CA2062259A1 - Coffee or tea machine with at least one heating unit - Google Patents
Coffee or tea machine with at least one heating unitInfo
- Publication number
- CA2062259A1 CA2062259A1 CA 2062259 CA2062259A CA2062259A1 CA 2062259 A1 CA2062259 A1 CA 2062259A1 CA 2062259 CA2062259 CA 2062259 CA 2062259 A CA2062259 A CA 2062259A CA 2062259 A1 CA2062259 A1 CA 2062259A1
- Authority
- CA
- Canada
- Prior art keywords
- coffee
- heating
- heating unit
- tea machine
- heating foil
- 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.)
- Abandoned
Links
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
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
- H05B3/12—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material
- H05B3/14—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor characterised by the composition or nature of the conductive material the material being non-metallic
- H05B3/146—Conductive polymers, e.g. polyethylene, thermoplastics
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/4403—Constructional details
- A47J31/441—Warming devices or supports for beverage containers
- A47J31/4425—Supports for beverage containers when filled or while being filled
- A47J31/4432—Supports for beverage containers when filled or while being filled with means for keeping the beverage warm
- A47J31/4435—Heated support plates
- A47J31/4442—Heated support plates in combination with a continuous-flow heater for the water
- A47J31/445—Heated support plates in combination with a continuous-flow heater for the water an electrical heating element being used for the flow-through heater
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J31/00—Apparatus for making beverages
- A47J31/44—Parts or details or accessories of beverage-making apparatus
- A47J31/54—Water boiling vessels in beverage making machines
- A47J31/542—Continuous-flow heaters
Abstract
ABSTRACT
A coffee or tea machine having at least one heating unit, wherein the heating unit comprises a multilayered heating foil consisting of electrically conductive plastic foils applied to both sides of a middle layer of carbon particles. The exterior of the heating foil may be covered with an insulating layer.
The heating foil of this design is extremely flat, so that size requirements in a coffee or tea machine become less important, and inherently prevents overheating because its resistance increases with temperature.
A coffee or tea machine having at least one heating unit, wherein the heating unit comprises a multilayered heating foil consisting of electrically conductive plastic foils applied to both sides of a middle layer of carbon particles. The exterior of the heating foil may be covered with an insulating layer.
The heating foil of this design is extremely flat, so that size requirements in a coffee or tea machine become less important, and inherently prevents overheating because its resistance increases with temperature.
Description
2~225~
This invention concerns a cof~ee or tea machine with at least one heatiny unit, for example to heat a warming plate, the brewiny water and the like.
Up to now, the heating units of coffee or tea machines with at least one heating unit have been designed for the relevant specific application.
For example, different heating units are used for continuous flow heaters and to heat warming plates.
The heating units used are often also relatively large so that the need for a laryer amount of space has to be taken into account in designing coffee or tea machines.
Temperature-dependent control elements often have to be provided for heating units of coffee or tea machines in order to ensure that they are definitely prevented from overheating.
This invention is based on the problem of avoiding all of the aforesaid disadvantages and of creating a coffee or tea machine which does not require complicated control systems for the heating unit or units and which requires that only very little consideration be given to the size and shape of the heating unit or units in designing the machine.
In accordance with the invention, a heating unit made of a multilayer heating foil consisting of a middle layer of carbon particles embedded in plastic as well as of electrically conductive plastic foils which are applied to both sides of the middle layer are used as a solution to this problem.
-2~ 2 ~ ~
Use of such a hea~ing foil offers a multitu~e of advan tages .
On the one han~, such a heating ~oil is extremely flat and, therefore, is suitable to be adapted optimally for different application without excessive consideration having to be given to the design of the parts to be heated. In addition, such a heating foil is itself secured to some extent against overheating, because the carbon particles, which serve as elèctrical resistance elements, alter the distances between themselves when heated and, therefore, increase the resistance. This increase in resistance prevents the heating foil overheating even without special control elements being required.
Depending Oll the application, it may be necessary to cover the exterior of the heating foil with insulating layers. However, the side facing the appliance may also be insulated.
This is especially important if the heating foil is brought into contact with other electrically conductive materials. For example this may be the case if the heating foil is used to form a continuous flow heater.
The present invention thus provides a coffee or tea machine with at least one heating unit, for example to heat a warming plate, to heat the brewing water, and the like, characterized by the use of a heating unit made of a multilayered heating foil consisting of a middle layer made of carbon particles embedded in plastic as well as of electrically conductive plastic foils which are applied to both sides of the middle layer.
This invention concerns a cof~ee or tea machine with at least one heatiny unit, for example to heat a warming plate, the brewiny water and the like.
Up to now, the heating units of coffee or tea machines with at least one heating unit have been designed for the relevant specific application.
For example, different heating units are used for continuous flow heaters and to heat warming plates.
The heating units used are often also relatively large so that the need for a laryer amount of space has to be taken into account in designing coffee or tea machines.
Temperature-dependent control elements often have to be provided for heating units of coffee or tea machines in order to ensure that they are definitely prevented from overheating.
This invention is based on the problem of avoiding all of the aforesaid disadvantages and of creating a coffee or tea machine which does not require complicated control systems for the heating unit or units and which requires that only very little consideration be given to the size and shape of the heating unit or units in designing the machine.
In accordance with the invention, a heating unit made of a multilayer heating foil consisting of a middle layer of carbon particles embedded in plastic as well as of electrically conductive plastic foils which are applied to both sides of the middle layer are used as a solution to this problem.
-2~ 2 ~ ~
Use of such a hea~ing foil offers a multitu~e of advan tages .
On the one han~, such a heating ~oil is extremely flat and, therefore, is suitable to be adapted optimally for different application without excessive consideration having to be given to the design of the parts to be heated. In addition, such a heating foil is itself secured to some extent against overheating, because the carbon particles, which serve as elèctrical resistance elements, alter the distances between themselves when heated and, therefore, increase the resistance. This increase in resistance prevents the heating foil overheating even without special control elements being required.
Depending Oll the application, it may be necessary to cover the exterior of the heating foil with insulating layers. However, the side facing the appliance may also be insulated.
This is especially important if the heating foil is brought into contact with other electrically conductive materials. For example this may be the case if the heating foil is used to form a continuous flow heater.
The present invention thus provides a coffee or tea machine with at least one heating unit, for example to heat a warming plate, to heat the brewing water, and the like, characterized by the use of a heating unit made of a multilayered heating foil consisting of a middle layer made of carbon particles embedded in plastic as well as of electrically conductive plastic foils which are applied to both sides of the middle layer.
-3~ 2~
l'he enclosed drawings illuc;trate an embodiment of the invention which is described in more detail below.
The figures show:
Fig. 1 is a diagrammatic view of a coffee or tea machine with a continuous flow heater and a warming plate;
Fig. 2 is a vertical section through the warming plate with the continuous flow heater located underneath it; and Fig. 3 is an enlarged sectional view of the detail designated III in Fig. 2.
The coffee or tea machine illustrated in Fig. 1 and designated overall with the reference number 20 has a fresh water container l, a continuous flow heater 2, an ascending pipe 3, a discharge pipe 4, a filter holder 5 and a pot 6.
The pot 6 sits on a warming plate 7 in the base area of the coffee or tea machine 20. In accordance with the known principle of coffee or tea machines, the water contained in the fresh water container 1 is heated in the continuous flow heater 2, fed via the ascsnding pipe 3 and the discharge pipe 4 into the filter holder 5 from which, after the aroma has been extracted from an aroma carrier li]ce coffee or tea, the beverage produced is collected in the pot 6. The beverage in the pot 6 is then kept at a high temperature by the warming plate 7.
As Fig. 2 clearly shows, the heating units required to operate the continuous flow heater 2 are made of multilayered heating foils.
~, 20~225~
In the case of the aontinuous ~low heater 2, an appropriate pipe section of a metal pipe 20 is covered with such a multilayered heating foil.
The multilayered heating ~oil for both the continuous flow heater 2 and the warming plate 7 consists of a middle la~er 8 made o~ carbon particles embedded in plastic as well as of electricall~ conductive plastic ~oils 9 which are applied to both sides of the middle layer. Ideally, the exterior of the heating foil is covered with insulating layers 10.
In general, the multilayered heating ~oil is so thin that the heating units required to operate the continuous flow heater 2 and/or the warming plate 7 require very little space. The heating foil may consist of pipe-shaped sections in order to cover the continuous flow heater 2.
The multilayered heating foil also has the advantage that control elements are not required in order to limit the temperature, because the distance between the carbon particles of the middle layer 8 which serve as a resistance elements increases when the particles are heated, resulting in a corresponding increase in resistance. This increase in resistance does not allow the temperature to exceed a pre-determined limit.
Consequently, such a multilayered heating foil is an ideal heating unit for coffee or tea machines, because it is both space-saving and can be used easily and without additional control elements to prevent overheating.
l'he enclosed drawings illuc;trate an embodiment of the invention which is described in more detail below.
The figures show:
Fig. 1 is a diagrammatic view of a coffee or tea machine with a continuous flow heater and a warming plate;
Fig. 2 is a vertical section through the warming plate with the continuous flow heater located underneath it; and Fig. 3 is an enlarged sectional view of the detail designated III in Fig. 2.
The coffee or tea machine illustrated in Fig. 1 and designated overall with the reference number 20 has a fresh water container l, a continuous flow heater 2, an ascending pipe 3, a discharge pipe 4, a filter holder 5 and a pot 6.
The pot 6 sits on a warming plate 7 in the base area of the coffee or tea machine 20. In accordance with the known principle of coffee or tea machines, the water contained in the fresh water container 1 is heated in the continuous flow heater 2, fed via the ascsnding pipe 3 and the discharge pipe 4 into the filter holder 5 from which, after the aroma has been extracted from an aroma carrier li]ce coffee or tea, the beverage produced is collected in the pot 6. The beverage in the pot 6 is then kept at a high temperature by the warming plate 7.
As Fig. 2 clearly shows, the heating units required to operate the continuous flow heater 2 are made of multilayered heating foils.
~, 20~225~
In the case of the aontinuous ~low heater 2, an appropriate pipe section of a metal pipe 20 is covered with such a multilayered heating foil.
The multilayered heating ~oil for both the continuous flow heater 2 and the warming plate 7 consists of a middle la~er 8 made o~ carbon particles embedded in plastic as well as of electricall~ conductive plastic ~oils 9 which are applied to both sides of the middle layer. Ideally, the exterior of the heating foil is covered with insulating layers 10.
In general, the multilayered heating ~oil is so thin that the heating units required to operate the continuous flow heater 2 and/or the warming plate 7 require very little space. The heating foil may consist of pipe-shaped sections in order to cover the continuous flow heater 2.
The multilayered heating foil also has the advantage that control elements are not required in order to limit the temperature, because the distance between the carbon particles of the middle layer 8 which serve as a resistance elements increases when the particles are heated, resulting in a corresponding increase in resistance. This increase in resistance does not allow the temperature to exceed a pre-determined limit.
Consequently, such a multilayered heating foil is an ideal heating unit for coffee or tea machines, because it is both space-saving and can be used easily and without additional control elements to prevent overheating.
Claims (2)
1. Coffee or tea machine with at least one heating unit, for example to heat a warming plate, to heat the brewing water, and the like, characterized by the use of a heating unit made of a multilayered heating foil consisting of a middle layer made of carbon particles embedded in plastic as well as of electrically conductive plastic foils which are applied to both sides of the middle layer.
