EP0371295B1 - Elément chauffant radiant - Google Patents

Elément chauffant radiant Download PDF

Info

Publication number
EP0371295B1
EP0371295B1 EP89120765A EP89120765A EP0371295B1 EP 0371295 B1 EP0371295 B1 EP 0371295B1 EP 89120765 A EP89120765 A EP 89120765A EP 89120765 A EP89120765 A EP 89120765A EP 0371295 B1 EP0371295 B1 EP 0371295B1
Authority
EP
European Patent Office
Prior art keywords
damping
light
radiator
radiant element
switching device
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
EP89120765A
Other languages
German (de)
English (en)
Other versions
EP0371295A2 (fr
EP0371295A3 (fr
Inventor
Gerhard Goessler
Eugen Wilde
Rolf Seeburger
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.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
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 EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Publication of EP0371295A2 publication Critical patent/EP0371295A2/fr
Publication of EP0371295A3 publication Critical patent/EP0371295A3/fr
Application granted granted Critical
Publication of EP0371295B1 publication Critical patent/EP0371295B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/20—Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/72—Plates of sheet metal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits

Definitions

  • the invention relates to a radiant heater, in particular for glass ceramic hot plates, with an electric light emitter and at least one series resistor.
  • Radiant heaters of this type have become known, for example, from EP-A-176 027.
  • the light heater is an electrical heating resistor that is heated to a much higher temperature (above 1500 K and preferably above 2000 K) than the usual heating resistor coils that work at a temperature below 1500 K and are referred to below as dark lamps even though they also work in the field of red heat.
  • the light emitters are usually encapsulated in a protective gas atmosphere, for example in quartz glass bulbs or tubes and partially provided with means to counteract the evaporation of the material or to reverse it, for example by a halogen filling.
  • EP-A 176 027 therefore provides a series connection of a series resistor in the form of a dark radiator in front of the light radiator, which dampens the inrush current and supplements the power emitted by the light radiator during operation as a dark radiator.
  • the total installed power can also be divided between the light emitter and the dark emitter, which is particularly advantageous in the case of the arrangement of the light emitter in straight rods, which was customary hitherto, for filling the entire heated zone.
  • a radiant heater which contains a damping switching device.
  • two light emitters are provided, each of which has a separate series resistor and are connected in parallel with one another.
  • one of the two light emitters is only switched on by a delay circuit with a certain delay, so that the inrush current is reduced even further, apart from by the separate series resistors.
  • the object of the invention is to provide a radiant heater with a plurality of light emitters and a damping switching device which ensures a permissible inrush current for all light emitters with little effort in terms of resistance.
  • the damping switching device preferably switches on the series resistor during the heating phase of each of the light emitters and advantageously switches it off again automatically after the light emitter that has just been switched on is heated up. It can work depending on the voltage drop on the light source, which is due to the positive temperature coefficient after it warms up.
  • a threshold switching device which responds to the voltage drop can be provided here. This can consist of a relay, but is preferably designed as an electronic circuit that triggers when a certain voltage value is reached and causes a series resistor to be switched off.
  • the reactivation ie the signal which triggers the reactivation of the series resistor, can be triggered by completely switching off the voltage, for example by a special isolating switch.
  • the damping device can also consist of a delay circuit, i.e. a timer, because usually the heating phase of a radiant heater is quite short and is on the order of 1 to 2 seconds.
  • the series resistor can be a separate damping resistor, which is therefore switched off during further operation.
  • the resistor is not exposed to permanent loads, it can be subjected to quite a high load and can therefore be small and simple.
  • it should preferably be arranged in the region of the radiant heater so that the heat generated by it can be dissipated well on the one hand and can be used on the other.
  • the invention leads to a reduction in the inrush current to a permissible value in all types of radiant heaters which contain several light emitters, which without the measures of the invention can in some cases be ten times higher than the working current and also because of its short-term nature and its sudden occurrence would otherwise lead to impermissible network loads.
  • the radiation helper body is controlled or regulated by a clocking, for example by a regulator or switch operating in power cycles of different relative duty cycles.
  • FIGS. 1 to 7 are intended to support the invention realized in FIG. 8.
  • Fig. 1 shows a plan view of a radiant heater 11, which has a bowl-shaped insulation 12 in a sheet metal shell.
  • the edge 13 of this insulation is intended to be pressed onto the underside of a glass ceramic hotplate, so that the radiant heater 11 forms a circular heating zone on this glass ceramic plate.
  • a light radiator 15 is arranged, which has the shape of a circular tube comprising almost 360 °, the two ends of which are guided parallel to each other to the outside.
  • This tube which is made of quartz or quartz glass, is sealed at both ends 16 and provided with electrical connections 17, several times with one, not shown, lying in the tube supported heating coil are connected, which consists of tungsten or another highly heat-resistant electrical resistance material.
  • the light emitter can also be polygonal or have other shapes. In the example shown, it runs around the outer circumference of the heating zone and thus creates a circular area inside, which is partially covered with a dark radiator 18. As described in EP-A 176 027, to which reference is made here, this can consist of wire coils made of conventional resistance material, which are laid on the bottom of the insulation 12 by means of conventional fastening means in zigzag or spiral form.
  • Both radiant heaters 15 and 18 are arranged at a distance from the glass ceramic plate and the light radiator 15, possibly supported by it, is also at a distance from the insulation 12.
  • a rod-shaped temperature sensor 19 of a temperature limiter 20 runs diametrically over the entire heating zone 14.
  • a damping resistor 21 arranged in the area of the heating zone 14 is indicated in the schematic plan view according to FIG. 1.
  • This can be a resistor similar to a dark radiator 18, but with a higher load. With a relatively high resistance value in length, diameter and arrangement, it can therefore be dimensioned such that it would assume a temperature which was not itself beneficial to it in continuous operation.
  • the damping resistance can also be part of the heating or in the form of a conventional resistance heating element of the radiator.
  • damping resistors which have a different configuration are also suitable, for example band resistors, sheet resistors or the like.
  • damping resistor 21 assign a thermal mass to which it is connected in a heat-conducting manner and which derives the warming that occurs only intermittently on it and thus makes it more uniform.
  • An arrangement of a damping resistor outside the radiant heater is also possible.
  • FIG. 2 shows a circuit of the radiant heater according to FIG. 1.
  • the light radiator 15 is connected in series with the dark radiator 18 and this is additionally preceded by the damping resistor 21.
  • the voltage present on both sides of the light radiator 15 is monitored by a damping switching device 22, which is symbolized in the example shown as a voltage relay coil 23 with a switching contact 24 actuated thereby.
  • the damping device thus consists of the damping resistor 21 and the damping switching device 22.
  • the switching contact 24 can bridge the damping resistor 21 when it is closed.
  • the switching contact of the temperature limiter 20 and a clocking power control unit 27 are switched into one of the power supply lines 25, 26.
  • This is of the type as it is usually referred to as an "energy regulator” and has a switch contact 28 which is actuated in a continuously adjustable manner by a bimetal 29.
  • the bimetal is heated by a control heater 30 which is connected in parallel to the radiant heater.
  • the power control contact 28 is closed, as is the contact of the temperature limiter 20, while the contact 24 is open, because for the time being the voltage difference on both sides of the light radiator is small, since its internal resistance due to the cold filament is still very low.
  • the two upstream resistors 18 and 21 cause the inrush current in spite of the low resistance in the light emitter 15 remains limited to a permissible value.
  • the resistance increases by about a power of ten (usually 10 to 12 times), so that the voltage drop caused by it also increases and the damping switching device is effective is, for example, the relay coil 23 attracts and thereby closes the contact 24.
  • the arrangement works loss-free, since all the heat in the area of the radiant heater is released, and the damping is so short and so short that it hardly affects the effectiveness of the light radiator, which is designed to heat up quickly and emit radiant heat falls.
  • a mathematical example illustrates this: It is assumed that a radiant heater with a total output of 2200 W has a light source of 1100 W and a dark radiator of the same power, each based on the operating state.
  • the operating current at 220 V is 10 A and the resistance of the radiators is 11 ohms each, ie 22 ohms in series. While the temperature coefficient of resistance in the dark radiator is relatively low and is neglected for the purpose of this calculation, the high resistance temperature coefficient of the light radiator causes the resistance in the cold state to drop to a tenth to a twelfth, so that if one takes an average of 1 / 11, the cold resistance of the light radiator is only 1 ohm is.
  • FIG. 3 shows a circuit in which a light emitter 15 is connected in parallel with a dark emitter 18.
  • the light and dark emitters would each have a resistance of 44 ohms in the operating state, which would drop to 4 ohms in the cold state, so that the light emitter in the cold state has a current of 55 A equal to approx would draw 12 kW. Together with the dark radiator, this would be 13 kW, which would be highly inadmissible.
  • a damping resistance of, for example, 40 ohms would limit the total power to 10 A equal to 2200 W and would create approximately the same heating conditions as described with reference to FIG. 2.
  • the damping resistor 21 is therefore connected in series with the light emitter in the strand containing the light emitter, while the dark emitter is parallel to this strand.
  • the damping resistor 21 is in turn bridged by a damping switching device 22.
  • the use of a parallel connection of light and dark radiators can be advantageous because the resistance of the heating coil in the light radiator can be higher, which can lead to advantages in the production of the light radiator due to a thinner filament. The same applies to the dark radiator.
  • the response time until the full luminous intensity of the light source is reached can also be reduced.
  • a dot-and-dash circuit 31 is indicated, which can be used instead of the switching device 23 which responds to voltage on the light emitter and which closes the switching contact 24 which is open when the current is switched off only after a set time.
  • the usual heating time of up to approx. 2 seconds for the light emitter could be selected as such a time.
  • Such a delay switching device could be an electronic or thermal delay switch of a known type.
  • FIG. 4 shows a plan view of a two-circuit radiant heater which, with the structure similar to that of FIG. 1, has an inner heating zone 14a and an outer heating zone 14b which are delimited from one another by an intermediate edge 13a.
  • each heating zone there is a light radiator 15a, 15b and a dark radiator 18a, 18b.
  • the outer light emitter can be designed such that its ends 16 lie on both sides of the ends 16 of the inner light emitter 15a and the dark emitter 18b can be in the form of a possibly at the exits the light emitter has an interrupted circular ring.
  • the damping resistor 21 can be arranged at any point, in the example in the central heating zone 14a.
  • the circuit according to FIG. 5 shows that the series circuit of light emitter 15a and dark emitter 18a belonging to the central heating zone 14a is provided without a damping resistor, while the damping resistor 21 is assigned to the heating zone T4b and the heating resistor combination 15b, 18b is connected in series.
  • a damping device 22 of the type already described above switches the damping resistor 21 off by short-circuiting after the heating phase of the light radiator 15b.
  • the regulation or switching can be the same as that described with reference to FIG. 2.
  • an additional switch (not shown) is provided with which the inner heating zone, which is always in operation when the radiant heater is switched on, can be connected to the outer heating zone 14b as required.
  • the inner heating zone usually has a lower power, so that the damping through the series connection of the dark radiator 18a may be sufficient here, while the outer heating zone has a higher power and accordingly the damping resistance ensures a sufficiently low inrush current.
  • Fig. 6 shows a circuit of a two-circuit radiator body, in which only the inner heating zone 14a is assigned a dark radiator 18a in series with the light radiator 15a, while the outer heating zone 14b contains only one light radiator 15b, to which, however, a damping resistor 21, which is switched in the manner described, is assigned.
  • Fig. 7 shows an arrangement of the same type, but in which there is no separate damping resistor, but the dark radiator 18c of the inner heating zone 14a is connected upstream of the two bright radiators 15a and 15b when switched on.
  • An electronic damping circuit is indicated here as the damping circuit, which is preferred over a relay with a voltage coil because any fluttering phenomena in the switching range can be avoided with a correspondingly stable threshold value circuit.
  • Such electronic circuits are generally known. They can be designed in such a way that after a single response (exceeding the voltage threshold value) the device is only switched off again after the entire line has been disconnected from the power supply. This can be done with an additional switch, as shown in Fig. 8 with the reference numeral 35a. The function of this additional switch could also be taken over by the contact of the power control unit.
  • An electronic threshold value switching device 22 can also respond to criteria other than the voltage difference on the light radiator or the time.
  • the damping switching device belongs to the individual radiant heater, it is preferably arranged (except for the damping resistance) outside the radiant heater, for example at its outer or other locations on the cooking appliance.
  • the damping switching device is actuated 22 a contact 24 which is designed as a changeover contact and at the same time interrupts the line branch of the outer heating zone 14b when it switches the light radiator 15b on in the manner described in the line branch of the inner heating zone 14a.
  • FIG. 8 shows an embodiment in which there is only one damping resistor 21 in the case of two light emitters 15a, 15b, which is connected upstream of the two light emitters and can be bridged by a device 22 such as that described with reference to FIG. 7.
  • the power control takes place in turn with a clocking power control device 27, which, as already mentioned, can additionally actuate a contact 35a, which briefly de-energizes the entire circuit when the external heating circuit is switched on and thereby reactivates the threshold switch contained in the damping switching device. This shutdown could also be done by the manual switch 35.
  • the outer heating zone is switched on as required via the switch 33.
  • the electronic switching device 22 is thereby also effective when the light emitter 15b is connected to the light emitter 15a already in operation, so that the damping resistor 21 is then briefly switched on again. It is also advantageous that the damping device somewhat alleviates the optical effect of the light emitter, in particular also in clocked regulation.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Resistance Heating (AREA)
  • Electric Stoves And Ranges (AREA)
  • Control Of Resistance Heating (AREA)
  • Electric Ovens (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Bipolar Transistors (AREA)

Claims (9)

  1. Corps de chauffe radiant, notamment pour tables vitrocéramiques, comprenant plusieurs éléments radiants halogènes (15a, 15b) et une résistance additionnelle (21), comprenant également un élément logique d'affaiblissement (22) agissant par intermittence pour solliciter l'un des éléments radiants halogènes (15a), caractérisé en ce que l'élément logique d'affaiblissement (22) est un circuit pouvant être réactivé lorsque le second élément radiant halogène (15b) est mis en circuit, qui couple la résistance additionnelle (21) à l'élément radiant halogène pendant la phase de préchauffage de chacun des éléments radiants halogènes pouvant être mis en circuit indépendamment l'un de l'autre.
  2. Corps de chauffe radiant selon la revendication 1, caractérisé en ce que l'élément logique d'affaiblissement (22) coupe automatiquement la résistance additionnelle (21) après que l'un des éléments radiants halogènes (15a) a chauffé.
  3. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que l'élément logique d'affaiblissement (22) agit en fonction de la chute de tension au niveau de l'élément radiant halogène (15a) et comporte notamment un élément logique de valeur seuil réagissant à la chute de tension.
  4. Corps de chauffe radiant selon la revendication 3, caractérisé en ce que l'élément logique de valeur seuil est un circuit de préférence électronique qui se déclenche lorsque qu'une tension de consigne est atteinte, et dont la capacité à être réactivé s'effectue en coupant la tension, et, à cet effet, un interrupteur séparateur (35) est prévu pour le corps de chauffe radiant (11) notamment dans un organe logique ou de régulation.
  5. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que le dispositif d'affaiblissement comporte un circuit de temporisation.
  6. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que la résistance additionnelle est une résistance d'affaiblissement séparée (21) qui est placée de préférence dans la zone du corps de chauffe radiant (11).
  7. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que la résistance additionnelle est mise en circuit en amont d'un élément radiant obscur (18) qui est, le cas échéant, monté en série en permanence avec un élément radiant halogène (15a) et/ou est constituée par l'élément radiant obscur (18).
  8. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que l'élément d'affaiblissement est actif lors de chaque procédure d'allumage de l'élément radiant halogène (15), notamment également lors de chaque impulsion fournie par un appareil de commande de la puissance (27) à impulsions et/ou par le contrôleur de température (20).
  9. Corps de chauffe radiant selon l'une des revendications précédentes, caractérisé en ce que, dans le cas d'un corps de chauffe radiant (11) comportant plusieurs éléments radiants halogènes (15, 15b) qui sont de préférence disposés dans différentes zones de chauffage (14a, 14b), une ou plusieurs résistances additionnelles (18, 21) peuvent être mises en circuit en amont d'un élément radiant halogène individuel et/ou des deux éléments radiants halogènes (15a, 15b), au choix, sachant notamment qu'un élément radiant obscur monté en série avec un élément radiant halogène (15a) et associé, par exemple, à une zone de chauffage intérieure (14a) peut en outre être éventuellement mis en circuit par le biais de l'élément logique d'affaiblissement, pendant la phase de préchauffage, en tant que résistance d'affaiblissement, en amont d'un élément radiant halogène (15b) d'une zone de chauffage (14b) située, par exemple, à l'extérieur.
EP89120765A 1988-11-30 1989-11-09 Elément chauffant radiant Expired - Lifetime EP0371295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3840360A DE3840360A1 (de) 1988-11-30 1988-11-30 Strahlungs-heizkoerper
DE3840360 1988-11-30

Publications (3)

Publication Number Publication Date
EP0371295A2 EP0371295A2 (fr) 1990-06-06
EP0371295A3 EP0371295A3 (fr) 1991-08-21
EP0371295B1 true EP0371295B1 (fr) 1996-01-17

Family

ID=6368176

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89120765A Expired - Lifetime EP0371295B1 (fr) 1988-11-30 1989-11-09 Elément chauffant radiant

Country Status (9)

Country Link
US (1) US5004892A (fr)
EP (1) EP0371295B1 (fr)
JP (1) JPH02189884A (fr)
KR (1) KR900008348A (fr)
AT (1) ATE133311T1 (fr)
AU (1) AU626943B2 (fr)
DE (2) DE3840360A1 (fr)
ES (1) ES2081828T3 (fr)
YU (1) YU224189A (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4002322A1 (de) * 1990-01-26 1991-08-01 Bosch Siemens Hausgeraete Kochfeld
FR2669803B1 (fr) * 1990-11-27 1993-09-24 Atlantic Ste Fse Developp Ther Dispositif de chauffage, notamment emetteur d'infra-rouge.
ES2049180B1 (es) * 1992-09-17 1996-11-01 Eika S Coop Ltda Mejoras en calefactores radiantes.
DE4441204A1 (de) * 1994-11-19 1996-05-23 Ego Elektro Blanc & Fischer Strahlheizkörper
GB2307629B (en) * 1995-11-20 2001-01-10 Strix Ltd Electric heaters
KR20040077211A (ko) * 2003-02-28 2004-09-04 삼성전자주식회사 표시 장치용 광원의 구동 장치
FI20070868L (fi) * 2007-11-15 2009-05-16 Uponor Innovation Ab Pinnan alaisen lämmityksen/jäähdytyksen säätäminen
JP4620164B1 (ja) * 2009-07-15 2011-01-26 日本調理機株式会社 電気回転釜
EP2315493B1 (fr) * 2009-10-21 2017-05-10 Mahle Behr France Rouffach S.A.S Dispositif de chauffage notamment pour une climatisation de véhicule automobile
US11098923B2 (en) * 2016-03-31 2021-08-24 Gd Midea Environment Appliances Mfg Co., Ltd. Electric radiator

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4421993A (en) * 1982-05-28 1983-12-20 General Electric Company Load resistance control circuitry
US4523429A (en) * 1983-04-01 1985-06-18 Rca Corporation Cold start surge current limiting system for a hydrazine thruster augmentation heater
GB8412339D0 (en) * 1984-05-15 1984-06-20 Thorn Emi Domestic Appliances Heating apparatus
US4700051A (en) * 1984-09-22 1987-10-13 E.G.O. Elektro-Gerate Blanc U. Fischer Radiant heater for cooking appliances
DE3503648C2 (de) * 1984-09-22 1994-08-11 Ego Elektro Blanc & Fischer Strahlheizkörper für Kochgeräte
DE3437726A1 (de) * 1984-10-15 1986-04-17 Bosch Siemens Hausgeraete Heizeinrichtung
DE3516788A1 (de) * 1985-05-09 1986-11-13 Bosch-Siemens Hausgeräte GmbH, 8000 München Strahlungsheizeinrichtung fuer kochgeraete, insbesondere fuer glaskeramik-kochmulden
GB8514785D0 (en) * 1985-06-11 1985-07-10 Micropore International Ltd Infra-red heaters
DE3526892A1 (de) * 1985-07-26 1987-02-05 Bosch Siemens Hausgeraete Anordnung zum anschalten von heizstrahlerkombinationen
GB8527683D0 (en) * 1985-11-09 1985-12-11 Thorn Emi Appliances Control circuit
GB8602507D0 (en) * 1986-02-01 1986-03-05 Micropore International Ltd Electric radiation heater
DE3726535A1 (de) * 1987-08-10 1989-02-23 Philips Patentverwaltung Verfahren zur schaltstossarmen leistungssteuerung elektrischer lasten

