EP0310547B1 - Steam generator for baths - Google Patents

Steam generator for baths Download PDF

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Publication number
EP0310547B1
EP0310547B1 EP88810617A EP88810617A EP0310547B1 EP 0310547 B1 EP0310547 B1 EP 0310547B1 EP 88810617 A EP88810617 A EP 88810617A EP 88810617 A EP88810617 A EP 88810617A EP 0310547 B1 EP0310547 B1 EP 0310547B1
Authority
EP
European Patent Office
Prior art keywords
steam
water bath
steam generator
housing
baths according
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 - Lifetime
Application number
EP88810617A
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German (de)
French (fr)
Other versions
EP0310547A3 (en
EP0310547A2 (en
Inventor
Josef Balthasar Arnold
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.)
Arnold Josef Balthasar
Original Assignee
Arnold Josef Balthasar
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 Arnold Josef Balthasar filed Critical Arnold Josef Balthasar
Priority to AT88810617T priority Critical patent/ATE70968T1/en
Publication of EP0310547A2 publication Critical patent/EP0310547A2/en
Publication of EP0310547A3 publication Critical patent/EP0310547A3/en
Application granted granted Critical
Publication of EP0310547B1 publication Critical patent/EP0310547B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
    • A61H33/00—Bathing devices for special therapeutic or hygienic purposes
    • A61H33/06—Artificial hot-air or cold-air baths; Steam or gas baths or douches, e.g. sauna or Finnish baths
    • A61H33/063—Heaters specifically designed therefor

Definitions

  • the present invention relates to a steam generator for steam baths, in particular steam cabins.
  • a known steam generator for steam cabins heats the evaporator liquid over an evaporator surface in the area of the cabin floor.
  • the evaporator liquid is recirculated between the collecting container and the evaporator surface using a circulating pump, and an active substance container is also included in the circuit as required.
  • the disadvantage of this system is that it requires a system-specific cabin construction. This means that this facility can neither be used to combine simple, standard shower cubicles nor to supplement existing cubicles. The system is therefore too complex to construct. Furthermore, it takes too long for the evaporator liquid to boil, since the entire tank content ultimately has to be warmed up. The system can therefore be described as sluggish.
  • the drug container intended for admixture is exposed to deposits and must be cleaned from time to time.
  • Another The disadvantage of this active substance container is that it cannot be emptied using the available means. So there is the problem: the residues are used as a breeding ground by bacteria, especially if the operation of the steam cabin is suspended for a few days or the drug container is not included in the operation. It remains to be seen whether this disadvantage in operation is really avoided by the effects of elevated temperatures and the destruction of the bacteria, because the risk of adverse effects will only be avoided if there is no reason to do so.
  • the present invention is intended to avoid these disadvantages. According to the invention, this object is achieved according to the features of the claims.
  • the advantages of the invention are the compact and therefore inexpensive construction, the universal usability for cabins of all kinds, the prompt operational readiness and the complete hygiene, without the user having to do anything, and last but not least the forced circulation of the entire contents of the steam cabin, i.e. the air-steam Mix.
  • the steam generator 1 shown in FIG. 1 has a columnar housing 2 with a triangular cross section with two mutually perpendicular side walls 2 I and 2 II .
  • a roof 2 III closes the housing 2 at the top, so that the housing 2 has only two openings at its upper end, the inlet opening 21 for the ambient air and a filler neck 8 I for filling the water tank 8 which is between the roof 2 III and an intermediate floor 2 IV is arranged.
  • the fan 4 and the electrical devices (not shown) such as fuses, main switches, distribution terminals and, if appropriate, a time switch and a temperature measuring device are also located in this intermediate space.
  • Below the intermediate floor 2 IV is the water bath 3 in housed a pipe-shaped pipe 3 II .
  • This tube 3 II enables the receptacle of the active substance 6 to be accommodated through its opening ending in the housing 2. This opening is closed in operation by the cover 23, the active substance container 6 being fastened to it by a chain 24 in such a way that it dips into the water bath 3. So that the pipe 3 II can keep the water bath 3, it is provided with a bottom 3 III .
  • the water bath 3 is emptied by a drain tap 10 which can be operated from the outside. This process can also be automated by, for example, designing the drain valve 10 as a solenoid valve that is opened by a timer or the main switch when the device is switched off.
  • the function of the steam generator includes the heater 3 IV , which is arranged in the form of a spiral resistance heater in the water bath 3.
  • the size of the water bath 3 is kept small in order to bring the amount of the water bath 3 through the heater 3 IV as close as possible to the boiling point.
  • the air supplied by the fan 4 is advantageously through an annular channel on the circumference of the water bath 3 and. of the comprehensive pipe 3 II initiated.
  • the bubbling of the water bath 3 by the air supply increases the contact areas and intensifies the saturation of the air.
  • the circulation of the air improves the temperature distribution of the steam cabin compared to the flow of pure convection.
  • the water turned to steam is returned to the water bath 3 by the circulation.
  • the present steam generator 1 works in a closed circuit compared to the open system of the prior art. Since the use of active ingredients 5 is considered an optional measure, the water bath 3 was deliberately called water bath and not liquid bath.
  • the atmosphere of the cabin is referred to as air, whereby the saturation and supersaturation of the air can naturally also be called steam or steam-air mixtures.
  • FIGS. 2 and 3 The possibilities of arranging the steam generator are shown in FIGS. 2 and 3.
  • the steam generator 1 shown in FIG. 1 is shown inside a shower cabin 30. If, for any reason, the installation of the steam generator 1 outside the cabin is desired, the air inlet 21 and the outlet opening 22 are each supplemented with an angle duct piece so that a direct connection is created through the cabin wall and the steam generator 1.
  • An advantage of this arrangement is that all electrical installations are outside the cabin, and thereby the risks of electrical Electricity for the bathroom user can also be reduced.
  • the steam generators of uniform size according to the invention are suitable as modular units for equipping steam cabins or steam baths of any size. Thanks to the invention, for example, the conversion or addition of a Finnish sauna to a "Turkish bath" is easily possible.

