EP0517703B1 - Gas-operated hair care appliance with at least two vaporizers - Google Patents
Gas-operated hair care appliance with at least two vaporizers Download PDFInfo
- Publication number
- EP0517703B1 EP0517703B1 EP91901283A EP91901283A EP0517703B1 EP 0517703 B1 EP0517703 B1 EP 0517703B1 EP 91901283 A EP91901283 A EP 91901283A EP 91901283 A EP91901283 A EP 91901283A EP 0517703 B1 EP0517703 B1 EP 0517703B1
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- European Patent Office
- Prior art keywords
- gas
- appliance
- heating
- phase
- intermediate container
- 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
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Classifications
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D1/00—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor
- A45D1/02—Curling-tongs, i.e. tongs for use when hot; Curling-irons, i.e. irons for use when hot; Accessories therefor with means for internal heating, e.g. by liquid fuel
Definitions
- the invention relates to a gas powered; Hair care device with at least two evaporators.
- EP 0 420 768 A1 describes a gas-operated device with a container for holding liquefied gas, in which the gas supply is determined by connecting at least two throttles in series and an intermediate container of a predetermined volume is arranged between the throttles, the second throttle in the flow direction has approximately the same or higher permeability as the first throttle and the volume of the intermediate container is determined by the duration of the heating phase.
- this device is not operated by the catalytic combustion of a fuel-air mixture.
- a gas-heated curling iron with a bimetallic temperature controller which controls a corresponding valve and thereby ensures that more gas is made available to the burner in a shorter time unit than when the desired one has been reached Operating temperature is required.
- temperature regulators work satisfactorily, they are complex and expensive. Since the heating power is designed for the heating phase, the devices usually require additional overtemperature protection, which also makes them more expensive.
- the two throttles of this known device are not particularly important with regard to controlling the gas supply. The control of the gas supply is currently being carried out by the temperature controller.
- the object of the invention is to reduce the heating-up time of the devices mentioned at the outset and to avoid overheating of the device using simple structural means without temperature control. This object is achieved by a device with the features of claim 1.
- This measure allows more gas to be made available to the burner in the same time unit in the start-up phase or in the heating-up phase of the device than is required after the operating temperature of the heater has been reached.
- the burner is supplied with fuel in the desired manner without the need for regulating or control means and the temperature profile in the starting phase is controlled without a temperature controller in such a way that the burner has reached its operating temperature after a very short time.
- the gas supply is no longer essentially determined by the first throttle for high gas throughput, but rather by connecting the at least two or even more throttles in series.
- the volume of the intermediate container is determined by the duration of the heating phase, the flow rate of the gas being determined by the permeability of the two throttles.
- the permeability of the second choke is equal to or higher than that of the first choke.
- Such a device can be used in particular in devices which are operated with catalytic combustion and in which a constant temperature or a constant heating output is desired.
- the two throttles are designed as evaporators, the first evaporator at the outlet opening of the first container and the second evaporator at the outlet opening of the intermediate container connected.
- the intermediate container is dimensioned in such a way that, before use of the device, approximately the amount of liquefied petroleum gas required to deliver the required heat output during the heating phase accumulates in it.
- the second evaporator is provided between the intermediate container and a nozzle to which the heater is connected. Before the start-up phase, liquefied petroleum gas can accumulate in the intermediate container until there is approximately the same pressure level in both containers.
- 1 denotes a container of a device for personal use, not shown in the drawing for the sake of simplicity, which can be, for example, a gas curling iron with a gas-operated burner for a heater.
- the container 1 serves to hold liquid gas, which is fed via a first evaporator 2 in a line 4 to an intermediate container 3 with a smaller capacity.
- An outlet opening 9 of the intermediate container 3 can be closed via a closure device or a valve 7. If the device is not in use, the outlet opening 9 is closed by means of the valve 7.
- the gas accumulated in liquid or gaseous form in the intermediate container 3 cannot flow out to a downstream burner, which is used to operate a heater, not shown.
- a burner has already been described in detail in US Pat. No. 4,354,482, the disclosure of which is part of this application by express reference.
- a line 10 connects to the outlet opening 9 of the intermediate container 3, in which a second evaporator 5 is provided, the flow rate of which is preferably approximately equal to or greater than the flow rate of the first evaporator 2.
- a nozzle 6 is located behind the evaporator 5 a burner can be supplied with fuel in gaseous form, which in turn operates a heater. It is also readily possible to arrange the valve 7 downstream of the evaporator 5 without leaving the scope of the invention.
- heating has to be started with a higher output. This is advantageously achieved by providing the burner with more fuel in a short time unit in the heating-up phase than is required after the operating temperature has been reached.
- the fuel consumption of a burner with regulated fuel supply results in the heating phase from the course of curve D in phase I according to FIG. 3.
- the heating power is designed for the heating-up phase.
- the heating power must be reduced by means of a temperature controller or a control, since otherwise the temperature would exceed the permissible level (see curve C in FIG. 2). Operation with constant heating output is shown by curve A.
- the intermediate container 3 with an additional storage volume is provided behind the first evaporator 2 and accumulates fuel in front of the valve 7 until it is opened. If the valve 7 is opened during start-up, then the second evaporator 5 essentially determines the flow rate of the fuel from the nozzle 6 (see phase I in FIG. 3). The second evaporator 5 determines the flow rate until the intermediate container 3 no longer contains liquid gas (see phase II). In phase II, the pressure in the intermediate container 3 gradually drops, as a result of which the amount of fuel emerging from the nozzle 6 is reduced. In phase III the flow rate then arises, which corresponds to the series connection of the flow resistances of the two evaporators 2, 5. In phase III, the temperature and also the amount of fuel flowing out of the nozzle 6 remain essentially constant. With the additional capacity from the intermediate container 3, a faster reaching of the target temperature can thus be achieved without the need for complex and thus expensive temperature control or additional temperature control.
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- Feeding And Controlling Fuel (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Cosmetics (AREA)
Abstract
Description
Die Erfindung betrifft ein gasbetriebene; Haarpflegerät mit wenigstens zwei Verdampfern.The invention relates to a gas powered; Hair care device with at least two evaporators.
In der nichtvorveröffentlichten, älteren Anmeldung EP 0 420 768 A1 ist ein gasbetriebenes Gerät mit einem Behälter zur Aufnahme von verflüssigtem Gas beschrieben, bei dem die Gaszufuhr durch eine Hintereinanderschaltung von wenigstens zwei Drosseln bestimmt wird und zwischen den Drosseln ein Zwischenbehälter eines vorgegebenen Volumens angeordnet ist, die in Strömungsrichtung zweite Drossel eine in etwa gleiche oder höhere Durchlässigkeit aufweist als die erste Drossel und das Volumen des Zwischenbehälters durch die Dauer der Aufheizphase festgelegt wird. Dieses Gerät wird allerdings nicht durch katalytische Verbrennung eines Brennstoff-Luft-Gemisches betrieben.In the unpublished, older application EP 0 420 768 A1 describes a gas-operated device with a container for holding liquefied gas, in which the gas supply is determined by connecting at least two throttles in series and an intermediate container of a predetermined volume is arranged between the throttles, the second throttle in the flow direction has approximately the same or higher permeability as the first throttle and the volume of the intermediate container is determined by the duration of the heating phase. However, this device is not operated by the catalytic combustion of a fuel-air mixture.
Desweiteren ist aus der US 4 354 482 A bereits ein gasbeheizter Lockenstab mit einem Bimetall-Temperaturregler bekannt, der ein entsprechendes Ventil steuert und dadurch sichergestellt, daß in der Aufheizphase dem Brenner in kürzerer Zeiteinheit mehr Gas zur Verfügung gestellt wird, als nach Erreichung der gewünschten Betriebstemperatur erforderlich ist. Derartige Temperaturregler arbeiten zwar zufriedenstellend, sind jedoch aufwendig und teuer. Da die Heizleistung für die Aufheizphase ausgelegt ist, benötigen die Geräte in der Regel zusätzlich einen Übertemperaturschutz, der sie ebenfalls verteuert. Eine besondere Bedeutung hinsichtlich einer Steuerung der Gaszufuhr kommt den beiden Drosseln dieses bekannten Gerätes nicht zu. Die Steuerung der Gaszufuhr wird gerade durch den Temperaturregler bewerkstelligt.Furthermore, from US 4,354,482 A, a gas-heated curling iron with a bimetallic temperature controller is known, which controls a corresponding valve and thereby ensures that more gas is made available to the burner in a shorter time unit than when the desired one has been reached Operating temperature is required. Although such temperature regulators work satisfactorily, they are complex and expensive. Since the heating power is designed for the heating phase, the devices usually require additional overtemperature protection, which also makes them more expensive. The two throttles of this known device are not particularly important with regard to controlling the gas supply. The control of the gas supply is currently being carried out by the temperature controller.
Der Erfindung liegt die Aufgabe zugrunde mit einfachen baulichen Mitteln ohne eine Temperaturregelung die Aufheizzeitdauer der eingangs erwähnten Geräte zu verkürzen und eine Überhitzung des Gerätes zu vermeiden. Diese Aufgabe wird durch ein Gerät mit den Merkmalen des Anspruchs 1 gelöst.The object of the invention is to reduce the heating-up time of the devices mentioned at the outset and to avoid overheating of the device using simple structural means without temperature control. This object is achieved by a device with the features of claim 1.
Durch diese Maßnahme kann in der Startphase bzw. in der Aufheizphase des Gerätes dem Brenner in der gleichen Zeiteinheit mehr Gas zur Verfügung gestellt werden, als nach Erreichen der Betriebstemperatur der Heizung erforderlich ist. Auf diese Weise wird der Brenner ohne Aufwand an Regel- oder Steuermitteln in der gewünschten Weise mit Brennstoff versorgt und der Temperaturverlauf in der Startphase ohne Temperaturregler derart gesteuert, daß der Brenner nach sehr kurzer Zeit seine Betriebstemperatur erreicht hat. Hat der Brenner seine Betriebstemperatur bzw. seine Solltemperatur erreicht, wird die Gaszufuhr nicht mehr im wesentlichen durch die erste Drossel für großen Gasdurchsatz, sondern über eine Hintereinanderschaltung der wenigstens zwei oder auch mehr Drosseln bestimmt. Das Volumen des Zwischenbehälters wird durch die Dauer der Aufheizphase festgelegt, wobei die Durchflußmenge des Gases von der Durchlässigkeit der beiden Drosseln bestimmt wird. Die Durchlässigkeit der zweiten Drossel ist gleich oder höher als die der ersten Drossel.This measure allows more gas to be made available to the burner in the same time unit in the start-up phase or in the heating-up phase of the device than is required after the operating temperature of the heater has been reached. In this way, the burner is supplied with fuel in the desired manner without the need for regulating or control means and the temperature profile in the starting phase is controlled without a temperature controller in such a way that the burner has reached its operating temperature after a very short time. When the burner has reached its operating temperature or its target temperature, the gas supply is no longer essentially determined by the first throttle for high gas throughput, but rather by connecting the at least two or even more throttles in series. The volume of the intermediate container is determined by the duration of the heating phase, the flow rate of the gas being determined by the permeability of the two throttles. The permeability of the second choke is equal to or higher than that of the first choke.
Eine derartige Einrichtung läßt sich insbesondere bei solchen Geräten einsetzen, die mit katalytischer Verbrennung betrieben werden und bei denen eine konstante Temperatur bzw. eine konstante Heizleistung gewünscht wird. Hierzu ist es vorteilhaft, daß die beiden Drosseln als Verdampfer ausgebildet sind, wobei der erste Verdampfer an die Auslaßöffnung des ersten Behälters und der zweite Verdampfer an die Auslaßöffnung des Zwischenbehälters angeschlossen ist. Der Zwischenbehälter ist dabei so dimensioniert, daß sich in ihm vor der Benutzung des Geräts in etwa diejenige Flüssiggasmenge ansammelt, die zur Abgabe der erforderlichen Wärmeleistung während der Aufheizphase erforderlich ist. Außerdem ist es vorteilhaft, daß der zweite Verdampfer zwischen dem Zwischenbehälter und einer Düse vorgesehen ist, an die sich die Heizung anschließt. Vor der Startphase kann sich in dem Zwischenbehälter Flüssiggas ansammeln, bis in beiden Behältern ein in etwa gleiches Druckniveau herrscht. Nach Öffnen der Verschlußeinrichtung kann aus dem Zwischenbehälter in relativ kurzer Zeit eine große Gasmenge zum Brenner der Heizung abfließen, wobei zusätzlich aus dem ersten Behälter Brennstoff aufgrund der entstehenden Druckdifferenz zwischen den Behältern nachfließt. Sobald der Beharrungszustand erreicht worden ist und die Heizung ihre Betriebstemperatur erreicht hat, stellt sich ein Gasdurchfluß ein, der dem Strömungswiderstand der Hintereinanderschaltung beider Verdampfer entspricht.Such a device can be used in particular in devices which are operated with catalytic combustion and in which a constant temperature or a constant heating output is desired. For this purpose, it is advantageous that the two throttles are designed as evaporators, the first evaporator at the outlet opening of the first container and the second evaporator at the outlet opening of the intermediate container connected. The intermediate container is dimensioned in such a way that, before use of the device, approximately the amount of liquefied petroleum gas required to deliver the required heat output during the heating phase accumulates in it. It is also advantageous that the second evaporator is provided between the intermediate container and a nozzle to which the heater is connected. Before the start-up phase, liquefied petroleum gas can accumulate in the intermediate container until there is approximately the same pressure level in both containers. After opening the closure device, a large amount of gas can be used to burn the heater from the intermediate container in a relatively short time drain off, in addition fuel flows from the first container due to the pressure difference between the containers. As soon as the steady state has been reached and the heating has reached its operating temperature, a gas flow is established which corresponds to the flow resistance of the series connection of both evaporators.
Die Dimensionierung der Durchlässigkeit der Verdampfer und des Volumens des Zwischenbehälters wird durch die Dauer der Aufheizphase und die erforderliche Wärmeleistung bestimmt. Weitere Vorteile ergeben sich aus der nachfolgenden Beschreibung und den Zeichnungen, in denen ein bevorzugtes Ausführungsbeispiel dargestellt ist. Es zeigen:
- Fig. 1
- eine schematische Darstellung der Behälter für den Brennstoff, wobei der Zwischenbehälter zwischen zwei Verdampfern angeordnet ist,
- Fig. 2
- einen Temperaturverlauf über die Aufheizzeit einer gasbetriebenen Heizung,
- Fig. 3
- den Brennstoffverbrauch des gasbetriebenen Brenners in der Aufheizphase der Heizung und nach Erreichung der Betriebstemperatur.
- Fig. 1
- 2 shows a schematic representation of the containers for the fuel, the intermediate container being arranged between two evaporators,
- Fig. 2
- a temperature curve over the heating-up time of a gas-powered heating,
- Fig. 3
- the fuel consumption of the gas-powered burner in the heating phase of the heating and after reaching the operating temperature.
In der Zeichnung ist mit 1 ein Behälter eines in der Zeichnung der Einfachheit halber nicht dargestellten Gerätes für den persönlichen Bedarf bezeichnet, das beispielsweise ein Gaslockenstab mit einem gasbetriebenen Brenner für eine Heizung sein kann. Der Behälter 1 dient zur Aufnahme von Flüssiggas, das über einen ersten Verdampfer 2 in einer Leitung 4 einem Zwischenbehälter 3 mit kleinerem Fassungsvermögen zugeführt wird. Eine Auslaßöffnung 9 des Zwischenbehälters 3 ist über eine Verschlußeinrichtung bzw. ein Ventil 7 verschließbar. Befindet sich das Gerät nicht im Arbeitseinsatz, so ist die Auslaßöffnung 9 mittels des Ventils 7 verschlossen. Das in dem Zwischenbehälter 3 in flüssiger bzw. in gasförmiger Form angesammelte Gas kann nicht zu einem nachgeschalteten Brenner abfließen, der zum Betrieb einer nicht dargestellten Heizung dient. Ein derartiger Brenner ist bereits im Detail in der US-A 4 354 482 beschrieben, deren Offenbarungsgehalt durch ausdrücklichen Hinweis Bestandteil dieser Anmeldung ist.In the drawing, 1 denotes a container of a device for personal use, not shown in the drawing for the sake of simplicity, which can be, for example, a gas curling iron with a gas-operated burner for a heater. The container 1 serves to hold liquid gas, which is fed via a first evaporator 2 in a line 4 to an intermediate container 3 with a smaller capacity. An outlet opening 9 of the intermediate container 3 can be closed via a closure device or a valve 7. If the device is not in use, the outlet opening 9 is closed by means of the valve 7. The gas accumulated in liquid or gaseous form in the intermediate container 3 cannot flow out to a downstream burner, which is used to operate a heater, not shown. Such a burner has already been described in detail in US Pat. No. 4,354,482, the disclosure of which is part of this application by express reference.
An die Auslaßöffnung 9 des Zwischenbehälters 3 schließt sich eine Leitung 10 an, in der ein zweiter Verdampfer 5 vorgesehen ist, dessen Durchflußrate vorzugsweise in etwa gleich oder größer ist als die Durchflußrate des ersten Verdampfers 2. Hinter dem Verdampfer 5 sitzt eine Düse 6, über die ein Brenner mit Brennstoff in gasförmiger Form versorgt werden kann, der wiederum eine Heizung betreibt. Es ist auch ohne weiteres möglich, das Ventil 7 stromabwärts des Verdampfers 5 anzuordnen, ohne den Rahmen der Erfindung zu verlassen.A
Um eine kurze Aufheizzeit zu erzielen, muß anfangs mit einer höheren Leistung geheizt werden. Dies wird in vorteilhafter Weise dadurch erreicht, daß in der Aufheizphase dem Brenner in kurzer Zeiteinheit mehr Brennstoff zur Verfügung gestellt wird, als nach Erreichung der Betriebstemperatur erforderlich ist. Der Brennstoffverbrauch eines Brenners mit geregelter Brennstoffversorgung ergibt sich in der Aufheizphase aus dem Verlauf der Kurve D in der Phase I gemäß Fig.3.In order to achieve a short heating-up time, heating has to be started with a higher output. This is advantageously achieved by providing the burner with more fuel in a short time unit in the heating-up phase than is required after the operating temperature has been reached. The fuel consumption of a burner with regulated fuel supply results in the heating phase from the course of curve D in phase I according to FIG. 3.
Wenn die Heizleistung auf die Anforderung im Beharrungszustand einer zu beheizenden Fläche ausgelegt wird, steigt die Temperatur nach einer Übergangsfunktion gemäß folgender Formel:
V ist ein Verstärkungsfaktor, T entspricht der Zeitkonstante und t gibt die Zeitkoordinate wieder. Hieraus folgt für den Aufheizvorgang mit konstanter Heizleistung, daß nach der Zeit 
V is a gain factor, T corresponds to the time constant and t represents the time coordinate. This follows for the heating process with constant heat output that after time
Um also eine kurze Aufheizphase zu erzielen, wird die Heizleistung für die Aufheizphase ausgelegt. Bei herkömmlichen Geräten muß die Heizleistung mittels eines Temperaturreglers oder einer Steuerung reduziert werden, da sonst die Temperatur über das zulässige Maß hinaussteigen würde (vergl. Kurve C in Fig. 2). Der Betrieb bei konstanter Heizleistung ist durch den Kurvenverlauf A wiedergegeben.In order to achieve a short heating-up phase, the heating power is designed for the heating-up phase. In conventional devices, the heating power must be reduced by means of a temperature controller or a control, since otherwise the temperature would exceed the permissible level (see curve C in FIG. 2). Operation with constant heating output is shown by curve A.
Um einen Temperaturverlauf gemäß der Kurve B ohne aufwendigen Steuer- oder Regelaufwand zu erzielen, ist hinter dem ersten Verdampfer 2 der Zwischenbehälter 3 mit einem zusätzlichen Speichervolumen vorgesehen, der vor dem Ventil 7, bis es geöffnet wird, Brennstoff ansammelt. Wird bei Inbetriebnahme das Ventil 7 geöffnet, dann bestimmt im wesentlichen der zweite Verdampfer 5 die Durchflußmenge des Brennstoffes aus der Düse 6 (vergl. Phase I in Fig. 3). Der zweite Verdampfer 5 bestimmt so lange die Durchflußmenge, bis der Zwischenbehälter 3 kein Flüssiggas mehr enthält (siehe Phase II). In der Phase II sinkt der Druck im Zwischenbehälter 3 allmählich ab, wodurch sich die aus der Düse 6 austretende Brennstoffmenge verringert. In der Phase III stellt sich dann der Durchfluß ein, der der Hintereinanderschaltung der Strömungswiderstände der beiden Verdampfer 2, 5 entspricht. In der Phase III bleibt die Temperatur und auch die aus der Düse 6 strömende Brennstoffmenge im wesentlichen konstant. Mit dem zusätzlichen Fassungsvermögen aus dem Zwischenbehälter 3 kann also ein schnelleres Erreichen der Solltemperatur erzielt werden, ohne daß eine aufwendige und somit teuere Temperaturregelung bzw. zusätzliche Temperatursteuerung eingesetzt werden müßte.In order to achieve a temperature profile according to curve B without complex control effort, the intermediate container 3 with an additional storage volume is provided behind the first evaporator 2 and accumulates fuel in front of the valve 7 until it is opened. If the valve 7 is opened during start-up, then the second evaporator 5 essentially determines the flow rate of the fuel from the nozzle 6 (see phase I in FIG. 3). The second evaporator 5 determines the flow rate until the intermediate container 3 no longer contains liquid gas (see phase II). In phase II, the pressure in the intermediate container 3 gradually drops, as a result of which the amount of fuel emerging from the nozzle 6 is reduced. In phase III the flow rate then arises, which corresponds to the series connection of the flow resistances of the two evaporators 2, 5. In phase III, the temperature and also the amount of fuel flowing out of the nozzle 6 remain essentially constant. With the additional capacity from the intermediate container 3, a faster reaching of the target temperature can thus be achieved without the need for complex and thus expensive temperature control or additional temperature control.
Die Wahl der einzusetzenden Materialien für die Verdampfer und Behälter ist aus dem Stand der Technik zum Beispiel für Gasfeuerzeuge bekannt. Der Fachmann ist somit in die Lage versetzt, eine entsprechende Auswahl zu treffen. Es können auch mehrere Verdampfer mit entsprechenden Zwischenbehältern hintereinandergeschaltet werden, um eine exaktere Anpassung an die speziellen Bedürfnisse zu gewährleisten. Hierdurch wird der Rahmen der Erfindung nicht verlassen.The choice of the materials to be used for the evaporators and containers is known from the prior art, for example for gas lighters. The person skilled in the art is thus able to make an appropriate selection. Several evaporators with corresponding intermediate containers can also be connected in series to ensure a more precise adaptation to special needs. This does not leave the scope of the invention.
Claims (7)
- An appliance for personal use, comprising a device for the catalytic combustion of a fuel-air mixture and a container (1) for receiving liquefied petroleum gas, in which the supply of gas is determined by a series connection of at least two throttle means (5, 2) and an intermediate container (3) of a predetermined volume is arranged between said throttle means (5, 2), with the permeability of the second throttle means (5), when viewed in the direction of flow, being approximately equal to, or greater than, that of the first throttle means (2), and the volume of said intermediate container (3) being determined by the duration of the heating cycle (phase I).
- An appliance as claimed in claim 1, characterized in that said two throttle means are configured as vaporizers (2, 5) in a manner known per se.
- An appliance as claimed in any one of the preceding claims, characterized in that an outlet opening (9) of said intermediate container (3) is adapted to be closed by a controllable closure device.
- An appliance as claimed in any one of the preceding claims, characterized in that the capacity of said intermediate container (3) corresponds approximately to the quantity of liquefied petroleum gas required for heating the heating means to a desired operating temperature.
- An appliance as claimed in any one of the preceding claims, characterized in that the permeability of the first vaporizer (2) is essentially determined by the amount of gas required during a stationary cycle (phase III).
- An appliance as claimed in any one of the preceding claims, characterized in that the permeability of the second vaporizer (5) is determined by the amount of fuel required during the heating cycle (phase I).
- An appliance as claimed in any one of the preceding claims, characterized by a series connection of several throttle means with containers being inserted therebetween.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4006135A DE4006135A1 (en) | 1990-02-27 | 1990-02-27 | GAS-POWERED HAIR CARE DEVICE WITH AT LEAST TWO EVAPORATORS |
| DE4006135 | 1990-02-27 | ||
| PCT/EP1990/002241 WO1991012746A1 (en) | 1990-02-27 | 1990-12-19 | Gas-operated hair car appliance with at least two vaporizers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0517703A1 EP0517703A1 (en) | 1992-12-16 |
| EP0517703B1 true EP0517703B1 (en) | 1994-10-19 |
Family
ID=6401056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91901283A Expired - Lifetime EP0517703B1 (en) | 1990-02-27 | 1990-12-19 | Gas-operated hair care appliance with at least two vaporizers |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0517703B1 (en) |
| AT (1) | ATE112942T1 (en) |
| DE (2) | DE4006135A1 (en) |
| WO (1) | WO1991012746A1 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4327752A (en) * | 1979-12-05 | 1982-05-04 | Braun, Aktiengesellschaft | Rotary ignition system for a catalytically heated curling device |
-
1990
- 1990-02-27 DE DE4006135A patent/DE4006135A1/en active Granted
- 1990-12-19 DE DE59007529T patent/DE59007529D1/en not_active Expired - Fee Related
- 1990-12-19 AT AT91901283T patent/ATE112942T1/en not_active IP Right Cessation
- 1990-12-19 EP EP91901283A patent/EP0517703B1/en not_active Expired - Lifetime
- 1990-12-19 WO PCT/EP1990/002241 patent/WO1991012746A1/en active IP Right Grant
Also Published As
| Publication number | Publication date |
|---|---|
| ATE112942T1 (en) | 1994-11-15 |
| DE4006135A1 (en) | 1991-09-05 |
| DE59007529D1 (en) | 1994-11-24 |
| WO1991012746A1 (en) | 1991-09-05 |
| DE4006135C2 (en) | 1991-12-12 |
| EP0517703A1 (en) | 1992-12-16 |
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