EP0359028A1 - Installation de chauffage - Google Patents
Installation de chauffage Download PDFInfo
- Publication number
- EP0359028A1 EP0359028A1 EP89115955A EP89115955A EP0359028A1 EP 0359028 A1 EP0359028 A1 EP 0359028A1 EP 89115955 A EP89115955 A EP 89115955A EP 89115955 A EP89115955 A EP 89115955A EP 0359028 A1 EP0359028 A1 EP 0359028A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- light guide
- heating
- heating field
- carrier
- 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.)
- Withdrawn
Links
Images
Classifications
-
- 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
- H05B3/748—Resistive heating elements, i.e. heating elements exposed to the air, e.g. coil wire heater
-
- 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
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
- F24C15/102—Tops, e.g. hot plates; Rings electrically heated
- F24C15/105—Constructive details concerning the regulation of the temperature
-
- 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
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/07—Heating plates with temperature control means
Definitions
- the invention relates to a heating device which is provided in particular for cooking and has at least one light indicator.
- a light display for radiant heaters has become known, in which the light beam path between the light source and the glass ceramic plate is essentially influenced by a concave mirror, which is not only technically and spatially complex, but also no long-term functional reliability offers, as mirrors tend to blind very quickly under the loads in a jet heater.
- a certain light beam path can also arise within the glass ceramic plate, so that e.g. a central light source is still poorly visible even in the edge area of the glass ceramic plate, but for this the light source would have to be very close to the glass ceramic plate and this should also have an edge that must be carefully kept clean around the individual heating field, which glass ceramic plates with several heating fields deliberately avoided for numerous known reasons becomes.
- the invention has for its object to avoid disadvantages of known training and in particular to provide a heating device of the type mentioned, in which at least one condition criterion of the heating field can be displayed in a simple manner at a suitable location and in a suitable extent by lighting.
- this object can be achieved by arranging at least one strand-shaped light guide which guides the light to at least one display point within its scattering range.
- the separate light guide allows, on the one hand, the light source and, on the other hand, the light indicator to be attached virtually anywhere at any point and connected by the physical light guide, in which the light is directed within an envelope that defines it.
- the light source can be arranged on the underside of the radiant heater, away from the radiant heater, for example together with other light sources for further heating fields or at another location.
- the light emission of the indicator light can be on the inside or underside of the glass ceramic plate, inside the Heating field, be provided in a shovel with light indicators for further heating fields of the same hob, in the area of the dashboard or elsewhere, any combination of the arrangements mentioned being possible, for example, by providing two or more light guides for each heating field a single common or multiple light sources can be operated. Separate light guides can also be strung together in series or to form branches of the light beam path.
- the heater can in particular be a radiant heater, but also an induction heater or a contact heater or the like.
- the measures according to the invention can be used wherever heating is carried out through a translucent or translucent plate.
- the light display essentially in a uniform distribution around the outer circumference of the heating field, in particular radially outside the heating resistors or radially outside an outer contact edge of the support or outside that field which is usually covered by the bottom of a cooking vessel to be heated.
- a single light guide is advantageously provided for the respective heating field or the respective heating field part, wherein this light guide can have light inlets for the same light source at both rod ends.
- the light guide can be arranged very close to the glass ceramic plate, while the light source can be arranged further away from it or shielded from the glass ceramic plate.
- the light guide is located in areas of the hotplate or the radiant heater that are less thermally stressed, it can be formed by a simple, in particular multiply curved glass rod, while it is expediently formed by a rod made of quartz glass when arranged in regions that are subject to higher thermal stresses.
- the light guide can also consist of a bundle of optical fibers, which then end in different longitudinal areas of the light guide to form light exits.
- the cross sections of the light guide can change to adapt to the respective spatial requirements, the light guide e.g. in the area in which it is to be passed crossing a rod-shaped temperature sensor, may have flatter cross sections. Circular, semicircular, flat-oval and similar cross-sections are conceivable as cross-sections. The transition between different cross sections is, if desired, chosen so that no light decoupling occurs. With heating that only leads to low temperatures of the light guide, e.g. an induction heater, the light guide can also be made of plastic.
- the light source or the light input to the light guide can be switched so that there is both an indication of the switch-on and switch-off state of the associated heating field as well as its hot state, ie that the same light source or a second light source is provided with the light indicator via the light guide for as long Light is supplied until the temperature of the heating field has dropped below a certain, uncritical value.
- the luminous intensity of the illuminated display or the light source is changed continuously or in stages so that, for example, each power setting of the manual switching device for the heating field is assigned a specific luminous intensity.
- the light intensity expediently also increases with an increasingly higher power setting. This gives the user an indication of the level of the selected setting, which is initially a setpoint setting and therefore cannot be recognized directly on the heating field or on the heating resistors themselves.
- a heating unit for heating at least one hob or the like a heating unit for heating at least one hob or the like.
- Consists of a circular or polygonal jet heater 1 which forms a self-contained assembly unit and which is arranged on the inside 3 of a flat glass ceramic plate 2, the outside 4 of which is the standing area for a Can form a cooking vessel.
- the radiant heater 1 has a bowl-shaped carrier 5 with an outer sheet metal carrier shell 6, a relatively dimensionally unstable mineral insulation 7 arranged on the bottom thereof and a one-part or multi-part, shell-shaped molded body which has an insulating carrier 8 for at least one radiant heater 11, such as a essentially exposed resistance filament and / or at least one halogen lamp and an outer circumference, protruding against the plate 2
- an insulating carrier 8 for at least one radiant heater 11, such as a essentially exposed resistance filament and / or at least one halogen lamp and an outer circumference, protruding against the plate 2 Forms outer edge 9, the end face of which is provided as the contact surface 10 determining the contact plane for the essentially thermal and light-tight contact on the inside 3 of the plate 2.
- the heating field 12 of the cooking surface is determined by the heating resistor 11 or the inner circumference of the outer edge 9.
- the shell edge 18 of the support shell 6 is slightly back from the contact plane and merges into the shell bottom via an annular shoulder 19 which is slightly
- a light indicator 20 is provided with a light source 21 having a halogen lamp 22, whose filament 23 is enclosed in a transparent bulb and is electrically connected to at least one display circuit by its easily detachable insertion into a socket 25.
- the light source 21 is located directly adjacent to the outer circumference of the carrier 5 in a housing 26 which extends approximately over the entire height of the carrier 5, is set back slightly from the inside of the plate 3, has a greater extent in the circumferential direction than radial to the radiant heater 1 and with a hood-shaped plug on a base 27 carrying the socket 25, which can be easily lifted off, the lamp 22 both to the plate 2 and in the circumferential direction, namely essentially fully on all sides shields constantly.
- a vent 29 is provided which is formed by openings in the housing hood part.
- each light input 32 or 33 is formed by the end face of one of the two ends 35, 36 of a one-piece light guide rod made of transparent material, the circumferential surface of which, expediently over most of its length, has the smoothness resulting from the glass melt or the like.
- the ends 35, 36 are inserted through closely matched openings in the end walls of the housing 26 and angled slightly away from the contact plane, so that the filament 23 can be at a greater distance from the contact plane than the main part of the light guide 30 which is essentially parallel to the contact plane .
- the distance of the light guide 30 from the contact plane can be in the order of its cross-sectional width or less.
- the light guide 30 is essentially axially aligned with the heating field 12 or parallel to the outer circumference of the carrier 5 at a distance from it, so that in the illuminated state it practically surrounds the hob 12 and can be easily recognized through the plate 2 which is transparent at least in its area Luminous wreath can form.
- the light guide 30 for the light coupling has numerous, for example essentially uniformly distributed, light outlets 40, which can be provided essentially over the entire circumference of the light guide 30, which is thus in this area by the The presence of the light exits forms an essentially ring-shaped display section 42 which directly serves for the illuminated display.
- Each light exit 40 is by at least one prism-like breaking through the outer circumference of the light guide 30, e.g. at about 45 ° to the contact plane inclined reflection flank or formed by a corresponding, V-shaped circumferential notch 44, which could be anywhere on the light guide circumference, but is preferably provided on the side facing away from the contact plane.
- a continuous surface corrugation for example, a roughened surface of the light guide 30 or the like produced by chemical etching or sand blasting or similar measures can be provided instead or in addition to this, so that both a chain of lights consisting of light points strung together and also an essentially uniformly shining ring can be created throughout.
- An annular display field 45 is created in the area of the outside 4 of the plate 2 by the light exits 40, which is spaced outside the heating field 12.
- the light guide 30 is held on the one hand by its connection to the housing 26 and on the other hand by a separate, preferably uniformly distributed over its circumference engaging bracket 46 which is also essentially in the form of a ring essentially continuously over the length of the display section 42 or the light guide 30 can go through and expediently causes an elastically resilient mounting of the light guide 30 so that it does not break under the mechanical stresses that are possible in practice and under the thermal expansions that occur.
- the housing 26 is fastened to the ring shoulder 19 with a holder 28 provided on its base 27, for example by screws.
- the bracket 46 has either a nearly closed or, on both sides, approximately up to the housing 26, thin-walled sheet metal ring part or approximately uniformly distributed over the circumferential retaining tabs 47, each having an essentially open to the contact plane, adapted to the cross section of the light guide 30, channel profile 48, in which the light guide 30 is resiliently mounted.
- the channel profile 48 which is approximately semicircular in cross section, merges into a radially inner ring jacket part, fastening tongues 49 or the like, with which the holder 46 is fastened to the carrier 5 or the shell edge 18 of the carrier shell 6.
- the fastening tongues 49 or the like can, overlapping the end edge of the shell edge 19, lie by hanging on the inside of the shell edge 18 and through the outer edge of the insulating support 9 can be secured, but they can also be fastened by screwing or the like.
- the temperature load is significantly lower than with an arrangement within the jet heater, so that halogen lamps with a bulb made of hard glass can be used instead of a quartz bulb.
- the housing 26 is expediently formed on the inside with a reflective surface and on the outside with a light-absorbing, in particular black, surface.
- the embodiment according to FIG. 5 is a so-called dual-circuit radiant heater 1a, the maximum operable heating field 12a of which has a central heating field part 14 and at least one heating field part 13 surrounding it in a ring, each of which is a separate, not shown and manually separately switchable radiant heater have, so that in particular only the central heating field part 14 alone or both heating field parts 13, 14 can be operated together.
- the heating field parts 13, 14 are thermally separated from one another by a ring-shaped inner edge of the insulating support, not shown, for example reaching to the contact level, and with regard to their respective associated display fields.
- a temperature limiter 15, which is also conceivable in the embodiment according to FIGS.
- a further light guide 31 is provided for the status display when the central heating field part 14 is operated alone, the ring-shaped approximately closed and
- display section 43 provided with indented notches 44a may lie on or outside the outer circumference of the inner edge of the insulating support or essentially in the end face of this inner edge and may thereby be held on it.
- One end of the display section 43 which is used directly for the illuminated display, is angled essentially radially outward from the hob 12a to a substantially straight-line light connection section 39, which is used only for light conduction and not for direct light display, and is free of light exits and its radially outer end 37 forms with its end face the only light input 34 of this light guide 31, which is a separate one, but expediently the same as that Light source 21a is formed and is assigned to light source 24, which is located close to it and also lies on the outer circumference of carrier 5a.
- the mutually expediently shielded light sources 21a, 24 can be provided in separate housings or in a common housing.
- the other end 38 of the light guide 31 extends approximately to the angle of the connecting section 39. It can preferably be mirrored to avoid uncontrolled and undesired light phenomena.
- the light exits of the light guide 31 are denoted by 41 and, due to the design described, are assigned to a separate, ring-shaped display field. Otherwise, the same reference numerals as in FIGS. 1 to 4 are used for corresponding parts in FIG. 5, which is why their description applies analogously.
- the illuminated display 20 or 20a according to the invention is expediently operated with low-voltage or low-voltage halogen lamps, which are fed either by a voltage tap of a heating coil forming the associated radiant heater or by a separate transformer.
- the light indicator or its lamp or lamps can be switched via a signal contact of the switching device for manual setting of the radiant heater, this signal contact being able to switch the respective lamp of the light indicator in parallel with a hot signal contact of the temperature limiter.
- this signal contact being able to switch the respective lamp of the light indicator in parallel with a hot signal contact of the temperature limiter.
- switch advises provided switch-on contact for the outer heating circuit appropriately mechanically coupled to a control contact, which is arranged in a relay circuit with self-holding contact, the relay circuit cooperating in the hot indicator circuit of the lamps.
- the light intensity in the case of the hot display can be lower, the hot condition for both parts of the heating field can be displayed separately such that when the central heating field part is hot only the associated display field lights up, while in the hot state of both heating field parts both display fields light up.
- Circuit arrangements for the illuminated display can also be found in DE-OS 36 35 345, to which reference is made for further details and effects.
- a connection 50 which is preferably formed by a multipole plug, is expediently provided for the electrical connection of the illuminated display 20a to the switching device.
- FIG. 6 shows a circuit for a two-circuit radiant heater with associated light indicators, with which the light intensity of the lamps 21b, 24b or both light guides can be controlled depending on the setpoint setting of the manual switching device 51, so that the user has a clue for the amount of the selected settings.
- the switching device 51 to be operated with an adjusting knob 52 or the like which is expediently designed as a clocking energy regulator, has, for example Contacts which can be actuated via an actuating shaft, namely a switching contact 53, 54 for each of the two mains supply lines, and a switching contact 55 for the radiant heater 13b to be connected to the outer heating field part of the radiant heater 1b.
- This switching contact 55 is mechanically coupled to a signal contact 58, while the actuating shaft adjusts a setpoint generator 59, namely, for example, a potentiometer, which, like the signal contact 58 and a hot alarm contact 57, influences control electronics 60.
- the hot alarm contact 57 is a further contact of the temperature limiter switched by the temperature sensor.
- control electronics 60 are acted upon by the potentiometer, which is mechanically coupled to the power control or switching device 51, the signal electronics 58 mechanically coupled to the connection contact 55 for the second heating circuit and the hot signal contact 57 being provided on the input side of the control electronics 60.
- the circuit controls the lamps 21b, 24b continuously from a maximum luminosity with the highest setting of the power control device to a predetermined minimum value with the lowest setting. After the cooking process has ended and the power control device has been switched off, the lamps 21b, 24b continue to light until the hot alarm contact 57 opens. If only the radiant heater 14b of the central heating field part is switched on, only the lamp 24b and light up when the radiant heaters 13b, 14b of both parts of the heating field are switched on, both lamps light up. Otherwise, the same reference numerals are used in FIG. 6 for corresponding parts as in the other figures, but with the index "b", so that the associated description parts apply analogously. 6 also shows the transformer 61 for operating the lamps with low-voltage current.
- the lamp 21 stands in the embodiment shown, it could also be arranged flat on the side, that is to say it could be placed. In this case, the ends of the light guide would not be bent out of the plane of the light guide, see FIG. 3, but would be bent approximately radially outward in the plane.
- the design according to the invention is, inter alia, essentially suitable for all cooking systems in which the energy source for heating is provided above, on or below a translucent or a transparent plate made of glass, glass ceramic or the like.
- the induction coil of an induction hob can be arranged below such a plate.
- an electric hotplate which for example has a metallic hotplate body, can also be installed in an opening of a cooking hob made of hard glass.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Electric Stoves And Ranges (AREA)
- Resistance Heating (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3831233A DE3831233A1 (de) | 1988-09-14 | 1988-09-14 | Heizkoerper |
DE3831233 | 1989-09-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0359028A1 true EP0359028A1 (fr) | 1990-03-21 |
Family
ID=6362932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89115955A Withdrawn EP0359028A1 (fr) | 1988-09-14 | 1989-08-30 | Installation de chauffage |
Country Status (5)
Country | Link |
---|---|
US (1) | US5013893A (fr) |
EP (1) | EP0359028A1 (fr) |
JP (1) | JPH02106621A (fr) |
DE (1) | DE3831233A1 (fr) |
YU (1) | YU178489A (fr) |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0438656A2 (fr) * | 1990-01-26 | 1991-07-31 | Bosch-Siemens HausgerÀ¤te GmbH | Plaque de cuisson |
GB2241322A (en) * | 1990-02-13 | 1991-08-28 | Ego Elektro Blanc & Fischer | Temperature warning light for ceramic hobs |
EP0482854A1 (fr) * | 1990-10-22 | 1992-04-29 | Moorwood Vulcan Limited | Appareil de cuisson |
DE4100767A1 (de) * | 1991-01-12 | 1992-07-23 | Hurst & Schroeder Gmbh | Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung |
EP0499972A1 (fr) * | 1991-02-22 | 1992-08-26 | MMG GLASTECHNIK GmbH | Anneau lumineux pour l'indication les aires de cuisson d'une plaque de cuisson en vitro-céramique |
EP0540876A2 (fr) * | 1991-11-07 | 1993-05-12 | BOSCH-SIEMENS HAUSGERÄTE GmbH | Plaque de cuisson |
EP0627869A1 (fr) * | 1993-06-03 | 1994-12-07 | Seb S.A. | Dispositif de chauffage et de régulation d'une table vitrocéramique |
GB2301760A (en) * | 1995-06-01 | 1996-12-11 | Ceramaspeed Ltd | Light indicator arrangement in an electric cooking plate |
WO2008042805A2 (fr) * | 2006-09-29 | 2008-04-10 | Bose Corporation | Affichage d'informations concernant la cuisson |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5162636A (en) * | 1990-01-17 | 1992-11-10 | E.G.O. Elektro-Gerate Blanc U. Fischer | Electric cooking means |
DE4039664A1 (de) * | 1990-12-12 | 1992-06-17 | Ego Elektro Blanc & Fischer | Einrichtung zur anzeige des heisszustandes von kochplatten und elektrokochplatte |
DE4214509C2 (de) * | 1992-05-01 | 1995-03-09 | Pistor & Boss Gmbh | Elektrische Kochplatte mit Vorrichtung zur Anzeige der Restwärme |
DE19651859C1 (de) * | 1996-12-13 | 1997-12-04 | Schott Glaswerke | Befestigungsvorrichtung für als Kochzonenmarkierung und/oder Restwärmeanzeige dienende Lichtleiter |
US7041945B2 (en) * | 1999-12-02 | 2006-05-09 | Matsushita Electric Industrial Co., Ltd. | Induction heater for cooking |
DE10004446B4 (de) * | 2000-02-03 | 2004-05-06 | E.G.O. Elektro-Gerätebau GmbH | Beleuchtungseinrichtung für eine Heizeinrichtung |
US6300602B1 (en) | 2000-05-26 | 2001-10-09 | Bsh Home Appliances Corporation | Light ring display for cooktop |
US6327427B1 (en) | 2000-06-16 | 2001-12-04 | Mhe Corp. | Space heater and enclosure |
US20030192873A1 (en) * | 2001-02-21 | 2003-10-16 | Lerner William S. | Heat warning safety device using light emitting diodes |
US6806444B2 (en) * | 2001-02-21 | 2004-10-19 | William S. Lerner | Heat warning safety device using fiber optic cables |
US6848822B2 (en) | 2002-05-31 | 2005-02-01 | 3M Innovative Properties Company | Light guide within recessed housing |
DE20217528U1 (de) * | 2002-11-07 | 2003-02-20 | Ego Elektro Geraetebau Gmbh | Anzeigeeinrichtung mit Leuchteinrichtungen für ein Haushalts-Elektrowärmegerät |
US7173221B2 (en) * | 2003-05-28 | 2007-02-06 | Lerner William S | Excessive temperature warning device using warning symbol outside fiber optic cable or light guide |
JP3938164B2 (ja) * | 2004-06-21 | 2007-06-27 | 松下電器産業株式会社 | 誘導加熱調理器 |
JP3938165B2 (ja) * | 2004-06-21 | 2007-06-27 | 松下電器産業株式会社 | 誘導加熱調理器 |
JP3938163B2 (ja) * | 2004-06-21 | 2007-06-27 | 松下電器産業株式会社 | 誘導加熱調理器 |
US7002109B2 (en) * | 2004-07-26 | 2006-02-21 | Klask Richard J | Automatic stove timer and alarm apparatus and method of use |
US7087865B2 (en) * | 2004-10-15 | 2006-08-08 | Lerner William S | Heat warning safety device using fiber optic cables |
US7046918B1 (en) | 2004-11-23 | 2006-05-16 | Mhe Corp. | Space heater with pretreated heat exchanger |
US20070204849A1 (en) * | 2006-02-09 | 2007-09-06 | Johnson Edward T Jr | Ring of fire |
DE102006023702A1 (de) * | 2006-05-19 | 2007-11-22 | BSH Bosch und Siemens Hausgeräte GmbH | Hausgerät, vorzugsweise Kochfeld |
JP4879222B2 (ja) * | 2008-06-06 | 2012-02-22 | 三菱電機株式会社 | 誘導加熱調理器 |
JP2012523543A (ja) * | 2009-04-07 | 2012-10-04 | スアレス コーポレーション インダストリーズ | 持ち運び可能なヒーター |
FR2967236B1 (fr) * | 2010-11-04 | 2014-10-10 | Eurokera | Article vitroceramique lumineux |
US8886024B2 (en) | 2011-06-01 | 2014-11-11 | Suarez Corporation Industries | Portable air conditioning apparatus |
FR3008780B1 (fr) | 2013-07-16 | 2018-03-02 | Schott Ag | Appareil de cuisson comportant des elements lumineux |
ES2880299T3 (es) | 2013-07-16 | 2021-11-24 | Schott Ag | Aparato de cocción con elementos luminosos |
DE202013103165U1 (de) | 2013-07-16 | 2013-09-24 | Schott Ag | Kochgerät mit Lichtelementen |
DE202015008962U1 (de) | 2015-04-24 | 2016-04-28 | Schott Ag | Glas- oder Glaskeramikartikel |
US10314428B2 (en) * | 2015-07-27 | 2019-06-11 | Whirlpool Corporation | Fiber optic light guide for generating illuminated indicia for an electric burner of a heating appliance |
US10314427B2 (en) * | 2015-07-27 | 2019-06-11 | Whirlpool Corporation | Light guide for generating illuminated indicia for an electric burner of a heating appliance |
WO2017108356A1 (fr) * | 2015-12-25 | 2017-06-29 | Arcelik Anonim Sirketi | Plaque à induction comprenant une source lumineuse |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2870316A (en) * | 1956-05-18 | 1959-01-20 | Philco Corp | Heaters |
GB1346574A (fr) * | 1970-03-24 | 1974-02-13 | ||
GB1406028A (en) * | 1971-05-06 | 1975-09-10 | Belling & Co Ltd | Domestic cookers |
DE3501365A1 (de) * | 1985-01-17 | 1986-07-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Glaskeramik-kochfeld |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
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DE42818C (de) * | W. KOCHS, Dozent an der Universität Bonn, und M. WOLZ in Bonn | Reflektor. - Dr | ||
US2140972A (en) * | 1935-07-01 | 1938-12-20 | Bendix Aviat Corp | Means for illuminating dials of instruments |
GB536887A (en) * | 1939-11-29 | 1941-05-30 | Cotton Frank Harriss | Method of and means for directing and diffusing light |
US2346237A (en) * | 1941-06-07 | 1944-04-11 | Gibson Refrigerator Co | Electric range |
US2365864A (en) * | 1942-03-25 | 1944-12-26 | Chapman Harry Edwin | Means of illuminating telephone dials, etc. |
US2452294A (en) * | 1945-07-16 | 1948-10-26 | Chrysler Corp | Instrument lighting |
US2492100A (en) * | 1946-04-20 | 1949-12-20 | Arthur H Kitson | Terminal block and safety light for electric surface cooking units |
US2480393A (en) * | 1947-10-06 | 1949-08-30 | Mark W Bossert | Dial light |
US2659069A (en) * | 1951-09-12 | 1953-11-10 | Magic Chef Inc | Operating signal for electric ranges |
FR1099080A (fr) * | 1954-02-05 | 1955-08-30 | Tech Electronique | Perfectionnements aux dispositifs d'éclairage des cadrans ou analogues |
US3067315A (en) * | 1960-02-08 | 1962-12-04 | Gen Electric | Multi-layer film heaters in strip form |
DE7026934U (de) * | 1970-07-17 | 1971-12-23 | Miele & Cie | Temperaturanzeige bei herden. |
US3718814A (en) * | 1972-03-27 | 1973-02-27 | Gen Motors Corp | Fiber optic illuminator and method of making same |
US4052591A (en) * | 1975-09-19 | 1977-10-04 | Harper-Wyman Company | Infinite switch and indicator |
DE7630251U1 (de) * | 1976-09-28 | 1977-01-20 | Jenaer Glaswerk Schott & Gen., 6500 Mainz | Faseroptisches system fuer signalanzeigevorrichtungen |
EP0052246A1 (fr) * | 1980-11-17 | 1982-05-26 | Bosch-Siemens HausgerÀ¤te GmbH | Appareil électro-ménager |
DE3434536A1 (de) * | 1983-05-21 | 1986-03-20 | Joachim Dipl.-Phys. 5020 Frechen Schick | Lichtleitersystem fuer z.b. kraftfahrzeugrueckleuchtgruppen |
DE3603324A1 (de) * | 1986-02-04 | 1987-08-06 | Bosch Siemens Hausgeraete | Elektrisches hausgeraet |
-
1988
- 1988-09-14 DE DE3831233A patent/DE3831233A1/de not_active Withdrawn
-
1989
- 1989-08-30 EP EP89115955A patent/EP0359028A1/fr not_active Withdrawn
- 1989-09-11 JP JP1233090A patent/JPH02106621A/ja active Pending
- 1989-09-14 YU YU178489A patent/YU178489A/sh unknown
- 1989-09-14 US US07/407,205 patent/US5013893A/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2870316A (en) * | 1956-05-18 | 1959-01-20 | Philco Corp | Heaters |
GB1346574A (fr) * | 1970-03-24 | 1974-02-13 | ||
GB1406028A (en) * | 1971-05-06 | 1975-09-10 | Belling & Co Ltd | Domestic cookers |
DE3501365A1 (de) * | 1985-01-17 | 1986-07-17 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Glaskeramik-kochfeld |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0438656A2 (fr) * | 1990-01-26 | 1991-07-31 | Bosch-Siemens HausgerÀ¤te GmbH | Plaque de cuisson |
EP0438656A3 (en) * | 1990-01-26 | 1992-04-15 | Bosch-Siemens Hausgeraete Gmbh | Cooking plate |
GB2241322A (en) * | 1990-02-13 | 1991-08-28 | Ego Elektro Blanc & Fischer | Temperature warning light for ceramic hobs |
EP0482854A1 (fr) * | 1990-10-22 | 1992-04-29 | Moorwood Vulcan Limited | Appareil de cuisson |
GB2249386B (en) * | 1990-10-22 | 1994-03-30 | Moorwood Vulcan Ltd | Cooker hobs |
DE4100767A1 (de) * | 1991-01-12 | 1992-07-23 | Hurst & Schroeder Gmbh | Leuchtvorrichtung zur kochfeldbegrenzung und verfahren zur herstellung eines lichtleiters fuer eine leuchtvorrichtung |
EP0499972A1 (fr) * | 1991-02-22 | 1992-08-26 | MMG GLASTECHNIK GmbH | Anneau lumineux pour l'indication les aires de cuisson d'une plaque de cuisson en vitro-céramique |
DE4105627A1 (de) * | 1991-02-22 | 1992-08-27 | Mmg Minnahuette Masch Glas | Leuchtring zur kennzeichnung des kochfeldes bei glaskeramikabdeckungen an elektroherden |
EP0540876A3 (en) * | 1991-11-07 | 1993-06-02 | Bosch-Siemens Hausgeraete Gmbh | Cooking hob |
EP0540876A2 (fr) * | 1991-11-07 | 1993-05-12 | BOSCH-SIEMENS HAUSGERÄTE GmbH | Plaque de cuisson |
EP0627869A1 (fr) * | 1993-06-03 | 1994-12-07 | Seb S.A. | Dispositif de chauffage et de régulation d'une table vitrocéramique |
FR2706110A1 (fr) * | 1993-06-03 | 1994-12-09 | Seb Sa | Procédé et circuit de régulation d'éléments chauffants. |
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 |
WO2008042805A2 (fr) * | 2006-09-29 | 2008-04-10 | Bose Corporation | Affichage d'informations concernant la cuisson |
WO2008042805A3 (fr) * | 2006-09-29 | 2008-08-21 | Bose Corp | Affichage d'informations concernant la cuisson |
US7554060B2 (en) | 2006-09-29 | 2009-06-30 | England Raymond O | Displaying cooking-related information |
Also Published As
Publication number | Publication date |
---|---|
DE3831233A1 (de) | 1990-03-22 |
JPH02106621A (ja) | 1990-04-18 |
US5013893A (en) | 1991-05-07 |
YU178489A (sh) | 1992-07-20 |
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