FR2673502A1 - Tray for microwave ovens - Google Patents

Tray for microwave ovens Download PDF

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Publication number
FR2673502A1
FR2673502A1 FR9200412A FR9200412A FR2673502A1 FR 2673502 A1 FR2673502 A1 FR 2673502A1 FR 9200412 A FR9200412 A FR 9200412A FR 9200412 A FR9200412 A FR 9200412A FR 2673502 A1 FR2673502 A1 FR 2673502A1
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France
Prior art keywords
tray
microwave
oven
microwave absorbing
tray 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.)
Pending
Application number
FR9200412A
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French (fr)
Inventor
Choi Jae Chul
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Individual
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Individual
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Publication of FR2673502A1 publication Critical patent/FR2673502A1/en
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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
    • H05B6/00—Heating by electric, magnetic or electromagnetic fields
    • H05B6/64—Heating using microwaves
    • H05B6/647—Aspects related to microwave heating combined with other heating techniques
    • H05B6/6491—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors
    • H05B6/6494—Aspects related to microwave heating combined with other heating techniques combined with the use of susceptors for cooking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B65D81/3453—Rigid containers, e.g. trays, bottles, boxes, cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/344—Geometry or shape factors influencing the microwave heating properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3448—Binders for microwave reactive materials, e.g. for inks or coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3477—Iron or compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3482—Ceramic compositions, e.g. vermiculite, bentonite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3494—Microwave susceptor

Abstract

The invention relates to a tray for microwave ovens. It relates to a tray (1) comprising a material (3) which absorbs microwaves. This material may be a conventional material such as a ferrite, carbon, a dielectric material or a mixture of carbon and ferrite, and preferably a material which radiates in the far infrared. The material (3) may be dispersed in a silicone resin which has a high heat resistance then fixed to a conventional tray. The microwave-absorbent material may also be dispersed in an enamel then fixed to the conventional tray (1) by spraying or deposition. Application to microwave ovens.

Description

La présente invention concerne un plateau et plus précisément un plateau destiné à être utilisé dans un four à microondes. The present invention relates to a tray and more specifically a tray for use in a microwave oven.

Un four classique à microondes est muni d'un plateau destiné à supporter un plat de cuisson qui peut être placé par-dessus. A conventional microwave oven is provided with a tray intended to support a baking dish which can be placed on top.

Lorsque 11 aliment du plat de cuisson est chauffé, la chaleur de l'aliment est conduite au plat de cuisson puis au plateau du four. En conséquence, la chaleur est rayonnée vers l'extérieur du four et provoque des pertes d'énergie. When the food in the baking dish is heated, the heat of the food is conducted to the baking dish and then to the oven tray. As a result, the heat is radiated to the outside of the oven and causes energy losses.

En outre, dans le cas où le plateau du four est formé de verre ou de céramique, il peut être brisé par la chaleur conduite.In addition, in the case where the oven tray is formed of glass or ceramic, it can be broken by the conducted heat.

En outre, des microondes peuvent s'échapper par un espace formé entre une cavité délimitée par un coffret et la porte du coffret. Ces fuites de microondes sont nuisibles pour le corps humain et créent du bruit dans les appareillages électroniques entourant le four. In addition, microwaves can escape through a space formed between a cavity defined by a cabinet and the cabinet door. These microwave leaks are harmful to the human body and create noise in the electronic equipment surrounding the oven.

Ainsi, il est courant de placer un organe d'absorption de microondes entre la face avant du four à microondes et une porte du four, ou de réaliser un espace entre la porte et la face avant du four de manière que sa dimension soit inférieure à 0,6 mm. Ce type de four à microondes est décrit dans les brevets des Etats-Unis d'Amérique n" 3 866 009, 4 602 141, 4 525 614 et 4 046 983, ainsi que dans le brevet britannique n" 2 083 329. Ce type de four à microondes présente des inconvénients car un excès de microondes peut s'échapper lors du fonctionnement du four à l'état vide, et il est difficile de fabriquer un four à microondes ayant un espace inférieur à 0,6 mm, si bien que la productivité est réduite. Thus, it is common to place a microwave absorption member between the front face of the microwave oven and a door of the oven, or to make a space between the door and the front face of the oven so that its dimension is less than 0.6 mm. This type of microwave oven is described in US Pat. Nos. 3,866,009, 4,602,141, 4,525,614 and 4,046,983, as well as in British Patent No. 2,083,329. microwave oven has drawbacks because an excess of microwave can escape during the operation of the oven in an empty state, and it is difficult to manufacture a microwave oven with a space less than 0.6 mm, so that productivity is reduced.

L'invention concerne un plateau de four qui ne crée pas de pertes d'énergie thermique si bien qu'il permet une cuisson rapide de l'aliment. The invention relates to an oven tray which does not create losses of thermal energy so that it allows rapid cooking of the food.

L'invention concerne aussi un plateau de four qui facilite la fabrication d'un four à microondes.  The invention also relates to an oven tray which facilitates the manufacture of a microwave oven.

L'invention concerne aussi un plateau de four qui n'est pas brisé pendant une longue utilisation. The invention also relates to an oven tray which is not broken during long use.

Elle concerne aussi un plateau de four qui empêche les fuites des microondes par un espace formé entre la porte du four et sa cavité. It also relates to an oven tray which prevents microwave leakage through a space formed between the oven door and its cavity.

A cet effet, un organe d'absorption de microondes est incorporé au plateau classique de four. Pendant le fonctionnement du four de chauffage à microondes, le plateau du four selon l'invention absorbe l'énergie supplémentaire des microondes et crée de la chaleur en quantité légèrement supérieure à la chaleur nécessaire à l'aliment, si bien que la chaleur provenant de l'aliment ne peut pas être conduite vers le plateau du four et ne crée donc aucune perte d'énergie, l'aliment placé dans le plateau de cuisson disposé sur le plateau de four est cuit rapidement, et le plateau du four ne peut pas être brisé par la chaleur conduite vers lui. Comme de l'infrarouge lointain est en outre rayonné par le matériausabsorbant les microondes, le goût des aliments est amélioré.En outre, comme la face inférieure du plat de cuisson est au contact de l'organe d'absorption des microondes, un plateau rotatif de four ne peut pas glisser. To this end, a microwave absorption member is incorporated into the conventional oven tray. During the operation of the microwave heating oven, the tray of the oven according to the invention absorbs the additional microwave energy and creates heat in a quantity slightly greater than the heat necessary for the food, so that the heat coming from the food cannot be led to the oven tray and therefore does not create any loss of energy, the food placed in the baking tray placed on the oven tray is cooked quickly, and the oven tray cannot be broken by the heat driving towards it. As far infrared is further radiated by the microwave-absorbing material, the taste of the food is improved. In addition, as the underside of the baking dish is in contact with the microwave absorption member, a turntable cannot slide.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description qui va suivre d'exemples de réalisation, faite en référence aux dessins annexés sur lesquels
la figure 1 est une coupe d'un premier mode de réalisation de plateau de four selon l'invention ;
la figure 2 est une coupe d'un second mode de réalisation de plateau de four selon l'invention
les figures 3(A) et 3(B) sont des vues en plan du second mode de réalisation de plateau de four selon 1 ' invention
la figure 4 est une coupe du troisième mode de réalisation de plateau de four de l'invention ;;
les figures 5(A) et 5(B) sont des vues en plan du troisième mode de réalisation du plateau de four selon l'invention
la figure 6 est une coupe d'un quatrième mode de réalisation de plateau de four selon l'invention
la figure 7 est une vue en plan du quatrième mode de réalisation de plateau de four selon l'invention ; et
la figure 8 est une coupe d'un premier mode de réalisation de plateau de four selon l'invention. Other characteristics and advantages of the invention will be better understood on reading the description which will follow of exemplary embodiments, made with reference to the appended drawings in which
Figure 1 is a section of a first embodiment of the oven tray according to the invention;
Figure 2 is a section of a second embodiment of the oven tray according to the invention
Figures 3 (A) and 3 (B) are plan views of the second embodiment of the oven tray according to the invention
Figure 4 is a section of the third embodiment of the oven tray of the invention;
Figures 5 (A) and 5 (B) are plan views of the third embodiment of the oven tray according to the invention
Figure 6 is a section of a fourth embodiment of the oven tray according to the invention
Figure 7 is a plan view of the fourth embodiment of the oven tray according to the invention; and
Figure 8 is a section of a first embodiment of the oven tray according to the invention.

On se réfère à la figure 1 qui représente un plateau rotatif classique formé de métal et d'un matériau céramique ou de verre et qui a une cavité 2 de logement d'un arbre d'entraînement. Un organe 3 d'absorption des microondes est placé à la surface du plateau de four. Referring to Figure 1 which shows a conventional rotary plate formed of metal and a ceramic or glass material and which has a cavity 2 for housing a drive shaft. A microwave absorption member 3 is placed on the surface of the oven tray.

L'organe 3 d'absorption est formé V d'une ferrite, de carbone d'un matériau diélectrique, d'un matériau à base de carbone et d'une ferrite ou d'un matériau rayonnant dans l'infrarouge lointain. L'organe 3 d'absorption des microondes a une configuration plate ou non et est fixé au plateau par les deux procédés suivants. D'abord, les matériaux absorbant les microondes décrits précédemment sont dispersés dans une résine de silicone ayant une bonne résistance à la chaleur, puis fixés au plateau. The absorption member 3 is formed V of a ferrite, carbon of a dielectric material, a carbon-based material and a ferrite or a material radiating in the far infrared. The microwave absorption member 3 has a flat configuration or not and is fixed to the plate by the following two methods. First, the microwave-absorbing materials described above are dispersed in a silicone resin having good heat resistance, and then fixed to the tray.

Ensuite, les matériaux absorbant les microondes sont dispersés dans un véhicule ou un émail puis fixés au plateau par pulvérisation ou dépôt. Then, the microwave absorbing materials are dispersed in a vehicle or an enamel and then fixed to the plate by spraying or deposition.

Sur la figure 1, le matériau absorbant les microondes est fixé aux deux faces du plateau, mais il peut être fixé d'un seul côté du plateau. L'épaisseur du matériau absorbant décrit peut varier suivant la nature du matériau mais il est souhaitable qu'elle soit minimale. Cependant, l'épaisseur doit être telle que le matériau absorbant les microondes peut créer une quantité de chaleur légèrement supérieure à celle qui provient de l'aliment puisque les matériaux absorbant les microondes ont la caractéristique, lorsqu'ils ont absorbé des microondes, de transformer celles-ci en énergie thermique en dégageant de la chaleur.  In Figure 1, the microwave absorbing material is attached to both sides of the tray, but it can be attached to one side of the tray. The thickness of the absorbent material described may vary depending on the nature of the material, but it is desirable that it be minimal. However, the thickness must be such that the microwave absorbing material can create a slightly greater amount of heat than that which comes from the food since microwave absorbing materials have the characteristic, when they have absorbed microwaves, of transforming these in thermal energy by giving off heat.

I1 est préférable que le matériau absorbant les microondes soit formé dlun matériau à base de carbone et d'une ferrite et il est très avantageux que ce matériau soit formé d'un matériau pouvant rayonner des rayons infrarouges lointains. Le matériau rayonnant l'infrarouge lointain peut être un mélange calciné de matériaux magnétiques et minéraux, du type décrit dans la demande de brevet coréen n" 91-903. It is preferable that the microwave absorbing material is formed of a carbon-based material and a ferrite and it is very advantageous that this material is formed of a material capable of radiating far infrared rays. The far infrared radiating material can be a calcined mixture of magnetic and mineral materials, of the type described in Korean patent application No. 91-903.

