughout the time that the sensor (R) continues to detect a percentage of gas greater than that prefixed, this percentage is preset at will by varying the intervention threshold obtained by acting, through of the potentiometer (R3); on the balance state of the bridge.
Nous indiquons ci-dessous les valeurs des principa les composantes de l'appareil utilisées dans la forme concrète de réalisation considérée;
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82830111T ATE15562T1 (en) | 1981-05-05 | 1982-04-26 | DETECTING DEVICE FOR FLAMMABLE GAS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT939981 | 1981-05-05 | ||
IT09399/81A IT1167878B (en) | 1981-05-05 | 1981-05-05 | FLAMMABLE GAS DETECTOR |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0065497A1 true EP0065497A1 (en) | 1982-11-24 |
EP0065497B1 EP0065497B1 (en) | 1985-09-11 |
Family
ID=11129547
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82830111A Expired EP0065497B1 (en) | 1981-05-05 | 1982-04-26 | Inflammable gas detector device |
Country Status (21)
Country | Link |
---|---|
EP (1) | EP0065497B1 (en) |
JP (2) | JPS57186160A (en) |
AR (1) | AR228973A1 (en) |
AT (1) | ATE15562T1 (en) |
AU (2) | AU8322682A (en) |
BR (1) | BR8202411A (en) |
CA (1) | CA1237505A (en) |
DE (1) | DE3266133D1 (en) |
DK (1) | DK159167C (en) |
ES (1) | ES511787A0 (en) |
FI (1) | FI75430C (en) |
GR (1) | GR75842B (en) |
IE (1) | IE52445B1 (en) |
IL (1) | IL65497A0 (en) |
IT (1) | IT1167878B (en) |
MX (1) | MX151271A (en) |
NO (1) | NO153236C (en) |
NZ (1) | NZ200307A (en) |
PT (1) | PT74843B (en) |
YU (1) | YU44342B (en) |
ZA (1) | ZA823039B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126036B1 (en) * | 1983-05-17 | 1987-08-26 | Controfugas S.R.L. | Inflammable gas detection apparatus with predetermined intervention |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6071999U (en) * | 1983-10-21 | 1985-05-21 | 矢崎総業株式会社 | gas alarm |
NO317999B3 (en) | 2002-06-28 | 2010-07-05 | Sts Gruppen As | Device for securing the operation of a habitat |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3221320A (en) * | 1961-04-13 | 1965-11-30 | Komyo Rikagaku Kogyo Kabushiki | Gas alarm circuit |
US3482233A (en) * | 1967-04-13 | 1969-12-02 | Eastern Co | Gas detector system |
US3750123A (en) * | 1971-11-01 | 1973-07-31 | T J Connelly Constr Co Inc | Smoke sensing circuit with battery standby |
US3950739A (en) * | 1974-10-30 | 1976-04-13 | Campman James P | Detector for detecting and locating the source of a contaminating gas or smoke in the atmosphere |
GB1474700A (en) * | 1974-12-16 | 1977-05-25 | Neotronics Ltd | Device for detecting and indicating the presence in a fluid environment of a potentially dangerous constituent |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT951304B (en) * | 1972-04-11 | 1973-06-30 | Rimoldi V E C Spa | OCN SEWING MACHINE UPPER ROTEL WORK CONVEYOR THE ADJUSTABLE INDEPENDENTLY FROM THE LOWER JAW CONVEYOR |
JPS51106674A (en) * | 1975-03-16 | 1976-09-21 | Masanori Mochizuki | BENDEINGUROORUKI |
JPS5216987U (en) * | 1975-07-24 | 1977-02-05 | ||
JPS5511496Y2 (en) * | 1975-11-17 | 1980-03-12 | ||
JPS5433185U (en) * | 1977-08-09 | 1979-03-05 |
-
1981
- 1981-05-05 IT IT09399/81A patent/IT1167878B/en active
-
1982
- 1982-04-13 IL IL65497A patent/IL65497A0/en not_active IP Right Cessation
- 1982-04-15 NZ NZ200307A patent/NZ200307A/en unknown
- 1982-04-16 AR AR289119A patent/AR228973A1/en active
- 1982-04-26 DE DE8282830111T patent/DE3266133D1/en not_active Expired
- 1982-04-26 EP EP82830111A patent/EP0065497B1/en not_active Expired
- 1982-04-26 AT AT82830111T patent/ATE15562T1/en not_active IP Right Cessation
- 1982-04-26 DK DK185582A patent/DK159167C/en not_active IP Right Cessation
- 1982-04-27 BR BR8202411A patent/BR8202411A/en unknown
- 1982-04-28 JP JP57070574A patent/JPS57186160A/en active Pending
- 1982-04-28 ES ES511787A patent/ES511787A0/en active Granted
- 1982-04-29 IE IE1010/82A patent/IE52445B1/en not_active IP Right Cessation
- 1982-05-03 AU AU83226/82A patent/AU8322682A/en not_active Abandoned
- 1982-05-03 MX MX192553A patent/MX151271A/en unknown
- 1982-05-03 NO NO821461A patent/NO153236C/en unknown
- 1982-05-04 GR GR68058A patent/GR75842B/el unknown
- 1982-05-04 PT PT74843A patent/PT74843B/en not_active IP Right Cessation
- 1982-05-04 YU YU945/82A patent/YU44342B/en unknown
- 1982-05-04 CA CA000402237A patent/CA1237505A/en not_active Expired
- 1982-05-04 ZA ZA823039A patent/ZA823039B/en unknown
- 1982-05-05 FI FI821569A patent/FI75430C/en not_active IP Right Cessation
-
1988
- 1988-06-27 AU AU18433/88A patent/AU1843388A/en not_active Abandoned
-
1990
- 1990-10-19 JP JP1990109076U patent/JPH0424439Y2/ja not_active Expired
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3221320A (en) * | 1961-04-13 | 1965-11-30 | Komyo Rikagaku Kogyo Kabushiki | Gas alarm circuit |
US3482233A (en) * | 1967-04-13 | 1969-12-02 | Eastern Co | Gas detector system |
US3750123A (en) * | 1971-11-01 | 1973-07-31 | T J Connelly Constr Co Inc | Smoke sensing circuit with battery standby |