Abstract

A steam generator (1) for steam baths, in particular steam cubicles, is proposed, where a column-shaped housing (2) has an electrically heatable water bath (3) acted upon by air in operation, so that the air surrounding the housing (2) is sucked through a ventilator (4) into the housing (2) and recirculated through the housing (2) and through the water bath (3).

Description

Die vorliegende Erfindung betrifft einen Dampferzeuger für Dampfbäder, insbesondere Dampfkabinen.The present invention relates to a steam generator for steam baths, in particular steam cabins.

Ein bekannter Dampferzeuger für Dampfkabinen, wie in der Literatur CH-636263, 636264 und 630522 beschrieben, erhitzt die Verdampferflüssigkeit über einer Verdampferfläche im Bereich des Kabinenbodens. Dabei wird die Verdampferflüssigkeit mit einer Umwälzpumpe zwischen Sammelbehälter und Verdampferfläche rezirkuliert, und je nach Bedarf ist auch ein Wirkstoffbehälter in den Kreislauf eingeschlossen. Nachteilig an diesem System ist, dass es eine systemeigene Kabinenkonstruktion bedingt. Somit können mit dieser Einrichtung weder einfache, handelsübliche Duschekabinen kombiniert noch bestehende Kabinen ergänzt werden. Daher ist das System als Konstruktion zu aufwendig. Ferner dauert es zu lange, bis die Verdampferflüssigkeit zum Sieden gebracht wird, da letztlich der gesamte Tankinhalt aufgewärmt werden muss. Das System kann darum als träge bezeichnet werden. Der für das Beimischen bestimmte Wirkstoffbehälter ist Ablagerungen ausgesetzt und muss von Zeit zu Zeit gereinigt werden. Ein weiterer Nachteil dieses Wirkstoffbehälters ist, dass er mit den vorhandenen Mitteln nicht entleert werden kann. So besteht das Problem: die Rückstände werden von Bakterien als Nährboden benutzt, insbesondere dann, wenn der Betrieb der Dampfkabine einige Tage ausgesetzt oder der Wirkstoffbehälter nicht in den Betrieb einbezogen wird. Ob dieser Nachteil im Betrieb durch das Einwirken von erhöhten Temperaturen und der Vernichtung der Bakterien wirklich vermieden wird, kann offen bleiben, denn die Gefahr nachteiliger Effekte wird mit Sicherheit erst dann vermieden, wenn es dazu gar keine Veranlassung gibt.A known steam generator for steam cabins, as described in the literature CH-636263, 636264 and 630522, heats the evaporator liquid over an evaporator surface in the area of the cabin floor. The evaporator liquid is recirculated between the collecting container and the evaporator surface using a circulating pump, and an active substance container is also included in the circuit as required. The disadvantage of this system is that it requires a system-specific cabin construction. This means that this facility can neither be used to combine simple, standard shower cubicles nor to supplement existing cubicles. The system is therefore too complex to construct. Furthermore, it takes too long for the evaporator liquid to boil, since the entire tank content ultimately has to be warmed up. The system can therefore be described as sluggish. The drug container intended for admixture is exposed to deposits and must be cleaned from time to time. Another The disadvantage of this active substance container is that it cannot be emptied using the available means. So there is the problem: the residues are used as a breeding ground by bacteria, especially if the operation of the steam cabin is suspended for a few days or the drug container is not included in the operation. It remains to be seen whether this disadvantage in operation is really avoided by the effects of elevated temperatures and the destruction of the bacteria, because the risk of adverse effects will only be avoided if there is no reason to do so.

