NO852067L - GAS AUTOMATIC SHUTTER VALVE. - Google Patents
GAS AUTOMATIC SHUTTER VALVE.Info
- Publication number
- NO852067L NO852067L NO852067A NO852067A NO852067L NO 852067 L NO852067 L NO 852067L NO 852067 A NO852067 A NO 852067A NO 852067 A NO852067 A NO 852067A NO 852067 L NO852067 L NO 852067L
- Authority
- NO
- Norway
- Prior art keywords
- valve
- spindle
- gas
- locking pin
- electromagnet
- Prior art date
Links
- 230000003993 interaction Effects 0.000 claims 1
- 238000009825 accumulation Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
Description
Foreliggende oppfinnelse angår en automatisk stengeventilThe present invention relates to an automatic shut-off valve
for gass. Ventilen.er konstruert på en slik måte at til-førselen av gass automatisk stenges hvis en gasslekkasje oppstår. for gas. The valve is designed in such a way that the supply of gas is automatically closed if a gas leak occurs.
Som kjent kan det oppstå gasslekkasjer i gassinstallasjoner enten på grunn av lekkasje i selve installasjonen eller fordi en flamme slukkes på grunn av trekk i luften. Det danner seg da en ansamling av gass med påfølgende risiko for eksplosjoner. As is known, gas leaks can occur in gas installations either because of a leak in the installation itself or because a flame is extinguished due to drafts in the air. An accumulation of gas then forms with the subsequent risk of explosions.
For å oppnå full sikring mot gasslekkasjer, er ventilen konstruert slik at den arbeider sammen med en gassvarsler. Ventilen er konstruert slik at når gassvarsleren registrerer en ansamling av gass som følge av de nevnte årsaker, utløses en lukkemekanisme som fører til at gasstilførselen automatisk stenges. To achieve full protection against gas leaks, the valve is designed so that it works together with a gas detector. The valve is designed so that when the gas detector registers an accumulation of gas as a result of the reasons mentioned, a closing mechanism is triggered which causes the gas supply to be automatically shut off.
I tillegg til sin primære funksjon, er ventilen også bygget slik at den stenger for gasstilførselen hvis det av en eller annen årsak oppstår et øket trykk.på gassen, da et for høyt trykk likeledes kan forårsake problemer av forskjellig art. Hvis tilstrømningen til gassblusset blir for kraftig, stenges derfor tilførselen automatisk. In addition to its primary function, the valve is also built so that it shuts off the gas supply if, for one reason or another, an increased pressure occurs on the gas, as too high a pressure can also cause problems of various kinds. If the inflow to the gas burner becomes too strong, the supply is therefore automatically shut off.
For å kunne utføre begge disse funksjoner, tar oppfinnelsen utgangspunkt i en ventil som har en vinkelformet passasje for gassen, der en del av passasjen også inneholder et. festepunkt eller et hode for ventilen. Gasstrykket, kombi-nert med en fjærmekanisme gjør at ventilhodet lett lukker for gasstilførselen. In order to be able to perform both of these functions, the invention is based on a valve which has an angular passage for the gas, where part of the passage also contains a. attachment point or a head for the valve. The gas pressure, combined with a spring mechanism, means that the valve head easily closes the gas supply.
Fra ventilhodet går det ut en spindel som stikker gjennom ventilen i forlengelsen av den forreste del av den vinkelformede passasje. Spindelen har hermetisk lukning og står i direkte forbindelse med en betjeningsknapp. I området ved knappen har spindelen et omløpende V-formet spor der en låsetapp passer inn, i tilknytning til ankeret for en elektromagnet. Når betjeningsknappen påvirkes for å åpne ventilen, blir kretsen til elektromagneten sluttet og denne vil, ved hjelp av låsetappen, føre til låsing av stammen og dermed også av ventilhodet i dettes åpne stilling. From the valve head there is a spindle that protrudes through the valve in the extension of the front part of the angular passage. The spindle has a hermetic seal and is in direct connection with an operating button. In the area near the button, the spindle has a circumferential V-shaped groove into which a locking pin fits, adjacent to the armature for an electromagnet. When the operating button is actuated to open the valve, the circuit of the electromagnet is closed and this will, with the help of the locking pin, lead to locking of the stem and thus also of the valve head in its open position.
Ventilhodet forblir i åpen" stilling helt til knappen betjenes eller tilførselen til elektromagneten brytes. Gassvarsleren kontrollerer tilførselen -av 'strøm til " elektromagneten, hvilket vil si at hvis gassvarsleren registrerer at gass siver ut, bevirker den umiddelbart at strømtilførselen til elektromagneten avbrytes, hvorved låsetappen frigjøres og stammen kan bevege seg. Trykket på ventilhodet fra selve gassen og fra fjærmekanismen, bevirker også at ventilen øyeblikkelig stenges. The valve head remains in the open" position until the button is operated or the supply to the electromagnet is interrupted. The gas detector controls the supply -of 'power" to the electromagnet, which means that if the gas detector detects that gas is leaking out, it immediately causes the power supply to the electromagnet to be interrupted, thereby locking the pin is released and the stem can move. The pressure on the valve head from the gas itself and from the spring mechanism also causes the valve to close immediately.
Som tidligere nevnt, kan et for høyt gasstrykk også medføreAs previously mentioned, an excessively high gas pressure can also result
at ventilen stenger. Fjærmekanismen som er tilkoblet ventil-u hodet er slik avpasset at når trykket på ventilhodet over-stiger et bestemt nivå, fører dette til at låsetappen trekkes tilbake fra sporet i spindelen, hvorved ventilen stenges. that the valve closes. The spring mechanism which is connected to the valve head is adapted in such a way that when the pressure on the valve head exceeds a certain level, this causes the locking pin to be pulled back from the slot in the spindle, whereby the valve is closed.
Oppfinnelsen'er kjennetegnet ved' de *i kravene gjengitte trekk og vil i det følgende bli forklart nærmere under henvisning til tegningene der: Fig. 1 viser et snitt gjennom en automatisk ventil sett fra siden. Ventilen lukkes automatisk hvis gasslekkasjer oppstår og ventilen er her i lukket stilling, The invention is characterized by the features reproduced in the claims and will be explained in more detail below with reference to the drawings in which: Fig. 1 shows a section through an automatic valve seen from the side. The valve closes automatically if gas leaks occur and the valve is here in the closed position,
fig. 2 viser en snitt gjennom samme ventil som på fig. 1,fig. 2 shows a section through the same valve as in fig. 1,
men i åpen stilling,but in open position,
fig. 3 viser i forstørret målestokk forbindelsen mellom spindelen som er tilsluttet ventilhodet og låsetappen som er tilkoblet elektromagnetens bevegelige anker og fig. 3 shows on an enlarged scale the connection between the spindle which is connected to the valve head and the locking pin which is connected to the movable armature of the electromagnet and
fig. 4 viser et snitt gjennom ventilens nederste del med en ring som er festepunkt for fjæren som er innrettet til å bevege ventilhodet. fig. 4 shows a section through the lower part of the valve with a ring which is the attachment point for the spring which is adapted to move the valve head.
Av tegningene fremgår det at ventilen er endel av ventilhuset 1, der det, som tidligere nevnt, finnes en vinkelformet passasje for gassen. I .den forreste del av denne passasje finnes en ring 2 festet med en bøyle 3 som en fjær 4 hviler på. Fjæren er utført slik at den påvirker en lukkemekanisme eller ventilens hode 5 som ved hjelp av en ringformet pakning 6 ligger tettende an mot ventilsetet 7, som er en del av selve ventilhuset 1. From the drawings, it appears that the valve is part of the valve housing 1, where, as previously mentioned, there is an angled passage for the gas. In the front part of this passage there is a ring 2 attached with a hoop 3 on which a spring 4 rests. The spring is designed so that it affects a closing mechanism or the valve's head 5 which, by means of an annular gasket 6, rests tightly against the valve seat 7, which is part of the valve housing 1 itself.
På den side som vender fra fjæren 4, har ventilhodet 6 en spindel 8 som går gjennom og stikker ut av den vinkelformede gasspassasje. Spindelen går altså gjennom ventilhuset 1 On the side facing away from the spring 4, the valve head 6 has a spindle 8 which passes through and protrudes from the angular gas passage. The spindle therefore passes through the valve housing 1
og gjennom en boring 9 i dette.and through a bore 9 in this.
Spindelen 8 har hermetisk tetning i boringen 9 ved hjelp av en gummiring 10 i et spor i.spindelen. The spindle 8 has a hermetic seal in the bore 9 by means of a rubber ring 10 in a groove in the spindle.
Nær den frie ende er spindelen 8 forsynt med et nedfrest V-formet spor og i den ende av spindelen som går utenfor ventilhuset er en trykknapp 13 festet med en skrue 12. Near the free end, the spindle 8 is provided with a milled V-shaped groove and at the end of the spindle that goes outside the valve housing, a push button 13 is attached with a screw 12.
På enden av ventilhuset 1 der trykknappen 13 befinner seg og gassutløpsrøret 14, er det anbragt en elektromagnet 15 som holdes fast ved hjelp av en anordning 16. I det sylindriske hulrom 17 ligger et anker 18 som kan beveges frem og tilbake, påvirket av det magnetiske felt magneten setter opp. Ankeret 18 er tilsluttet en låsetapp 20. At the end of the valve housing 1 where the push button 13 is located and the gas outlet pipe 14, an electromagnet 15 is placed which is held in place by means of a device 16. In the cylindrical cavity 17 is an armature 18 which can be moved back and forth, influenced by the magnetic field the magnet sets up. The anchor 18 is connected to a locking pin 20.
Tappen 20 har en spiss hvis form svarer til sporet 11 i spindelen 8. The pin 20 has a tip whose shape corresponds to the groove 11 in the spindle 8.
Ventilens virkemåte er slik:The operation of the valve is as follows:
Hvis man går ut fra den lukkestilling som er vist på fig. 1, vil man kunne forskyve spindelen 8 aksialt ved et trykk på trykknappen 13 inntil ventilen åpner som vist.på fig. 2, der elektromagneten 15 er innkoblet, slik at ankeret 18 skyver låsetappen 20 mot spindelen 8 inntil låsetappens spisse ende griper inn i det V-formede spor på spindelen 8 If one starts from the closed position shown in fig. 1, it will be possible to move the spindle 8 axially by pressing the push button 13 until the valve opens as shown in fig. 2, where the electromagnet 15 is switched on, so that the armature 18 pushes the locking pin 20 towards the spindle 8 until the pointed end of the locking pin engages in the V-shaped groove on the spindle 8
og på grunn av gasstrykket og trykket fra fjæren beholder ventilhodet 5 den stilling som er vist på fig. 2. and due to the gas pressure and the pressure from the spring, the valve head 5 retains the position shown in fig. 2.
Når gassvarsleren, som ikke er vist på tegningene og som er tilleggsutstyr til ventilen, sender ut et signal fordi den When the gas detector, which is not shown in the drawings and is an accessory to the valve, emits a signal because it
har registrert gassforekomst>i luften, brytes kretsen til elektromagneten 15. Trykket på spindelen fra fjæren 4 bevirker da at låsetappen 20 skyves tilbake, hvorved spindelen 8 frigjøres og ventilhodet kommer i lukkestilling, som vist på fig. 1. has detected the presence of gas in the air, the circuit of the electromagnet 15 is broken. The pressure on the spindle from the spring 4 then causes the locking pin 20 to be pushed back, whereby the spindle 8 is released and the valve head comes into the closed position, as shown in fig. 1.
_Det kan forekomme at gasstrykket blir for høyt og trykket_It may happen that the gas pressure becomes too high and the pressure
på ventilhodet 5 i åpen stilling som vist på fig. 2, blir da større enn det trykk som vanligvis skapes av fjæren 4 on the valve head 5 in the open position as shown in fig. 2, then becomes greater than the pressure usually created by the spring 4
og av det vanlige gasstrykk ved utløpsrøret. Låsetappen 20 klarer da ikke lenger åuholde seg i sporet 11 i spindelen 8 og denne, sammen med ventilhodet 5, beveger seg da til lukkestilling. , ....-^-v :.,.? i, • . / . • . and of the usual gas pressure at the outlet pipe. The locking pin 20 is then no longer able to stay in the groove 11 in the spindle 8 and this, together with the valve head 5, then moves to the closed position. , ....-^-v :.,.? in, • . / . • .
Selv om gassinntaket 21 og gassutløpet 14 på tegningene er vist med innvendige gjenger, kan tilkoblingen til ventilen godt være av en annen vanlig type, f.eks. ved hjelp av klemmer, muffer o.l. og det materiale ventilhuset er fremstilt av Although the gas inlet 21 and gas outlet 14 in the drawings are shown with internal threads, the connection to the valve may well be of another common type, e.g. by means of clamps, sleeves etc. and the material the valve housing is made of
kan være messing, bronse, rustfritt stål, plast etc.can be brass, bronze, stainless steel, plastic etc.
Av beskrivelsen fremgår det at ventilen automatisk inntar lukkestilling ved strømbrudd. Ventilen kan åpnes på nytt From the description, it appears that the valve automatically assumes the closed position in the event of a power failure. The valve can be opened again
ved et lett trykk på knappen 13.by lightly pressing the button 13.
Ved langvarig strømbrudd kan ventilen settes i åpen stilling på mekanisk måte, men man skal da være oppmerksom på at ventilen i dette tilfelle ikke lenger tjener som sikkerhetsventil. Når strømmen kommer tilbake må man derfor påse at ventilen settes i lukkestilling. In the event of a long-term power failure, the valve can be set in the open position mechanically, but one must then be aware that in this case the valve no longer serves as a safety valve. When the power returns, you must therefore ensure that the valve is set to the closed position.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES1984279457U ES279457Y (en) | 1984-05-24 | 1984-05-24 | AUTOMATIC SUPPLY INTERRUPTION PASS VALVE FOR GAS LEAKS |
Publications (1)
Publication Number | Publication Date |
---|---|
NO852067L true NO852067L (en) | 1985-11-25 |
Family
ID=8430715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO852067A NO852067L (en) | 1984-05-24 | 1985-05-23 | GAS AUTOMATIC SHUTTER VALVE. |
Country Status (14)
Country | Link |
---|---|
BE (1) | BE902491A (en) |
DE (1) | DE3518430A1 (en) |
DK (1) | DK223785A (en) |
ES (1) | ES279457Y (en) |
FI (1) | FI851940L (en) |
FR (1) | FR2582377A1 (en) |
GB (1) | GB2159249A (en) |
GR (1) | GR851265B (en) |
IT (1) | IT1200489B (en) |
LU (1) | LU85911A1 (en) |
NL (1) | NL8501454A (en) |
NO (1) | NO852067L (en) |
PT (1) | PT80520A (en) |
SE (1) | SE8502557L (en) |
Families Citing this family (29)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4916437A (en) * | 1987-08-14 | 1990-04-10 | Gazzaz Hesham H | Gas monitoring system with leak detection and flow cutoff |
DE3813794A1 (en) * | 1988-04-23 | 1989-11-02 | Brennecke Hermann | SLIDE VALVE FOR FLUID-CONDUCTING LINES |
WO1990012234A1 (en) * | 1989-04-13 | 1990-10-18 | Dansam Holdings Limited | Valves |
YU48550B (en) * | 1990-07-06 | 1998-11-05 | Pipelife Rohrsysteme Gesellschaft M.B.H. | Safety shut-off device for gas pipelines comprising valve |
AT398238B (en) * | 1990-12-21 | 1994-10-25 | Pipelife Rohrsysteme Gmbh | Safety closing apparatus |
IT1242694B (en) * | 1990-12-20 | 1994-05-17 | Atex Spa | LOW ENERGY PILOTAGE SOLENOID VALVE FOR INTERCEPTION OF GASEOUS FLUIDS. |
ES2038539B1 (en) * | 1991-08-26 | 1995-11-01 | Christian Schafer | GAS PRESENCE DETECTOR DEVICE, AND SAFETY CLOSING DEVICE BASED ON SUCH DETECTOR DEVICE. |
DE4130638A1 (en) * | 1991-09-14 | 1993-03-18 | Bosch Gmbh Robert | FLUIDIC CONTINUOUS VALVE WITH LOCKING UNIT |
EP0763684B1 (en) * | 1995-09-15 | 2000-12-06 | Rolnaldo Cavalieri | Apparatus for automatic blocking of gas in a gas circuit |
IL117180A0 (en) * | 1996-02-19 | 1996-06-18 | Sapir Amos | A safety valve device |
DE19910450A1 (en) * | 1999-03-10 | 2000-09-14 | Zf Luftfahrttechnik Gmbh | Locking device |
DE19913380C1 (en) * | 1999-03-24 | 2000-05-25 | Knorr Bremse Systeme | Arrangement for controlled actuation of valve switching element, especially for vehicle container switching valve has pressure arrangement for displacing switching element into safety position |
IL130651A (en) | 1999-06-27 | 2002-02-10 | Century Invest Ltd | Gas valve safety device |
DE10034077A1 (en) * | 2000-06-24 | 2002-01-03 | Manfred Veenker | safety device |
EP1167849B1 (en) * | 2000-06-24 | 2005-02-16 | Manfred Dr.-Ing. Veenker | Safety device |
CH695910A5 (en) * | 2000-09-01 | 2006-10-13 | Stefan Boppart | Safety valve for preventing explosions, e.g. in chemical industry, comprises seal mounted on rods attached to springs at either end and held in position by retainers, one of which is released when pressure across seal exceeds preset value |
CH695066A5 (en) * | 2001-03-28 | 2005-11-30 | Rico Sicherheitstechnik Ag | Explosion protection valve. |
RU2229052C1 (en) * | 2003-04-07 | 2004-05-20 | Романенко Николай Трофимович | Thermoshutoff valve |
DE10357423A1 (en) | 2003-12-04 | 2005-06-30 | Rolls-Royce Deutschland Ltd & Co Kg | Quick closing valve for interrupting a fluid flow |
DE102006040953B4 (en) * | 2006-08-31 | 2008-06-12 | Armaturen-Wolff Friedrich H. Wolff Gmbh & Co. Kg | Arrangement for the electrical release of mechanically actuated quick-release valves |
DE102007005980B4 (en) * | 2007-02-07 | 2012-03-01 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | Device for the controlled actuation of a switching element of a valve |
ITBS20070155A1 (en) * | 2007-10-11 | 2009-04-12 | Fiorentini Minireg S P A | SAFETY SOLENOID VALVE |
ES2357144T3 (en) * | 2007-12-05 | 2011-04-19 | Pietro Fiorentini S.P.A. | VALVE. |
CN102829232B (en) * | 2011-06-14 | 2016-02-24 | Tlx技术有限公司 | For the solenoid interlock of booster actuator |
US8640783B2 (en) * | 2011-06-14 | 2014-02-04 | Tlx Technologies, Llc | Solenoid interlock for booster actuator |
RU2556056C1 (en) * | 2014-04-15 | 2015-07-10 | Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") | Fire valve |