Par exemple, une combinaison de carbone et de ferrite (composition de poudre de carbone et de poudre de ferrite dans un rapport de 25/75 d en poids) a été mélangée à une résine de silicone ou de l'argile dans un rapport de 30/70 % en poids. Le mélange de 2 mm d'épaisseur a été placé à la face supérieure du plateau de four. Un four à microondes ayant un plateau de four placé à l'intérieur a fonctionné pendant 3 min. La chaleur était telle que la température a atteint 120 "C. Dans un autre cas, une ferrite et de la cordiérite ont été mélangées et calcinées dans un rapport de 30/70 % en poids. Le mélange de 1,5 mm d'épaisseur a été placé à la face supérieure du plateau classique de four. La température a atteint 110 "C pendant le fonctionnement du four. For example, a combination of carbon and ferrite (composition of carbon powder and ferrite powder in a ratio of 25/75 d by weight) was mixed with a silicone resin or clay in a ratio of 30 / 70% by weight. The 2 mm thick mixture was placed on the upper face of the oven tray. A microwave oven having an oven tray placed inside operated for 3 min. The heat was such that the temperature reached 120 "C. In another case, a ferrite and cordierite were mixed and calcined in a ratio of 30/70% by weight. The mixture 1.5 mm thick was placed on the upper side of the conventional oven tray. The temperature reached 110 "C during oven operation.

Les figures 2, 3(A) et 3(B) représentent un second mode de réalisation de l'invention. La différence par rapport au premier mode de réalisation est le fait que le matériau absorbant les microondes 3 est placé sur la partie limite du plateau du four 1. Ainsi, le matériau absorbant, réalisé sous forme de saillies de configuration quelconque, est fixé à la face supérieure ou à la face inférieure du plateau 1. La quantité du matériau absorbant les microondes est la même que dans le premier mode de réalisation. Figures 2, 3 (A) and 3 (B) show a second embodiment of the invention. The difference compared to the first embodiment is the fact that the microwave absorbing material 3 is placed on the limit part of the tray of the oven 1. Thus, the absorbent material, produced in the form of projections of any configuration, is fixed to the upper face or lower face of the tray 1. The amount of microwave absorbing material is the same as in the first embodiment.

Les figures 4, 5(A) et 5(B) représentent un troisième mode de réalisation de l'invention. La différence par rapport au premier mode de réalisation est que les matériaux absorbants sont placés sur un plateau non rotatif ou amovible. Ainsi, des gorges circulaires ou allongées sont formées dans le plateau et le matériau absorbant 3 est introduit dans les gorges, la face supérieure du matériau absorbant 3 étant mise au niveau de la face supérieure du plateau 1 ou en dépassant. Le matériau absorbant peut être placé sur les deux faces du plateau 3 ou sur une seule face, et la quantité du matériau absorbant est la même que dans le premier exemple. Figures 4, 5 (A) and 5 (B) show a third embodiment of the invention. The difference compared to the first embodiment is that the absorbent materials are placed on a non-rotating or removable tray. Thus, circular or elongated grooves are formed in the tray and the absorbent material 3 is introduced into the grooves, the upper face of the absorbent material 3 being placed at or above the upper face of the tray 1. The absorbent material can be placed on both sides of the tray 3 or on one side, and the amount of the absorbent material is the same as in the first example.

La figure 6 est une coupe d'un quatrième mode de réalisation de l'invention. Lors de la fabrication d'un plateau rotatif ou amovible d'un matériau céramique ou de verre, le matériau absorbant, analogue à celui du premier mode de réalisation, est mélangé au plateau de verre ou de céramique et est calciné. Dans ce mode de réalisation, le mélange de ferrite et de cordiérite dans un rapport de 25/75 g en poids a été utilisé, et la température a atteint 130 "C.  Figure 6 is a section through a fourth embodiment of the invention. During the manufacture of a rotary or removable tray of a ceramic or glass material, the absorbent material, similar to that of the first embodiment, is mixed with the glass or ceramic tray and is calcined. In this embodiment, the mixture of ferrite and cordierite in a ratio of 25/75 g by weight was used, and the temperature reached 130 "C.