Die vorliegende Erfindung soll diese Nachteile vermeiden. Erfindungsgemäss wird diese Aufgabe gemäss den Merkmalen der Ansprüche gelöst. Die Vorteile der Erfindung sind die kompakte und daher preiswerte Konstruktion, die universale Verwendbarkeit für Kabinen aller Art, die prompte Betriebsbereitschaft und die vollständige Hygiene, ohne Dazutun des Benützers, und nicht zuletzt die zwangsweise Umwälzung des gesamten Inhaltes der Dampfkabine, also des Luft-Dampf-Gemisches.The present invention is intended to avoid these disadvantages. According to the invention, this object is achieved according to the features of the claims. The advantages of the invention are the compact and therefore inexpensive construction, the universal usability for cabins of all kinds, the prompt operational readiness and the complete hygiene, without the user having to do anything, and last but not least the forced circulation of the entire contents of the steam cabin, i.e. the air-steam Mix.

Anhand der Figuren wird die Erfindung näher erläutert. Es zeigen:

Fig. 1
einen Schnitt durch den Dampferzeuger, für den Einsatz des Dampferzeugers in einer Kabine,
Fig. 2
den Einsatz des Dampferzeugers in einer Duschekabine,
Fig. 3
den Einsatz des Dampferzeugers an einer Badekabine.

The invention is explained in more detail with reference to the figures. Show it:
Fig. 1
a section through the steam generator, for the use of the steam generator in a cabin,
Fig. 2
the use of the steam generator in a shower cubicle,
Fig. 3
the use of the steam generator in a bathing cabin.

Der in Fig. 1 dargestellte Dampferzeuger 1 weist ein säulenförmiges Gehäuse 2 mit Dreieckquerschnitt mit zwei aufeinander senkrecht stehenden Seitenwänden 2I und 2II auf. Dabei schliesst ein Dach 2III das Gehäuse 2 nach oben ab, so dass das Gehäuse 2 an seinem oberen Ende nur zwei Oeffnungen aufweist, die Eintrittsöffnung 21 für die Umgebungsluft und einen Füllstutzen 8I zum Auffüllen des Wassertankes 8, der zwischen dem Dach 2III und einem Zwischenboden 2IV angeordnet ist. In diesem Zwischenraum befindet sich auch der Ventilator 4 sowie die nicht gezeigten elektrischen Einrichtungen wie Sicherungen, Hauptschalter, Verteilklemmen und gegebenenfalls ein Zeitschalt- und ein Temperaturmessgerät. Unterhalb des Zwischenbodens 2IV ist das Wasserbad 3 in einem pfeifenförmigen Rohr 3II untergebracht. Dabei ermöglicht dieses Rohr 3II die Aufnahme des Wirkstoffbehälters 6 durch seine in das Gehäuse 2 endende Oeffnung. Diese Oeffnung wird betriebsmässig durch den Deckel 23 geschlossen, wobei an ihm durch eine Kette 24 der Wirkstoffbehälter 6 so befestigt wird, dass dieser in das Wasserbad 3 hineintaucht. Damit das Rohr 3II das Wasserbad 3 behalten kann, ist es mit einem Boden 3III versehen. Die Entleerung des Wasserbades 3 wird durch einen von aussen bedienbaren Ablasshahn 10 besorgt. Dieser Vorgang lässt sich auch automatisieren, indem z.B. der Ablasshahn 10 als Solenoidventil ausgebildet wird, das von einer Zeituhr oder dem Hauptschalter, beim Ausschalten des Gerätes, geöffnet wird.The steam generator 1 shown in FIG. 1 has a columnar housing 2 with a triangular cross section with two mutually perpendicular side walls 2 I and 2 II . A roof 2 III closes the housing 2 at the top, so that the housing 2 has only two openings at its upper end, the inlet opening 21 for the ambient air and a filler neck 8 I for filling the water tank 8 which is between the roof 2 III and an intermediate floor 2 IV is arranged. The fan 4 and the electrical devices (not shown) such as fuses, main switches, distribution terminals and, if appropriate, a time switch and a temperature measuring device are also located in this intermediate space. Below the intermediate floor 2 IV is the water bath 3 in housed a pipe-shaped pipe 3 II . This tube 3 II enables the receptacle of the active substance 6 to be accommodated through its opening ending in the housing 2. This opening is closed in operation by the cover 23, the active substance container 6 being fastened to it by a chain 24 in such a way that it dips into the water bath 3. So that the pipe 3 II can keep the water bath 3, it is provided with a bottom 3 III . The water bath 3 is emptied by a drain tap 10 which can be operated from the outside. This process can also be automated by, for example, designing the drain valve 10 as a solenoid valve that is opened by a timer or the main switch when the device is switched off.

Zur Funktion des Dampferzeugers gehört die Heizung 3IV, die in Form einer gewundenen Widerstandsheizung in das Wasserbad 3 angeordnet wird. Die Grösse des Wasserbades 3 wird klein gehalten, um die Menge des Wasserbades 3 durch die Heizung 3IV möglichst schnell in die Nähe des Siedepunktes zu bringen. Die durch den Ventilator 4 zugeführte Luft wird vorteilhafterweise durch einen Ringkanal am Umfang des Wasserbades 3 resp. des umfassenden Rohres 3II eingeleitet. Das Sprudeln des Wasserbades 3 durch die Luftzufuhr erhöht die Kontaktflächen und intensiviert die Sättigung der luft. Die Umwälzung der Luft verbessert die Temperaturverteilung der Dampfkabine gegenüber der Strömung reiner Konvektion. Ausserdem wird durch die Umwälzung das zu Dampf gewordene Wasser in das Wasserbad 3 zurückgeführt. Somit arbeitet der vorliegende Dampferzeuger 1 im geschlossenen Kreislauf, gegenüber dem offenen System des Stands der Technik. Da die Verwendung von Wirkstoffen 5 als fakultative Massnahme gilt, wurde das Wasserbad 3 bewusst Wasserbad und nicht Flüssigkeitsbad genannt. Die Atmosphäre der Kabine wird als Luft bezeichnet, wobei die Sättigung und Uebersättigung der Luft naturgemäss auch als Dampf oder Dampf-Luft-Gemische genannt werden kann.The function of the steam generator includes the heater 3 IV , which is arranged in the form of a spiral resistance heater in the water bath 3. The size of the water bath 3 is kept small in order to bring the amount of the water bath 3 through the heater 3 IV as close as possible to the boiling point. The air supplied by the fan 4 is advantageously through an annular channel on the circumference of the water bath 3 and. of the comprehensive pipe 3 II initiated. The bubbling of the water bath 3 by the air supply increases the contact areas and intensifies the saturation of the air. The circulation of the air improves the temperature distribution of the steam cabin compared to the flow of pure convection. In addition, the water turned to steam is returned to the water bath 3 by the circulation. Thus, the present steam generator 1 works in a closed circuit compared to the open system of the prior art. Since the use of active ingredients 5 is considered an optional measure, the water bath 3 was deliberately called water bath and not liquid bath. The atmosphere of the cabin is referred to as air, whereby the saturation and supersaturation of the air can naturally also be called steam or steam-air mixtures.