CN105508671B (en) * | 2016-02-02 | 2018-06-26 | 上海霍贝电机制造有限公司 | A kind of valve mechanism suitable for cylinder for liquefied gas intelligent control |
CN108869844B (en) * | 2018-07-16 | 2019-07-23 | 浙江春晖智能控制股份有限公司 | A kind of explosion-proof solenoid valve |
EP3909821B1 (en) * | 2020-05-13 | 2023-03-08 | KNORR-BREMSE Systeme für Schienenfahrzeuge GmbH | Bi-stable quick-release valve |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE398033A (en) * | ||||
FR747499A (en) * | 1932-12-13 | 1933-06-16 | Safety device preventing any danger of suffocation or explosion by gas or other applications | |
GB549910A (en) * | 1941-08-27 | 1942-12-14 | Horace Alexander Stevenson | Improvements in or relating to electrically controlled valves |
GB648831A (en) * | 1946-05-08 | 1951-01-10 | United Aircraft Prod | Improvements in or relating to leakage protecting apparatus for cooling systems and radiators for such systems |
US2508588A (en) * | 1947-01-28 | 1950-05-23 | Bendix Aviat Corp | Protective apparatus |
FR1186833A (en) * | 1956-01-25 | 1959-09-02 | Gas Alarm Di Dr Francesco Mall | Automatic device for signaling gas leaks and stopping gas flow |
GB1069719A (en) * | 1964-10-30 | 1967-05-24 | Eclipse Fuel Engineering Compa | Automatic shut-off fluid flow control valve |
JPS4988121A (en) * | 1972-12-08 | 1974-08-23 | ||
FR2249274A1 (en) * | 1973-10-26 | 1975-05-23 | Lauterbach Ernst | Gas pipe control valve controlled by leak detector - is prevented from closing until leak is detected |
US4098284A (en) * | 1977-01-04 | 1978-07-04 | Masafusa Yamada | Safety device for gas supply pipe |
-
1984
- 1984-05-24 ES ES1984279457U patent/ES279457Y/en not_active Expired
-
1985
- 1985-05-15 FI FI851940A patent/FI851940L/en not_active Application Discontinuation
- 1985-05-21 DK DK223785A patent/DK223785A/en not_active Application Discontinuation
- 1985-05-21 NL NL8501454A patent/NL8501454A/en not_active Application Discontinuation
- 1985-05-21 GB GB08512786A patent/GB2159249A/en not_active Withdrawn
- 1985-05-22 GR GR851265A patent/GR851265B/el unknown
- 1985-05-22 DE DE19853518430 patent/DE3518430A1/en not_active Withdrawn
- 1985-05-23 PT PT80520A patent/PT80520A/en unknown
- 1985-05-23 SE SE8502557A patent/SE8502557L/en not_active Application Discontinuation
- 1985-05-23 NO NO852067A patent/NO852067L/en unknown
- 1985-05-23 IT IT20851/85A patent/IT1200489B/en active
- 1985-05-23 BE BE0/215064A patent/BE902491A/en not_active IP Right Cessation
- 1985-05-23 FR FR8507799A patent/FR2582377A1/en not_active Withdrawn
- 1985-05-23 LU LU85911A patent/LU85911A1/en unknown
Also Published As
Publication number | Publication date |
---|---|
GB2159249A (en) | 1985-11-27 |
BE902491A (en) | 1985-09-16 |
IT8520851A0 (en) | 1985-05-23 |
PT80520A (en) | 1985-06-01 |
DK223785A (en) | 1985-11-25 |
ES279457Y (en) | 1985-06-16 |
FI851940A0 (en) | 1985-05-15 |
FI851940L (en) | 1985-11-25 |
SE8502557L (en) | 1985-11-25 |
ES279457U (en) | 1984-12-16 |
LU85911A1 (en) | 1986-01-14 |
DK223785D0 (en) | 1985-05-21 |
DE3518430A1 (en) | 1985-11-28 |
GR851265B (en) | 1985-11-25 |
NL8501454A (en) | 1985-12-16 |
FR2582377A1 (en) | 1986-11-28 |
SE8502557D0 (en) | 1985-05-23 |
GB8512786D0 (en) | 1985-06-26 |
IT1200489B (en) | 1989-01-18 |
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