EP0552409A2 - Process and circuit for the operation of a backing oven with at least one electric heating device and one microwave device - Google Patents

Process and circuit for the operation of a backing oven with at least one electric heating device and one microwave device Download PDF

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Publication number
EP0552409A2
EP0552409A2 EP92116168A EP92116168A EP0552409A2 EP 0552409 A2 EP0552409 A2 EP 0552409A2 EP 92116168 A EP92116168 A EP 92116168A EP 92116168 A EP92116168 A EP 92116168A EP 0552409 A2 EP0552409 A2 EP 0552409A2
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EP
European Patent Office
Prior art keywords
door
microwave device
microwave
switched
opened
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP92116168A
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German (de)
French (fr)
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EP0552409B1 (en
EP0552409A3 (en
Inventor
Rudolf Begero
Walter Gramlich
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BSH Hausgeraete GmbH
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Individual
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Publication of EP0552409A2 publication Critical patent/EP0552409A2/en
Publication of EP0552409A3 publication Critical patent/EP0552409A3/en
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Publication of EP0552409B1 publication Critical patent/EP0552409B1/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/66—Circuits
    • H05B6/666—Safety circuits

Definitions

  • the invention relates to a method for operating a baking space of a domestic stove, grill or the like which can be closed via a door and which can be heated by at least one electric heating device and / or a microwave device, with the microwave device being operated alone or with the microwave device being operated in combination the microwave device is switched off with an electric heating device when the door is opened.
  • the invention further relates to a circuit arrangement for performing the method.
  • the microwave device when the baking chamber is heated solely via the microwave device or in a combination operation of the microwave device together with an electric heating device, the microwave device is switched off after the door has been opened. This is to prevent injury due to unintentional exposure to microwaves and the escape of microwaves when the door is opened, for example to check the condition of the items to be prepared in the baking chamber.
  • the invention has for its object to develop the generic method so that a combination operation with the microwave device is made possible in a simple manner, incorrect settings with regard to the operation of the microwave device are avoided.
  • Another object of the invention is to further develop a circuit arrangement for such a baking chamber in a simple manner so that the method according to the invention can be carried out.
  • the object relating to the method is achieved in a generic method according to the invention in that in the combination operation after the microwave device has been switched off and the door has been closed again when the microwave device has been closed, the microwave device is automatically switched on again, provided that an adjustable period of time for microwave operation has not yet expired .
  • the microwave device is thus operated after the door has been closed in the course of performing a combination operation by automatically switching on the microwave device whenever its set operating time has not yet expired when the door is opened or the microwave device is switched off at the same time is.
  • the microwave operation is then continued over the remainder of the operating time as part of the combination operation with an electric heating device.
  • the microwave device in a method for the sole operation of the microwave device after the microwave device has been switched off due to the door being opened, the microwave device can also remain switched off in a manner corresponding to the usual procedure for microwave devices when the door has been closed again .
  • the operating time set for the microwave device is essentially independent thereof is switched on how often the door is opened, for example to check the food to be prepared, during the combination operation.
  • the invention further relates to a circuit arrangement for carrying out the method according to the invention.
  • the microwave device With a set combination operation of the microwave device with the electric heating device, the microwave device is automatically switched on again after the door has been closed, provided that the time period that can be set for the microwave mode has not yet expired.
  • the further switching device is associated with a closing contact of the limit switch that can be actuated by closing the door.
  • the further switching device provided according to the invention can be integrated in a simple manner into the already existing circuit arrangement, at least partially using the switching device with the limit switch for switching off the microwave device after the door has been opened.
  • a closing contact can be assigned in a simple manner to the limit switch assigned to the door via which, in the course of a combination operation, the microwave device is switched on again when the door is closed, if the set operating time for the microwave device has not yet expired when the door is opened.
  • the switching device according to the invention can be constructed in such a way that when the microwave device is operated alone after the door has been opened, the microwave device is not switched on automatically even if the set operating time for the microwave device has not yet expired at the time of opening.
  • the method according to the invention and the circuit arrangement according to the invention thus simplify the preparation in combination operation with simultaneous heating of the baking space by the microwave device and an electrical heating device. This also ensures that the operating time set for microwave operation is substantially maintained even when the microwave device is switched off for safety reasons while the door of the baking chamber is being opened. The rest of the operation of the baking room can be carried out independently of it in the usual and therefore familiar manner to a user.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electric Ovens (AREA)

Abstract

The invention relates to a method for operating a baking oven (which can be closed via a door) of a domestic cooker, grill or the like which can be heated by means of at least one electrical heating device and/or one microwave device, in the case of sole operation of the microwave device or in the case of combination operation of the microwave device with an electrical heating device, the microwave device being cut off when the door is opened. In order to render manual switching-on of the microwave device superfluous and in order to ensure that the operation of the microwave device is continued once the door has been closed if its operating duration has not yet elapsed, the microwave device in combination operation is automatically switched on again, according to the invention, when the door is closed again, after such microwave device has been cut off as a result of the door being opened, provided an adjustable time duration for microwave operation has not yet elapsed. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Verfahren zum Betrieb eines über eine Tür verschließbaren Backraumes eines Haushaltsherdes, Grillgerätes o. dgl. der durch mindestens eine elektrische Heizeinrichtung und/oder eine Mikrowelleneinrichtung beheizbar ist, wobei bei einem alleinigen Betrieb der Mikrowelleneinrichtung oder bei einem Kombinationsbetrieb der Mikrowelleneinrichtung mit einer elektrischen Heizeinrichtung die Mikrowelleneinrichtung bei einem Öffnen der Tür abgeschaltet wird.The invention relates to a method for operating a baking space of a domestic stove, grill or the like which can be closed via a door and which can be heated by at least one electric heating device and / or a microwave device, with the microwave device being operated alone or with the microwave device being operated in combination the microwave device is switched off with an electric heating device when the door is opened.

Die Erfindung bezieht sich weiter auf eine Schaltungsanordnung zur Durchführung des Verfahrens.The invention further relates to a circuit arrangement for performing the method.

Bei dem bekannten Verfahren wird bei einem Beheizen des Backraumes allein über die Mikrowelleneinrichtung oder in einem Kombinationsbetrieb der Mikrowelleneinrichtung zusammen mit einer elektrischen Heizeinrichtung die Mikrowelleneinrichtung nach einem Öffnen der Tür abgeschaltet. Damit soll eine Verletzung durch eine unbeabsichtigte Einwirkung von Mikrowellen, sowie ein Austritt von Mikrowellen verhindert werden, wenn die Tür geöffnet wird, um beispielsweise den Zustand des in dem Backraum zuzubereitenden Gutes zu überprüfen.In the known method, when the baking chamber is heated solely via the microwave device or in a combination operation of the microwave device together with an electric heating device, the microwave device is switched off after the door has been opened. This is to prevent injury due to unintentional exposure to microwaves and the escape of microwaves when the door is opened, for example to check the condition of the items to be prepared in the baking chamber.

Um den Kombinationsbetrieb mit eingeschalteter Mikrowelleneinrichtung nach einem Öffnen der Tür wieder aufzunehmen ist es deshalb erforderlich, daß die Mikrowelleneinrichtung nach jedem Schließen der Tür manuell wieder eingeschaltet wird. Dies erfordert insbesondere bei längeren, durch mehrmaliges Öffnen der Tür zur Kontrolle des Gutes unterbrochenen Zubereitungszeiten eine große Aufmerksamkeit. Damit ist die Bedienung erschwert. Weiterhin besteht eine erhebliche Gefahr, daß bei einem Kombinationsbetrieb mit zusätzlich zu einer elektrischen Heizquelle eingeschalteter Mikrowelleneinrichtung nach einem Schließen der Tür das Wiedereinschalten der Mikrowelleneinrichtung übersehen wird. Sofern die eingestellte Einschaltdauer für die Mikropwelleneinrichtung zum Zeitpunkt des Öffnens der Tür und damit zum Zeitpunkt eines Abschaltens der Mikrowelleneinrichtung nicht gleichzeitig dazu abgelaufen ist, kann sich deshalb eine Abweichung von der gewünschten bzw. ursprünglich eingestellten Art der Zubereitung ergeben.In order to restart the combination operation with the microwave device switched on after the door has been opened, it is therefore necessary for the microwave device to be manually switched on again each time the door is closed. This requires a lot of attention, especially with longer preparation times, which are interrupted by opening the door several times to check the goods. This makes operation difficult. Furthermore, there is a considerable risk that, in the case of a combination operation with the microwave device switched on in addition to an electric heating source, the microwave device will not be switched on again after the door is closed. If the set operating time for the micro-wave device at the time the door is opened and thus at the time the microwave device is switched off has not expired at the same time, there may therefore be a deviation from the desired or originally set type of preparation.

Der Erfindung liegt die Aufgabe zugrunde, das gattungsgemäße Verfahren so weiterzubilden, daß in einfacher Weise ein Kombinationsbetrieb mit der Mikrowelleneinrichtung ermöglicht wird, wobei Fehleinstellungen hinsichtlich des Betriebs der Mikrowelleneinrichtung vermieden sind.The invention has for its object to develop the generic method so that a combination operation with the microwave device is made possible in a simple manner, incorrect settings with regard to the operation of the microwave device are avoided.

Der Erfindung liegt als weitere Aufgabe zugrunde eine Schaltungsanordnung für einen derartigen Backraum in einfacher Weise so weiterzubilden, daß das erfindungsgemäße Verfahren durchgeführt werden kann.Another object of the invention is to further develop a circuit arrangement for such a baking chamber in a simple manner so that the method according to the invention can be carried out.

Die das Verfahren betreffende Aufgabe wird bei einem gattungsgemäßen Verfahren erfindungsgemäß dadurch gelöst, daß bei dem Kombinationsbetrieb nach dem Abschalten der Mikrowelleneinrichtung aufgrund eines Öffnens der Tür mit derem erneuten Schließen die Mikrowelleneinrichtung automatisch wieder eingeschaltet wird, sofern eine einstellbare Zeitdauer für einen Mikrowellenbetrieb noch nicht abgelaufen ist.The object relating to the method is achieved in a generic method according to the invention in that in the combination operation after the microwave device has been switched off and the door has been closed again when the microwave device has been closed, the microwave device is automatically switched on again, provided that an adjustable period of time for microwave operation has not yet expired .

Erfindungsgemäß erfolgt somit ein Betrieb der Mikrowelleneinrichtung nach einem Schließen der Tür im Verlaufe der Durchführung eines Kombinationsbetriebes durch ein automatisches Einschalten der Mikrowelleneinrichtung immer dann, wenn deren eingestellte Betriebsdauer zum Zeitpunkt des Öffnens der Tür, bzw. dem gleichzeitig erfolgenden Abschalten der Mikrowelleneinrichtung, noch nicht abgelaufen ist. Es wird dann über die restliche Betriebsdauer der Mikrowellenbetrieb im Rahmen des Kombinationsbetriebes mit einer elektrischen Heizeinrichtung fortgesetzt.According to the invention, the microwave device is thus operated after the door has been closed in the course of performing a combination operation by automatically switching on the microwave device whenever its set operating time has not yet expired when the door is opened or the microwave device is switched off at the same time is. The microwave operation is then continued over the remainder of the operating time as part of the combination operation with an electric heating device.

Unabhängig von dem erfindungsgemäßen Verfahren für den Kombinationsbetrieb kann bei einem Verfahren zum alleinigen Betrieb der Mikrowelleneinrichtung nach einem Ausschalten der Mikrowelleneinrichtung aufgrund eines Öffnens der Tür die Mikrowelleneinrichtung auch dann in einer der üblichen Vorgehensweise bei Mikrowellengeräten entsprechenden Weise ausgeschaltet bleiben, wenn die Tür wieder geschlossen worden ist.Regardless of the method according to the invention for the combination operation, in a method for the sole operation of the microwave device after the microwave device has been switched off due to the door being opened, the microwave device can also remain switched off in a manner corresponding to the usual procedure for microwave devices when the door has been closed again .

In einfacher Weise ist somit sichergestellt, daß bei einem Kombinationsbetrieb die für die Mikrowelleneinrichtung eingestellte Betriebsdauer im wesentlichen unabhängig davon eingeschaltet wird, wie oft die Tür, beispielsweise zu einer Kontrolle des zuzubereitenden Gutes, während des Kombinationsbetriebes geöffnet wird.It is thus ensured in a simple manner that, in the case of a combination operation, the operating time set for the microwave device is essentially independent thereof is switched on how often the door is opened, for example to check the food to be prepared, during the combination operation.

Die Erfindung betrifft weiter eine Schaltungsanordnung zur Durchführung des erfindungsgemäßen Verfahrens.The invention further relates to a circuit arrangement for carrying out the method according to the invention.

Einer bekannten Schaltungsanordnung für einen über eine Tür verschließbaren Backraum eines Haushaltsherdes, Grillgerätes o. dgl., der durch mindestens eine elektrische Heizeinrichtung und/oder eine Mikrowelleneinrichtung beheizbar ist, die eine über die Tür betätigbare Schalteinrichtung mit einem über die Tür betätigbaren Endschalter mit einem Öffnungskontakt zum Abschalten der Mikrowelleneinrichtung bei einem Öffnen der Tür aufweist, wird erfindungsgemäß eine weitere Schalteinrichtung vorgesehen. Durch diese wird bei einem eingestellten Kombinationsbetrieb der Mikrowelleneinrichtung mit der elektrischen Heizeinrichtung nach einem Schließen der Tür die Mikrowelleneinrichtung erneut selbstätig eingeschaltet, sofern die für den Mikrowellenbetrieb einstellbare Zeitdauer noch nicht abgelaufen ist.A known circuit arrangement for a baking chamber of a domestic stove, grill or the like which can be closed via a door and which can be heated by at least one electrical heating device and / or a microwave device which has a switching device which can be operated via the door and has a limit switch which can be operated via the door and has an opening contact for switching off the microwave device when the door is opened, a further switching device is provided according to the invention. With a set combination operation of the microwave device with the electric heating device, the microwave device is automatically switched on again after the door has been closed, provided that the time period that can be set for the microwave mode has not yet expired.

In vorteilhafter Weise ist der weiteren Schalteinrichtung ein mit einem Schließen der Tür betätigbarer Schließkontkat des Endschalters zugeordnet.Advantageously, the further switching device is associated with a closing contact of the limit switch that can be actuated by closing the door.

Die erfindungsgemäß vorgesehene, weitere Schalteinrichtung kann in einfacher Weise in die bereits vorhandene Schaltungsanordnung, unter zumindest teilweiser Verwendung der Schalteinrichtung mit dem Endschalter zum Abschalten der Mikrowelleneinrichtung nach einem Öffnen der Tür integriert werden. Dem der Tür zugeordneten Endschalter kann dabei in einfacher Weise ein Schließkontakt zugeordnet werden, über den im Verlaufe eines Kombinationsbetriebs die Mikrowelleneinrichtung bei einem Schließen der Tür erneut eingeschaltet wird, wenn zum Zeitpunkt eines Öffnens der Tür die eingestellte Betriebsdauer für die Mikrowelleneinrichtung noch nicht abgelaufen ist.The further switching device provided according to the invention can be integrated in a simple manner into the already existing circuit arrangement, at least partially using the switching device with the limit switch for switching off the microwave device after the door has been opened. A closing contact can be assigned in a simple manner to the limit switch assigned to the door via which, in the course of a combination operation, the microwave device is switched on again when the door is closed, if the set operating time for the microwave device has not yet expired when the door is opened.

Die erfindungsgemäße Schalteinrichtung kann dabei so aufgebaut sein, daß bei einem alleinigen Betrieb der Mikrowelleneinrichtung nach einem Öffnen der Tür ein selbsttätiges Einschalten der Mikrowelleneinrichtung auch dann nicht erfolgt, wenn zum Zeitpunkt des Öffnens die eingestellte Betriebsdauer für die Mikrowelleneinrichtung noch nicht vollständig abgelaufen ist.The switching device according to the invention can be constructed in such a way that when the microwave device is operated alone after the door has been opened, the microwave device is not switched on automatically even if the set operating time for the microwave device has not yet expired at the time of opening.

Dementsprechend ist es dann zur Fortsetzung des Verfahrens bei alleinigem Betrieb der Mikrowelleneinrichtung nach derem Abschalten aufgrund eines Öffnens der Tür erforderlich, daß die Mikrowelleneinrichtung wieder manuell eingeschaltet wird, wie dies im allgemeinen auch bei nur mit Mikrowelleneinrichtungen ausgestatteten Mikrowellengeräten der Fall ist.Accordingly, in order to continue the method when the microwave device is operated alone after it has been switched off due to an opening of the door, it is then necessary for the microwave device to be switched on again manually, as is generally the case with microwave devices which are only equipped with microwave devices.

Durch das erfindungsgemäße Verfahren und die erfindungsgemäße Schaltungsanordnung wird somit in einfacher Weise die Zubereitung im Kombinationsbetrieb bei einem gleichzeitigen Beheizen des Backraumes durch die Mikrowelleneinrichtung und eine elektrische Heizeinrichtung erleichtert. Dabei wird auch sichergestellt, daß die für den Mikrowellenbetrieb eingestellte Betriebsdauer auch dann in wesentlichen eingehalten wird, wenn während eines Öffnens der Tür des Backraumes aus Sicherheitsgründen die Mikrowelleneinrichtung abgeschalter wird. Der übrige Betrieb des Backraumes kann unabhängig davon in der üblichen und damit einem Anwender geläufigen Weise erfolgen.The method according to the invention and the circuit arrangement according to the invention thus simplify the preparation in combination operation with simultaneous heating of the baking space by the microwave device and an electrical heating device. This also ensures that the operating time set for microwave operation is substantially maintained even when the microwave device is switched off for safety reasons while the door of the baking chamber is being opened. The rest of the operation of the baking room can be carried out independently of it in the usual and therefore familiar manner to a user.

Claims (3)