US3950739A (en) * | 1974-10-30 | 1976-04-13 | Campman James P | Detector for detecting and locating the source of a contaminating gas or smoke in the atmosphere |
GB1474700A (en) * | 1974-12-16 | 1977-05-25 | Neotronics Ltd | Device for detecting and indicating the presence in a fluid environment of a potentially dangerous constituent |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0126036B1 (en) * | 1983-05-17 | 1987-08-26 | Controfugas S.R.L. | Inflammable gas detection apparatus with predetermined intervention |
Also Published As
Publication number | Publication date |
---|---|
JPH0424439Y2 (en) | 1992-06-09 |
BR8202411A (en) | 1983-04-12 |
IE821010L (en) | 1982-11-05 |
DK159167C (en) | 1991-02-11 |
CA1237505A (en) | 1988-05-31 |
FI75430C (en) | 1988-06-09 |
FI821569L (en) | 1982-11-06 |
FI75430B (en) | 1988-02-29 |
NO153236C (en) | 1986-02-05 |
IT8109399A0 (en) | 1981-05-05 |
DK159167B (en) | 1990-09-10 |
AU8322682A (en) | 1982-11-11 |
FI821569A0 (en) | 1982-05-05 |
ATE15562T1 (en) | 1985-09-15 |
ZA823039B (en) | 1983-03-30 |
ES8304343A1 (en) | 1983-02-16 |
NZ200307A (en) | 1985-05-31 |
YU44342B (en) | 1990-06-30 |
ES511787A0 (en) | 1983-02-16 |
AU1843388A (en) | 1988-09-22 |
EP0065497B1 (en) | 1985-09-11 |
AR228973A1 (en) | 1983-05-13 |
MX151271A (en) | 1984-10-29 |
PT74843A (en) | 1982-06-01 |
PT74843B (en) | 1983-12-02 |
JPH0374352U (en) | 1991-07-25 |
NO153236B (en) | 1985-10-28 |
IT1167878B (en) | 1987-05-20 |
DE3266133D1 (en) | 1985-10-17 |
DK185582A (en) | 1982-11-06 |
IL65497A0 (en) | 1982-07-30 |
IE52445B1 (en) | 1987-10-28 |
YU94582A (en) | 1985-03-20 |
GR75842B (en) | 1984-08-02 |
JPS57186160A (en) | 1982-11-16 |
NO821461L (en) | 1982-11-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR2513405A1 (en) | DEVICE FOR CONTROLLING AN AIR TEMPERATURE CHANGE UNIT | |
US4408308A (en) | Sound actuated light switch | |
US4476554A (en) | Sound actuated light switch | |
US5745040A (en) | Outdoor alerting device for smoke alarms | |
US3860919A (en) | Smoke and gas detection and alarm apparatus | |
CA1232343A (en) | Photoelectric smoke detector and alarm system | |
FR2373208A1 (en) | STARTER TO ANNOUNCE A DISCHARGE LAMP IN GAS AND / OR VAPOR | |
EP0065497A1 (en) | Inflammable gas detector device | |
US2969530A (en) | Sound montoring circuitry and instrument | |
US3548205A (en) | Warning device | |
US4211362A (en) | Smoke detecting timer controlled thermostat | |
US4389124A (en) | Device for monitoring selected operating conditions of combustion within a solid fossil fuel burning furnace | |
FR2486205A1 (en) | ELECTRIC IGNITION CIRCUIT FOR BURNER | |
US4910501A (en) | Creosote fire alarm system | |
JPS5844477Y2 (en) | Simple fire alarm | |
JPS5854498A (en) | Interphone apparatus | |
FR2433210A1 (en) | INSTALLATION FOR DETECTING FIRES FROM THEIR APPEARANCE | |
FR2433253A1 (en) | TIMED RELAY AT MAXIMA | |
EP0224628A1 (en) | Electronic correction circuit for a tracing element of an inflammable-gas leak detector | |
JPS5850283Y2 (en) | Flame detector operation test equipment | |
JPH02143151A (en) | Fire sensor | |
CH322573A (en) | Device for monitoring the flame of a burner | |
KR960001672A (en) | Boiler's functional device and safety control device | |
BE682193A (en) | ||
KR950025613A (en) | Fire detector |
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 LU NL SE |
|
17P | Request for examination filed |
Effective date: 19821216 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI LU NL SE |
|
REF | Corresponds to: |
Ref document number: 15562 Country of ref document: AT Date of ref document: 19850915 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3266133 Country of ref document: DE Date of ref document: 19851017 |
|
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: FR Payment date: 19930406 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19930413 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19930416 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19930419 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19930421 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19930428 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19930430 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19930504 Year of fee payment: 12 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19930630 Year of fee payment: 12 |
|
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: 19940426 Ref country code: GB Effective date: 19940426 Ref country code: AT Effective date: 19940426 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19940427 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19940430 Ref country code: CH Effective date: 19940430 Ref country code: BE Effective date: 19940430 |
|
BERE | Be: lapsed |
Owner name: CONTE FRANCO MARIA Effective date: 19940430 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19941101 |
|
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 19940426 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19941229 |
|
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: 19950103 |
|
EUG | Se: european patent has lapsed |
Ref document number: 82830111.9 Effective date: 19941110 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |