EP0540876A2 - Cooking hob - Google Patents

Cooking hob Download PDF

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Publication number
EP0540876A2
EP0540876A2 EP92116753A EP92116753A EP0540876A2 EP 0540876 A2 EP0540876 A2 EP 0540876A2 EP 92116753 A EP92116753 A EP 92116753A EP 92116753 A EP92116753 A EP 92116753A EP 0540876 A2 EP0540876 A2 EP 0540876A2
Authority
EP
European Patent Office
Prior art keywords
glass
heating element
ring
light guide
hob 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.)
Granted
Application number
EP92116753A
Other languages
German (de)
French (fr)
Other versions
EP0540876A3 (en
EP0540876B1 (en
Inventor
Heinrich Detterbeck
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.)
BSH Hausgeraete GmbH
Original Assignee
Individual
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
Priority claimed from DE4139508A external-priority patent/DE4139508C2/en
Application filed by Individual filed Critical Individual
Publication of EP0540876A2 publication Critical patent/EP0540876A2/en
Publication of EP0540876A3 publication Critical patent/EP0540876A3/en
Application granted granted Critical
Publication of EP0540876B1 publication Critical patent/EP0540876B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/08—Arrangement or mounting of control or safety devices
    • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
    • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates
    • 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
    • H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator

Definitions

  • the invention relates to a hob according to the preamble of patent claim 1.
  • annular light guide is arranged laterally outside the heating element which is designed as a radiant heater and has a cup-shaped housing and is e.g. connected to the heating element housing by means of a pocket-shaped holder.
  • the invention has for its object to improve the positioning of the light guide with respect to the heating element.
  • the integration of the light guide in the heating element results in a comparatively low thermal stress on the glass material when the heating element is in operation and one obtains a very simple arrangement and assembly of the light guide inside the heating element without additional holding elements or the like Heating element, wherein the ring-shaped or cup-shaped insulation support also serves as a holder for the light guide.
  • a further design and assembly simplification results from the fact that the glass ring serving as a light guide forms the side wall of a cup-shaped glass body that receives the insulation insert or carries a reflection coating.
  • 1 denotes a support which covers the hob and is made of glass-ceramic, partially transparent material, below which, as a rule, a plurality of heating elements 2 are arranged at a distance from one another.
  • the heating element consists of a cup-shaped, upwardly open housing 3 made of sheet metal material, in which an essentially flat insulation insert 5 carrying electrical heating coils 4 and an edge-side one-piece or separate ring-shaped insulation insert 6 are arranged on the bottom of the bowl.
  • This heating element 2 is pressed in a manner not shown, against the underside of the glass-ceramic carrier 1, the inner surface of the annular insulation insert 6 determining a cooking or storage surface for pots or the like which can be heated by the electric heating coils 4.
  • the outer diameter of the insulation insert 6 serving as a wall element of the insulation insert 5/6 is slight, for example a few millimeters smaller than the inside diameter of the housing 3, so that an annular gap 7 is present between the insulation insert 6 and the housing 3, in which a light guide designed as a glass ring is present 8 arranged, for example inserted or pressed or embedded.
  • the light guide 8, which is preferably in the form of a closed glass ring, has a vertical extent which essentially corresponds to the housing height and is provided with at least one opening 9, into which a light source 10 of a lighting device (not shown) projects.
  • the light source can be designed as an incandescent or glow lamp and is connected via a connection element 11 and electrical lines to a control device (not shown), for example to a device for indicating residual heat, the lighting device has a temperature-dependent switch which switches on the light source 10 from a safety temperature of, for example, 50 ° C. and thus signals that the support surface 1 should not be touched.
  • the light rays emanating from the light source 10 are guided in the light guide 8, as a result of which the entire light guide has a lighting effect in the direction of the glass-ceramic carrier 1, by means of which the above-mentioned footprint is simultaneously optically identified.
  • a so-called residual heat indicator it can be provided that the lighting device is switched on simultaneously with the switching on of the heating element.
  • the housing 12 of the heating element 2 ' is designed as a one-piece glass body and has a cup-like shape, which is suitable for receiving the insulating insert or inserts 5, 6.
  • the cylindrical side wall 13 represents a light guide, the lighting technology is in turn connected via the opening 9 to the lighting device described above.
  • the exemplary embodiment according to FIG. 3 differs from FIG. 2 only in the arrangement of the light source 10.
  • the glass body 12 is provided in the upwardly open container 13 on the underside of the bottom surface, the open side of which rests on the bottom surface and has a lamp holder 18 for the light source 10.
  • the inside or part of the container can be provided with a light-reflecting surface.
  • This central arrangement of the light source 10, preferably central with respect to the glass body 12, results in a very intensive and uniform illumination of the light guide and a good optical effect.
  • the glass ring forming the light guide in the form of the separate ring part in FIG. 1 or the side wall 13 in FIG. 2 on the side ring surfaces 14, 15 and / or on the lower ring surface 16 (FIG. 1) has a reflective coating, e.g. is mirrored at this point, so that the light flowing through the light guide is reflected very strongly upwards and on the other hand the lateral thermal insulation of the heating element is reinforced.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Resistance Heating (AREA)
  • General Preparation And Processing Of Foods (AREA)
  • Electric Stoves And Ranges (AREA)
  • Cookers (AREA)

Abstract

The cooking hob has an at least partially transparent carrier consisting of glass or glass-ceramic, with heating elements arranged underneath it. Provided on the periphery of the heating element is an optical conductor (which surrounds the heating element) of a lighting device, for visual indication of the heated area and/or for indicating residual heat. The optical conductor is constructed in the form of a glass ring and surrounds the likewise annular wall element of an insulation insert, which is in the form of a pan, of the heating element. <IMAGE>

Description

Die Erfindung bezieht sich auf ein Kochfeld gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a hob according to the preamble of patent claim 1.

Bei einem bekannten Kochfeld (DE-OS 40 02 322) ist ein ringförmiger Lichtleiter seitlich außerhalb des als Strahlungsheizkörper ausgebildeten, ein napfförmiges Gehäuse aufweisenden Heizelementes angeordnet und z.B. mittels einer taschenförmigen Halterung mit dem Heizelement-Gehäuse verbunden.In a known cooktop (DE-OS 40 02 322), an annular light guide is arranged laterally outside the heating element which is designed as a radiant heater and has a cup-shaped housing and is e.g. connected to the heating element housing by means of a pocket-shaped holder.

Der Erfindung liegt die Aufgabe zugrunde, die Positionierung des Lichtleiters in bezug auf das Heizelement zu verbessern.The invention has for its object to improve the positioning of the light guide with respect to the heating element.

Diese Aufgabe wird gemäß der Erfindung gelöst durch die im Kennzeichnungsteil des Patentanspruches 1 aufgeführten Maßnahmen. Vorteilhafte Weiterbildungen der Erfindung ergeben sich aus den nachfolgenden Patentansprüchen.This object is achieved according to the invention by the measures listed in the characterizing part of claim 1. Advantageous further developments of the invention result from the following patent claims.

Durch die Integration des Lichtleiters im Heizelement, insbesondere der besonderen Anordnung im Anschluß an den Isolationseinsatz ergibt sich eine vergleichsweise niedrige thermische Beanspruchung des Glasmaterials bei Betrieb des Heizelementes und man erhält ohne zusätzliche Halteelemente oder dgl. eine sehr einfache Anordnung und Montage des Lichtleiters im Inneren des Heizelementes, wobei der ringförmige oder napfförmige Isolationsträger gleichzeitig als Halterung für den Lichtleiter dient.The integration of the light guide in the heating element, in particular the special arrangement following the insulation insert, results in a comparatively low thermal stress on the glass material when the heating element is in operation and one obtains a very simple arrangement and assembly of the light guide inside the heating element without additional holding elements or the like Heating element, wherein the ring-shaped or cup-shaped insulation support also serves as a holder for the light guide.

Eine weitere konstruktive und montagemäßige Vereinfachung ergibt sich dadurch, daß der als Lichtleiter dienende Glasring die Seitenwand eines napfförmigen, den Isolationseinsatz aufnehmenden oder einen Reflexionsbelag tragenden Glaskörpers einstückig bildet.A further design and assembly simplification results from the fact that the glass ring serving as a light guide forms the side wall of a cup-shaped glass body that receives the insulation insert or carries a reflection coating.

Die Erfindung ist anhand von in der Zeichnung dargestellten Ausführungsbeispielen nachstehend erläutert.The invention is explained below with reference to exemplary embodiments shown in the drawing.

Es zeigt:

Fig. 1
die Schnittansicht eines erfindungsgemäßen Kochfeldes mit nur einem einzigen Heizelement gemäß einer ersten Ausführungsform,
Fig. 2
die Schnittansicht eines Kochfeldes in einer zweiten Ausführungsform und
Fig. 3
eine alternative Ausführung zu Fig. 2.
It shows:
Fig. 1
1 shows the sectional view of a hob according to the invention with only a single heating element according to a first embodiment,
Fig. 2
the sectional view of a hob in a second embodiment and
Fig. 3
an alternative embodiment to Fig. 2nd

Beim Ausführungsbeispiel gemäß Fig. 1 ist mit 1 ein das Kochfeld abdeckender Träger aus glaskeramischem, teiltransparenten Material bezeichnet, unterhalb welchem in der Regel mehrere Heizelemente 2 mit Abstand voneinander angeordnet sind. Das Heizelement besteht aus einem napfförmigen, nach oben offenen Gehäuse 3 aus Blechmaterial, in dem auf dem Napfboden ein im wesentlichen ebener, elektrische Heizwendeln 4 tragender Isolationseinsatz 5 sowie randseitig ein damit einstückiger oder aber separater, ringförmiger Isolationseinsatz 6 angeordnet ist. Dieses Heizelement 2 wird in nicht weiter dargestellter Weise gegen die Unterseite des glaskeramischen Trägers 1 gedrückt, wobei die innere Fläche des ringförmigen Isolationseinsatzes 6 eine durch die elektrischen Heizwendeln 4 beheizbare Koch- oder Stellfläche für Töpfe oder dgl. bestimmt. Der äußere Durchmesser des als Wandelement des Isolationseinsatzes 5/6 dienenden Isolationseinsatzes 6 ist geringfügig, z.B. um wenige Millimeter geringer als der Innendurchmesser des Gehäuses 3, so daß zwischen Isolationseinsatz 6 und Gehäuse 3 ein Ringspalt 7 vorhanden ist, in welchem ein als Glasring ausgebildeter Lichtleiter 8 angeordnet, z.B. eingefügt oder eingedrückt oder eingebettet ist. Der vorzugsweise als geschlossener Glasring ausgebildete Lichtleiter 8 besitzt eine im wensentlichen mit der Gehäusehöhe übereinstimmende vertikale Ausdehnung und ist mit wenigstens einer Öffnung 9 versehen, in die eine Lichtquelle 10 einer nicht weiter dargestellten Leuchteinrichtung hineinragt. Die Lichtquelle kann als Glüh- oder Glimmlampe ausgebildet sein und steht über ein Anschlußelement 11 und elektrische Leitungen mit einer nicht dargestellten Steuereinrichtung in Verbindung, z.B. mit einer Einrichtung zur Restwärmeanzeige, wobei die Leuchteinrichtung einen temperaturabhängigen Schalter aufweist, der ab einer Sicherheitstemperatur von z.B. 50°C die Lichtquelle 10 einschaltet und damit signalisiert, daß ein Berühren der Stellfläche des Trägers 1 zu unterlassen ist. Die von der Lichtquelle 10 ausgehenden Lichtstrahlen werden im Lichtleiter 8 geleitet, wodurch der gesamte Lichtleiter in Richtung zum glaskeramischen Träger 1 eine Leuchtwirkung ausübt, durch die gleichzeitig eine optische Kennzeichnung der vorgenannten Stellfläche erfolgt. Anstelle einer sogenannten Restwärmeanzeige kann hierzu vorgesehen sein, daß die Leuchteinrichtung gleichzeitig mit dem Einschalten des Heizelementes eingeschaltet wird.In the exemplary embodiment according to FIG. 1, 1 denotes a support which covers the hob and is made of glass-ceramic, partially transparent material, below which, as a rule, a plurality of heating elements 2 are arranged at a distance from one another. The heating element consists of a cup-shaped, upwardly open housing 3 made of sheet metal material, in which an essentially flat insulation insert 5 carrying electrical heating coils 4 and an edge-side one-piece or separate ring-shaped insulation insert 6 are arranged on the bottom of the bowl. This heating element 2 is pressed in a manner not shown, against the underside of the glass-ceramic carrier 1, the inner surface of the annular insulation insert 6 determining a cooking or storage surface for pots or the like which can be heated by the electric heating coils 4. The outer diameter of the insulation insert 6 serving as a wall element of the insulation insert 5/6 is slight, for example a few millimeters smaller than the inside diameter of the housing 3, so that an annular gap 7 is present between the insulation insert 6 and the housing 3, in which a light guide designed as a glass ring is present 8 arranged, for example inserted or pressed or embedded. The light guide 8, which is preferably in the form of a closed glass ring, has a vertical extent which essentially corresponds to the housing height and is provided with at least one opening 9, into which a light source 10 of a lighting device (not shown) projects. The light source can be designed as an incandescent or glow lamp and is connected via a connection element 11 and electrical lines to a control device (not shown), for example to a device for indicating residual heat, the lighting device has a temperature-dependent switch which switches on the light source 10 from a safety temperature of, for example, 50 ° C. and thus signals that the support surface 1 should not be touched. The light rays emanating from the light source 10 are guided in the light guide 8, as a result of which the entire light guide has a lighting effect in the direction of the glass-ceramic carrier 1, by means of which the above-mentioned footprint is simultaneously optically identified. Instead of a so-called residual heat indicator, it can be provided that the lighting device is switched on simultaneously with the switching on of the heating element.

Beim Ausführungsbeispiel gemäß Fig. 2 ist das Gehäuse 12 des Heizelementes 2' als einstückiger Glaskörper ausgebildet und besitzt eine napfartige Form, die geeignet ist, zur Aufnahme des oder der Isolationseinsätze 5, 6. Hierbei stellt die zylindrische Seitenwand 13 einen Lichtleiter dar, der lichttechnisch über die Öffnung 9 wiederum verbunden ist mit der vor beschriebenen Leuchteinrichtung. Das Ausführungsbeispiel gemäß Fig. 3 unterscheidet sich von Fig. 2 nur durch die Anordnung der Lichtquelle 10. Bei Fig. 3 ist an der Unterseite der Bodenfläche der Glaskörper 12 im nach oben offenen Behälter 13 vorgesehen, der mit seiner offenen Seite an der Bodenfläche anliegt und eine Lampenfassung 18 für die Lichtquelle 10 besitzt. Der Behälter kann im Inneren ganz oder teilweise mit einer Licht reflektierenden Oberfläche versehen sein. Durch diese zentrale, vorzugswseise hinsichtlich des Glaskörpers 12 mittige Anordnung der Lichtquelle 10 erhält man eine sehr intensive und gleichmäßige Ausleuchtung des Lichtleiters und eine gute optische Wirkung.2, the housing 12 of the heating element 2 'is designed as a one-piece glass body and has a cup-like shape, which is suitable for receiving the insulating insert or inserts 5, 6. Here, the cylindrical side wall 13 represents a light guide, the lighting technology is in turn connected via the opening 9 to the lighting device described above. The exemplary embodiment according to FIG. 3 differs from FIG. 2 only in the arrangement of the light source 10. In FIG. 3, the glass body 12 is provided in the upwardly open container 13 on the underside of the bottom surface, the open side of which rests on the bottom surface and has a lamp holder 18 for the light source 10. The inside or part of the container can be provided with a light-reflecting surface. This central arrangement of the light source 10, preferably central with respect to the glass body 12, results in a very intensive and uniform illumination of the light guide and a good optical effect.

Bei beiden Ausführungsbeispielen kann vorgesehen sein, daß der den Lichtleiter bildende Glasring in Form des separaten Ringteils bei Fig. 1 oder der Seitenwand 13 bei Fig. 2 an den seitlichen Ringflächen 14, 15 und/oder an der unteren Ringfläche 16 (Fig. 1) einen Reflexionsbelag aufweist, z.B. an dieser Stelle verspiegelt ist, so daß das den Lichtleiter durchflutende Licht nach oben hin sehr stark reflektiert wird und andererseits die seitliche Wärmedämmung des Heizelementes verstärkt wird.In both exemplary embodiments it can be provided that the glass ring forming the light guide in the form of the separate ring part in FIG. 1 or the side wall 13 in FIG. 2 on the side ring surfaces 14, 15 and / or on the lower ring surface 16 (FIG. 1) has a reflective coating, e.g. is mirrored at this point, so that the light flowing through the light guide is reflected very strongly upwards and on the other hand the lateral thermal insulation of the heating element is reinforced.

Claims (6)

Kochfeld mit einem zumindest teiltransparenten Träger aus Glas oder Glaskeramik, mit darunter im Bereich wenigstens einer Stellfläche des Trägers angeordneten, wenigstens einem, einen napfförmigen Isolationseinsatz aufweisenden Heizelement und mit einem die Peripherie des Heizelementes umziehenden Lichtleiter einer Leuchteinrichtung zur optischen Kennzeichnung und/oder zur optischen Anzeige der eine vorbestimmte, für eine Berührung zulässige Temperatur übersteigenden Erwärmung des Trägers, dadurch gekennzeichnet, daß der Lichtleiter (8, 13) in Form eines Glasringes das ebenfalls ringförmige Wandelement (6) des Isolationseinsatzes (5/6) umzieht.Hob with an at least partially transparent support made of glass or glass ceramic, with at least one heating element arranged underneath it in the area of at least one shelf of the support and having a cup-shaped insulation insert and with a light guide of a lighting device moving around the periphery of the heating element for optical identification and / or visual display the heating of the carrier exceeding a predetermined temperature permissible for contact, characterized in that the light guide (8, 13) in the form of a glass ring moves the likewise annular wall element (6) of the insulation insert (5/6). Kochfeld nach Anspruch 1, dadurch gekennzeichnet, daß der als Lichtleiter dienende Glasring die Seitenwand (13) eines napfförmigen, den Isolationseinsatz (5/6) aufnehmenden oder einen Reflexionsbelag tragenden Glaskörpers (Gehäuse 12) einstückig bildet.Hob according to claim 1, characterized in that the glass ring serving as a light guide forms the side wall (13) of a cup-shaped glass body (housing 12) receiving the insulation insert (5/6) or carrying a reflection coating. Kochfeld nach Anspruch 2, dadurch gekennzeichnet, daß an der Bodenfläche des napfförmigen Glaskörpers (12), vorzugsweise im Zentrum und unterhalb dieser Bodenfläche eine Lichtquelle (10) angeordnet ist.Hob according to claim 2, characterized in that a light source (10) is arranged on the bottom surface of the cup-shaped glass body (12), preferably in the center and below this bottom surface. Kochfeld nach Anspruch 3, dadurch gekennzeichnet, daß für die Lichtquelle (10) ein einseitig offener, vorzugsweise eine reflektierende Oberfläche aufweisender Behälter (17) vorgesehen ist, der mit seiner offenen Seite am Glaskörper (12) anliegt.Hob according to Claim 3, characterized in that a container (17) which is open on one side and preferably has a reflective surface is provided for the light source (10) and its open side lies against the glass body (12). Kochfeld nach einem der vorhergehenend Ansprüche, dadurch gekennzeichnet, daß der Glasring eine Öffnung (9) für die Aufnahme einer Lichtquelle (10) besitzt.Hob according to one of the preceding claims, characterized in that the glass ring has an opening (9) for receiving a light source (10). Kochfeld nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Glasring an den seitlichen Ringflächen (14, 15) und/oder an der unteren Ringfläche (16) einen Reflexionsbelag aufweist.Hob according to one of the preceding claims, characterized in that the glass ring has a reflection coating on the lateral ring surfaces (14, 15) and / or on the lower ring surface (16).
EP92116753A 1991-11-07 1992-09-30 Cooking hob Expired - Lifetime EP0540876B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE4136702 1991-11-07
DE4136702 1991-11-07
DE4139508 1991-11-29
DE4139508A DE4139508C2 (en) 1991-11-07 1991-11-29 Cooktop

Publications (3)

Publication Number Publication Date
EP0540876A2 true EP0540876A2 (en) 1993-05-12
EP0540876A3 EP0540876A3 (en) 1993-06-02
EP0540876B1 EP0540876B1 (en) 1997-12-03

Family

ID=25908896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116753A Expired - Lifetime EP0540876B1 (en) 1991-11-07 1992-09-30 Cooking hob

Country Status (4)

Country Link
EP (1) EP0540876B1 (en)
AT (1) ATE160916T1 (en)
ES (1) ES2112285T3 (en)
GR (1) GR3025957T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301760A (en) * 1995-06-01 1996-12-11 Ceramaspeed Ltd Light indicator arrangement in an electric cooking plate
EP0757210A1 (en) * 1995-07-29 1997-02-05 E.G.O. ELEKTRO-GERÄTEBAU GmbH Radiating cooker element
US6369365B1 (en) 1999-02-18 2002-04-09 Schott Glas Glass-ceramic panel providing a cooking surface with a cooking zone indicating device and method of making same
WO2008042805A2 (en) * 2006-09-29 2008-04-10 Bose Corporation Method and device for displaying cooking-related information on a cooktop

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346574A (en) * 1970-03-24 1974-02-13
GB2170002A (en) * 1985-01-17 1986-07-23 Licentia Gmbh Ceramic hob
EP0265635A1 (en) * 1986-10-17 1988-05-04 E.G.O. Elektro-Geräte Blanc u. Fischer Radiating heating element
EP0359028A1 (en) * 1988-09-14 1990-03-21 E.G.O. Elektro-Geräte Blanc u. Fischer Heating installation
EP0438656A2 (en) * 1990-01-26 1991-07-31 Bosch-Siemens HausgerÀ¤te GmbH Cooking plate
DE4004309A1 (en) * 1990-02-13 1991-08-14 Ego Elektro Blanc & Fischer DISPLAY DEVICE FOR COOKING EQUIPMENT
EP0499972A1 (en) * 1991-02-22 1992-08-26 MMG GLASTECHNIK GmbH Luminous ring for indicating the cooking area of a glass-ceramic cooking hob

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1346574A (en) * 1970-03-24 1974-02-13
GB2170002A (en) * 1985-01-17 1986-07-23 Licentia Gmbh Ceramic hob
EP0265635A1 (en) * 1986-10-17 1988-05-04 E.G.O. Elektro-Geräte Blanc u. Fischer Radiating heating element
EP0359028A1 (en) * 1988-09-14 1990-03-21 E.G.O. Elektro-Geräte Blanc u. Fischer Heating installation
EP0438656A2 (en) * 1990-01-26 1991-07-31 Bosch-Siemens HausgerÀ¤te GmbH Cooking plate
DE4004309A1 (en) * 1990-02-13 1991-08-14 Ego Elektro Blanc & Fischer DISPLAY DEVICE FOR COOKING EQUIPMENT
EP0499972A1 (en) * 1991-02-22 1992-08-26 MMG GLASTECHNIK GmbH Luminous ring for indicating the cooking area of a glass-ceramic cooking hob

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2301760A (en) * 1995-06-01 1996-12-11 Ceramaspeed Ltd Light indicator arrangement in an electric cooking plate
US5750959A (en) * 1995-06-01 1998-05-12 Ceramaspeed Limited Electric heater
GB2301760B (en) * 1995-06-01 1999-09-22 Ceramaspeed Ltd Electric heater
EP0757210A1 (en) * 1995-07-29 1997-02-05 E.G.O. ELEKTRO-GERÄTEBAU GmbH Radiating cooker element
US5900175A (en) * 1995-07-29 1999-05-04 E.G.O. Elektro-Geratebau Gmbh Radiant cooking unit
US6369365B1 (en) 1999-02-18 2002-04-09 Schott Glas Glass-ceramic panel providing a cooking surface with a cooking zone indicating device and method of making same
WO2008042805A2 (en) * 2006-09-29 2008-04-10 Bose Corporation Method and device for displaying cooking-related information on a cooktop
WO2008042805A3 (en) * 2006-09-29 2008-08-21 Bose Corp Method and device for displaying cooking-related information on a cooktop
US7554060B2 (en) 2006-09-29 2009-06-30 England Raymond O Displaying cooking-related information

Also Published As

Publication number Publication date
ES2112285T3 (en) 1998-04-01
GR3025957T3 (en) 1998-04-30
ATE160916T1 (en) 1997-12-15
EP0540876A3 (en) 1993-06-02
EP0540876B1 (en) 1997-12-03

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