Verfahren zum Betrieb eines über eine Tür verschließbaren Backraumes eines Haushaltsherdes, Grillgerätes o. dgl., der durch mindestens eine elektrische Heizeinrichtung und/oder eine Mikrowelleneinrichtung beheizbar ist, wobei bei einem Kombinationsbetrieb der Mikrowelleneinrichtung mit einer elektrischen Heizeinrichtung die Mikrowelleneinrichtung bei einem Öffnen der Tür abgeschaltet wird, dadurch gekennzeichnet, daß bei dem Kombinationsbetrieb nach dem Abschalten der Mikrowelleneinrichtung aufgrund eines Öffnens der Tür mit derem erneuten Schließen die Mikrowelleinrichtung automatisch wieder eingeschaltet wird, sofern eine einstellbare Zeitdauer für einen Mikrowellenbetrieb noch nicht abgelaufen ist.Method for operating a baking chamber of a domestic stove, grill or the like which can be closed via a door and which can be heated by at least one electrical heating device and / or a microwave device, the microwave device being switched off when the door is opened when the microwave device is combined with an electrical heating device is characterized in that in the combination operation after the microwave device has been switched off due to an opening of the door with its renewed closing, the microwave device is automatically switched on again, provided that an adjustable period of time for microwave operation has not yet expired. Schaltungsanordnung für einen über eine Tür verschließbaren Backraum eines Haushaltsherdes, Grillgerätes o. dgl., der durch mindestens eine elektrische Heizeinrichtung und/oder eine Mikrowelleneinrichtung beheizbar ist, mit einer über die Tür betätigbaren Schalteinrichtung mit einem über die Tür betätigbaren Endschalter mit eiem Öffnungskontakt zum Abschalten der Mikrowelleneinrichtung bei einem Öffnen der Tür, gekennzeichnet durch eine weitere Schalteinrichtung, durch die bei einem eingestellten Kombinationsbetrieb der Mikrowelleneinrichtung mit der elektrischen Heizeinrichtung nach einem Schließen der Tür die Mikrowelleneinrichtung erneut eingeschaltet wird, sofern die für den Mikrowellenbetireb einstellbare Zeitdauer noch nicht abgelaufen ist.Circuit arrangement for a baking space of a domestic stove, grill or the like which can be closed via a door and which can be heated by at least one electrical heating device and / or a microwave device, with a switching device which can be operated via the door and a limit switch which can be operated via the door and has an opening contact for switching off the microwave device when the door is opened, characterized by a further switching device, by means of which, when the combination of the microwave device and the electric heating device is set, the microwave device is switched on again after the door has been closed, provided that the time period adjustable for the microwave operation has not yet expired. Schaltungsanordnung nach Anspruch 2, dadurch gekennzeichnet, daß der weiteren Schalteinrichtung ein mit einem Schließen der Tür betätigbarer Schließkontakt des Endschalters zugeordnet ist.Circuit arrangement according to claim 2, characterized in that the further switching device is associated with a closing contact of the limit switch which can be actuated by closing the door.
EP92116168A 1991-12-20 1992-09-22 Process and circuit for the operation of a backing oven with at least one electric heating device and one microwave device Expired - Lifetime EP0552409B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4142335A DE4142335A1 (en) 1991-12-20 1991-12-20 METHOD AND CIRCUIT FOR OPERATING A BAKING ROOM WITH AT LEAST ONE ELECTRICAL HEATING DEVICE AND A MICROWAVE DEVICE
DE4142335 1991-12-20

Publications (3)

Publication Number Publication Date
EP0552409A2 true EP0552409A2 (en) 1993-07-28
EP0552409A3 EP0552409A3 (en) 1993-10-27
EP0552409B1 EP0552409B1 (en) 1997-12-17

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EP92116168A Expired - Lifetime EP0552409B1 (en) 1991-12-20 1992-09-22 Process and circuit for the operation of a backing oven with at least one electric heating device and one microwave device

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DE (2) DE4142335A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020098749A1 (en) * 2018-11-14 2020-05-22 广东美的厨房电器制造有限公司 Food roasting method and food roaster

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19504574C2 (en) * 1995-02-11 2002-05-02 Miele & Cie Oven with a door locking device for microwave operation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425490A (en) * 1980-11-20 1984-01-10 Tokyo Shibaura Denki Kabushiki Kaisha Programmable electronic cooking apparatus
US4533810A (en) * 1984-08-20 1985-08-06 General Electric Company Start circuit for microwave oven
DE3737263A1 (en) * 1986-12-23 1988-07-07 Sharp Kk MICROWAVE OVEN
EP0374397A2 (en) * 1988-12-22 1990-06-27 Bosch-Siemens HausgerÀ¤te GmbH Household appliance

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4425490A (en) * 1980-11-20 1984-01-10 Tokyo Shibaura Denki Kabushiki Kaisha Programmable electronic cooking apparatus
US4533810A (en) * 1984-08-20 1985-08-06 General Electric Company Start circuit for microwave oven
DE3737263A1 (en) * 1986-12-23 1988-07-07 Sharp Kk MICROWAVE OVEN
EP0374397A2 (en) * 1988-12-22 1990-06-27 Bosch-Siemens HausgerÀ¤te GmbH Household appliance

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020098749A1 (en) * 2018-11-14 2020-05-22 广东美的厨房电器制造有限公司 Food roasting method and food roaster

Also Published As

Publication number Publication date
EP0552409B1 (en) 1997-12-17
EP0552409A3 (en) 1993-10-27
DE59209073D1 (en) 1998-01-29
DE4142335A1 (en) 1993-06-24

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