Die Möglichkeiten der Anordnung des Dampferzeugers zeigen die Figuren 2 und 3. Dabei wird der in Figur 1 gezeigte Dampferzeuger 1 innerhalb einer Duschekabine 30 gezeigt. Wird aus irgendwelchen Gründen die Installation des Dampferzeugers 1 ausserhalb der Kabine gewünscht, so wird der Lufteintritt 21 und die Austrittsöffnung 22 mit je einem Winkelkanalstück so ergänzt, dass eine direkte Verbindung durch die Kabinenwand und den Dampferzeuger 1 entsteht. Ein Vorteil dieser Anordnung ist, dass sich alle elektrischen Installationen ausserhalb der Kabine befinden, und dadurch die Risiken des elektrischen Stromes für den Badbenützer zusätzlich gemindert werden. Es versteht sich, dass sich die Dampferzeuger einheitlicher Grösse gemäss der Erfindung als modulare Einheiten für die Ausstattung von Dampfkabinen oder Dampfbäder beliebiger Grösse eignen. So ist dank der Erfindung beispielsweise die Umrüstung oder Ergänzung einer Sauna finnischer Bauart zu einem "Türkenbad" ohne weiteres möglich.The possibilities of arranging the steam generator are shown in FIGS. 2 and 3. The steam generator 1 shown in FIG. 1 is shown inside a shower cabin 30. If, for any reason, the installation of the steam generator 1 outside the cabin is desired, the air inlet 21 and the outlet opening 22 are each supplemented with an angle duct piece so that a direct connection is created through the cabin wall and the steam generator 1. An advantage of this arrangement is that all electrical installations are outside the cabin, and thereby the risks of electrical Electricity for the bathroom user can also be reduced. It goes without saying that the steam generators of uniform size according to the invention are suitable as modular units for equipping steam cabins or steam baths of any size. Thanks to the invention, for example, the conversion or addition of a Finnish sauna to a "Turkish bath" is easily possible.

Claims (10)

1. Steam generator (1) for steam baths, characterized in that a column-shaped housing (2) has an electrically heatable water bath (3) acted upon by air in operation, so that the air surrounding the housing (2) is sucked through a ventilator (4) into the housing (2) and forced through the housing (2) and through the water bath (3).
2. Steam generator (1) for steam baths according to patent claim 1, characterized in that additives (5) are added to the water bath (3).
3. Steam generator for steam baths according to patent claims 1 and 2, characterized in that the additives (5) are supplied to the water bath (3) in a water-permeable additive container (6).
4. Steam generator (1) for steam baths according to patent claim 1, characterized in that the level (3I) of the water bath (3) is monitored by a level regulator (7) and the water quantity lacking is continuously made up.
5. Steam generator (1) for steam baths according to patent claims 1 and 4, characterized in that a water tank (8) is arranged in the container over the water bath (3).
6. Steam generator (1) for steam baths according to patent claim 1, characterized in that the steam (9) emerging from the water bath (3) is guided around the water bath (3) before emerging from the container.
7. Steam generator (1) for steam baths according to patent claim 1, characterized in that the column-shaped housing (2) has, in its plan view, two perpendicular sides (2I, 2II).
8. Steam generator (1) for steam baths according to patent claims 1 and 7, characterized in that the walls (2I, 2II) of the housing (2) contain means for the wall fastening.
9. Steam generator (1) for steam baths according to patent claim 1, characterized in that the walls of the housing (2) have inlet (21) and outlet (22) openings for the air and the air-steam mixture.
10. Steam generator (1) for steam baths according to patent claim 1, characterized in that the water bath (3) is equipped with a drain cock (10).
EP88810617A 1987-10-01 1988-09-12 Steam generator for baths Expired - Lifetime EP0310547B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810617T ATE70968T1 (en) 1987-10-01 1988-09-12 STEAM GENERATOR FOR STEAM BATHS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3831/87A CH674144A5 (en) 1987-10-01 1987-10-01
CH3831/87 1987-10-01