Also Published As

Publication number Publication date
AU626943B2 (en) 1992-08-13
JPH02189884A (ja) 1990-07-25
KR900008348A (ko) 1990-06-04
DE58909575D1 (de) 1996-02-29
EP0371295A2 (fr) 1990-06-06
ATE133311T1 (de) 1996-02-15
ES2081828T3 (es) 1996-03-16
EP0371295A3 (fr) 1991-08-21
US5004892A (en) 1991-04-02
YU224189A (sh) 1992-09-07
DE3840360A1 (de) 1990-05-31
AU4549889A (en) 1990-06-07

Similar Documents

Publication Publication Date Title
EP0103741B1 (fr) Elément chauffant, en particulier élément chauffant radiant pour le chauffage de plaques en céramique
EP0250880B1 (fr) Corps de chauffage à rayonnement
EP0176027B1 (fr) Elément chauffant à rayons pour appareils de cuisson
DE3586504T2 (de) Heizgeraet.
EP0531987B2 (fr) Dispositif de chauffage électrique
DE3687432T2 (de) Infrarotheizgeraete.
EP1466347B1 (fr) Lampe uv a mercure a basse pression dopee par amalgame
CH654966A5 (de) Elektrischer kochherd.
EP0371295B1 (fr) Elément chauffant radiant
DD253137A5 (de) Glaskeramik-kochfeld mit heizkoerpern mit in der anheizphase schnell gluehenden heizleitern
EP0265635B1 (fr) Elément chauffant à radiation
DE2500586C2 (fr)
CH653509A5 (de) Elektrischer strahlungsheizkoerper.
DE3503648C2 (de) Strahlheizkörper für Kochgeräte
DE3613902A1 (de) Kochplatte, insbesondere fuer grosskuechen-herde
AT402248B (de) Elektrische strahlungsheizeinheiten für die verwendung in kochgeräten mit glaskeramikkochflächen
DE68925579T2 (de) Elektrisches Kochgerät
EP1448024A2 (fr) Equipement du chauffage avec deux domaines
DE3314501A1 (de) Heizelement, insbesondere strahlungs-heizelement fuer die beheizung von glaskeramikplatten
EP1299678B2 (fr) Four
EP1299677B1 (fr) Four
EP0288916A2 (fr) Dispositif de chauffage d'un four de cuisson
DE3108640A1 (de) Meldeeinrichtung zur anzeige des temperaturzustandes von kochgeraeten
DE8427940U1 (de) Strahlheizkörper für Küchengeräte
DE836513C (de) Anlasswiderstandsanordnung, insbesondere fuer Allstrom-Rundfunkempfangsgeraete

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

Kind code of ref document: A2

Designated state(s): AT CH DE ES FR GB GR IT LI SE

17P Request for examination filed

Effective date: 19901217

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT CH DE ES FR GB GR IT LI SE

17Q First examination report despatched

Effective date: 19930511

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: E.G.O. ELEKTRO-GERAETE BLANC UND FISCHER GMBH & CO

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT CH DE ES FR GB GR IT LI SE

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

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19960117

REF Corresponds to:

Ref document number: 133311

Country of ref document: AT

Date of ref document: 19960215

Kind code of ref document: T

REF Corresponds to:

Ref document number: 58909575

Country of ref document: DE

Date of ref document: 19960229

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2081828

Country of ref document: ES

Kind code of ref document: T3

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19960305

ITF It: translation for a ep patent filed

Owner name: MODIANO & ASSOCIATI S.R.L.

ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19961109

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

Ref country code: SE

Effective date: 19961110

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

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

Ref country code: LI

Effective date: 19961130

Ref country code: CH

Effective date: 19961130

26N No opposition filed
EUG Se: european patent has lapsed

Ref document number: 89120765.6

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

Ref country code: GB

Payment date: 19971103

Year of fee payment: 9

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

Ref country code: FR

Payment date: 19971117

Year of fee payment: 9

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

Ref country code: ES

Payment date: 19971127

Year of fee payment: 9

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

Ref country code: DE

Payment date: 19980120

Year of fee payment: 9

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

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19981109

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

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 19981110

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

Effective date: 19981109

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

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990730

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

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

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19990901

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20010301

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

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20051109

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: TROESCH SCHEIDEGGER WERNER AG