Les figures 7 et 8 représentent un cinquième mode de réalisation de l'invention. La différence par rapport au premier mode de réalisation est que des trous de configuration quelconque sont percés dans le plateau de four, en particulier dans le plateau rotatif, et des matériaux absorbants les microondes sont introduits dans les trous. Figures 7 and 8 show a fifth embodiment of the invention. The difference compared to the first embodiment is that holes of any configuration are drilled in the oven tray, in particular in the rotary tray, and microwave-absorbent materials are introduced into the holes.

Bien entendu, diverses modifications peuvent être apportées par l'homme de l'art au plateau de four qui vient d'être décrit uniquement à titre d'exemple non limitatif, sans sortir du cadre de l'invention.  Of course, various modifications can be made by those skilled in the art to the oven tray which has just been described solely by way of non-limiting example, without departing from the scope of the invention.

Claims (10)

REVENDICATIONS 1. Plateau de four à microondes, destiné à être utilisé dans un four de chauffage à microondes, caractérisé en ce qu'il comporte un organe d'absorption des microondes (3). 1. Microwave oven tray, intended for use in a microwave heating oven, characterized in that it comprises a microwave absorption member (3). 2. Plateau selon la revendication 1, caractérisé en ce que l'organe absorbant les microondes (3) est placé à une surface au moins du plateau. 2. Tray according to claim 1, characterized in that the microwave absorbing member (3) is placed on at least one surface of the tray. 3. Plateau selon la revendication 1, caractérisé en ce que organe absorbant les microondes (3) est placé dans une partie du plateau. 3. Tray according to claim 1, characterized in that the microwave absorbing member (3) is placed in a part of the tray. 4. Plateau selon la revendication 1, caractérisé en ce que l'organe absorbant les microondes (3) a des saillies. 4. Tray according to claim 1, characterized in that the microwave absorbing member (3) has projections. 5. Plateau selon la revendication 1, caractérisé en ce que l'organe absorbant les microondes (3) a une propriété de rayonnement de rayons infrarouges lointains. 5. Tray according to claim 1, characterized in that the microwave absorbing member (3) has a property of radiation of far infrared rays. 6. Plateau selon la revendication 1, caractérisé en ce que organe absorbant les microondes (3) a une propriété de dégagement de chaleur. 6. Tray according to claim 1, characterized in that the microwave absorbing member (3) has a heat release property. 7. Plateau selon la revendication 1, caractérisé en ce que le plateau a des trous (1') qui le traversent. 7. Tray according to claim 1, characterized in that the tray has holes (1 ') which pass through it. 8. Plateau selon la revendication 3, caractérisé en ce que le matériau absorbant les microondes (3) dépasse du plateau. 8. Tray according to claim 3, characterized in that the microwave absorbing material (3) protrudes from the tray. 9. Plateau selon la revendication 3, caractérisé en ce que le matériau absorbant les microondes (3) se trouve au même niveau que le plateau. 9. Tray according to claim 3, characterized in that the microwave absorbing material (3) is at the same level as the tray. 10. Plateau de four à microondes destiné à être utilisé dans un four de chauffage à microondes, caractérisé en ce que le plateau est formé par mélange d'un matériau céramique ou de verre à un matériau absorbant les microondes, par moulage à la configuration du plateau, puis par calcination.  10. Microwave oven tray for use in a microwave heating oven, characterized in that the tray is formed by mixing a ceramic or glass material with a microwave absorbing material, by molding to the configuration of the plateau, then by calcination.
FR9200412A 1991-01-18 1992-01-16 Tray for microwave ovens Pending FR2673502A1 (en)

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KR910000721 1991-01-18
KR910014701 1991-08-24

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JP (1) JPH0521155A (en)
CN (1) CN1063348A (en)
CA (1) CA2059083A1 (en)
DE (1) DE4200708A1 (en)
FR (1) FR2673502A1 (en)
GB (1) GB2252027A (en)

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Also Published As

Publication number Publication date
CN1063348A (en) 1992-08-05
GB2252027A (en) 1992-07-22
JPH0521155A (en) 1993-01-29
DE4200708A1 (en) 1992-07-23
GB9200853D0 (en) 1992-03-11
CA2059083A1 (en) 1992-07-19

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