Publications (3)

Publication Number Publication Date
EP0310547A2 EP0310547A2 (en) 1989-04-05
EP0310547A3 EP0310547A3 (en) 1990-01-24
EP0310547B1 true EP0310547B1 (en) 1992-01-02

Family

ID=4264403

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88810617A Expired - Lifetime EP0310547B1 (en) 1987-10-01 1988-09-12 Steam generator for baths

Country Status (10)

Country Link
US (1) US4939343A (en)
EP (1) EP0310547B1 (en)
JP (1) JPH01118002A (en)
AT (1) ATE70968T1 (en)
CA (1) CA1287366C (en)
CH (1) CH674144A5 (en)
DE (1) DE3867406D1 (en)
DK (1) DK165816C (en)
ES (1) ES2029531T3 (en)
NO (1) NO172624C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19606346C2 (en) * 1996-02-21 1998-07-16 Sevri Sauna Fritz Seebauer Evaporator system for sauna systems
DE29716620U1 (en) * 1997-09-16 1997-11-13 Meier Hansjuergen Installable device for generating steam for a shower cubicle
GB2536254A (en) * 2015-03-10 2016-09-14 Maclean Int Ltd Methods and apparatus for providing steam containing essential oils associated with aromatherapy

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1601258A (en) * 1925-06-03 1926-09-28 Pajer Valentine Electric steamer
US2512892A (en) * 1944-10-11 1950-06-27 Forsberg Gote Ansgar Heating apparatus for hot-air or steam baths
US3337715A (en) * 1965-06-24 1967-08-22 Glenn Electric Heater Corp Electrically heated sauna stove
US3809374A (en) * 1969-06-11 1974-05-07 G Schossow Vaporizer-humidifier
US3864440A (en) * 1972-01-21 1975-02-04 Respiratory Care Humidifier and heater for delivered gas
US3806122A (en) * 1973-03-09 1974-04-23 S Jones Target disc, tethered ball & game initiating spinner
US3982095A (en) * 1973-10-04 1976-09-21 Searle Cardio-Pulmonary Systems Inc. Respiratory humidifier
CH598814A5 (en) * 1976-01-24 1978-05-12 Rolf Dannenmann Sauna cubicle heat source
US4112281A (en) * 1976-04-08 1978-09-05 The Raymond Lee Organization, Inc. Combined water heater and sauna room heater device
US4399349A (en) * 1981-03-30 1983-08-16 Clairol Inc. Electrically heated facial sauna appliance
CH630522A5 (en) * 1981-07-23 1982-06-30 Walter Hunziker Steam bath device
DE3404892A1 (en) * 1984-02-11 1985-08-14 Dannenmann, Gudrun, 7060 Schorndorf Sauna oven
US4566450A (en) * 1984-02-15 1986-01-28 Brossman Jr Harold A Device to discourage growth of respiratory viruses
LU86330A1 (en) * 1986-02-28 1987-09-10 Lepi Sa COMBINED STEAM GENERATOR / SAUNA HEATER

Also Published As

Publication number Publication date
DK165816C (en) 1993-06-21
ATE70968T1 (en) 1992-01-15
CH674144A5 (en) 1990-05-15
US4939343A (en) 1990-07-03
NO172624C (en) 1993-08-18
NO884369L (en) 1989-04-03
CA1287366C (en) 1991-08-06
DE3867406D1 (en) 1992-02-13
DK165816B (en) 1993-01-25
NO172624B (en) 1993-05-10
NO884369D0 (en) 1988-09-30
EP0310547A3 (en) 1990-01-24
DK542088D0 (en) 1988-09-29
ES2029531T3 (en) 1992-08-16
DK542088A (en) 1989-04-02
EP0310547A2 (en) 1989-04-05
JPH01118002A (en) 1989-05-10

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