2. Coffee or tea machine in accordance with Claim 1 characterized by the heating foil being covered externally with insulating layers.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4107384.3 | 1991-03-08 | ||
| DE19914107384 DE4107384A1 (en) | 1991-03-08 | 1991-03-08 | COFFEE OR TEA MACHINE WITH AT LEAST ONE HEATING UNIT |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2062259A1 true CA2062259A1 (en) | 1992-09-09 |
Family
ID=6426732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2062259 Abandoned CA2062259A1 (en) | 1991-03-08 | 1992-03-04 | Coffee or tea machine with at least one heating unit |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0503230A1 (en) |
| JP (1) | JPH0568644A (en) |
| CN (1) | CN1064802A (en) |
| CA (1) | CA2062259A1 (en) |
| DE (1) | DE4107384A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161132A1 (en) * | 2014-04-16 | 2015-10-22 | Spectrum Brands, Inc. | Fluid heating appliance |
| WO2015161120A1 (en) * | 2014-04-16 | 2015-10-22 | Spectrum Brands, Inc. | Portable container system for heating a beverage |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE29822355U1 (en) * | 1998-12-15 | 2000-05-11 | Bleckmann Gmbh Lamprechtshause | Heat distribution element |
| DE19927057C2 (en) * | 1999-06-14 | 2001-10-04 | Eberhard Barnikol | Flow heating and coffee machine with one |
| ITMI20031824A1 (en) * | 2003-09-24 | 2005-03-25 | De Longhi Spa | DEVICE AND PROCEDURE FOR THE PREPARATION OF A COFFEE BEVERAGE. |
| DE202010005438U1 (en) * | 2010-05-12 | 2011-10-12 | Melitta Haushaltsprodukte Gmbh & Co. Kg | household appliance |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2605523C3 (en) * | 1976-02-12 | 1981-05-07 | Melitta-Werke Bentz & Sohn, 4950 Minden | Coffee or tea machine |
| KR910003403B1 (en) * | 1986-08-12 | 1991-05-30 | 미쯔보시 벨트 가부시끼가이샤 | Heating rubber composition |
| JPH0279593U (en) * | 1988-12-06 | 1990-06-19 |
-
1991
- 1991-03-08 DE DE19914107384 patent/DE4107384A1/en not_active Withdrawn
-
1992
- 1992-01-15 EP EP92100553A patent/EP0503230A1/en not_active Withdrawn
- 1992-03-04 CA CA 2062259 patent/CA2062259A1/en not_active Abandoned
- 1992-03-05 JP JP4048710A patent/JPH0568644A/en active Pending
- 1992-03-08 CN CN 92101485 patent/CN1064802A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015161132A1 (en) * | 2014-04-16 | 2015-10-22 | Spectrum Brands, Inc. | Fluid heating appliance |
| WO2015161120A1 (en) * | 2014-04-16 | 2015-10-22 | Spectrum Brands, Inc. | Portable container system for heating a beverage |
| US9642191B2 (en) | 2014-04-16 | 2017-05-02 | Spectrum Brands, Inc. | Portable container system for heating a beverage |
| US9854824B2 (en) | 2014-04-16 | 2018-01-02 | Spectrum Brands, Inc. | Heating appliance |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0568644A (en) | 1993-03-23 |
| DE4107384A1 (en) | 1992-09-10 |
| EP0503230A1 (en) | 1992-09-16 |
| CN1064802A (en) | 1992-09-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2051861C (en) | Domestic cooking apparatus | |
| DE3545442C2 (en) | ||
| DE60216053T2 (en) | APPARATUS AND METHOD FOR FAST HEATING OF PACKED MEALS | |
| KR100352327B1 (en) | Cookware | |
| CN100522028C (en) | A device for maintaining temperature in food and drink | |
| KR950030941A (en) | Cooking & Boiling Combination | |
| US2570975A (en) | Electric heating element | |
| US3971361A (en) | Low thermal mass cooking utensil | |
| CN1228239A (en) | Heating element | |
| CA2062259A1 (en) | Coffee or tea machine with at least one heating unit | |
| EP1841289B1 (en) | Device for preparing and/or keeping warm cooked foods | |
| US6138554A (en) | Multi-layer griddle | |
| DE7736873U1 (en) | COOKING PLATE, PREFERABLY CERAMIC GLASS HOB | |
| EP1170980B1 (en) | Heater device for household appliances | |
| DE202015105700U1 (en) | Vielzweckerhitzer | |
| KR101110498B1 (en) | Heatable Double Vessel and Manufacturing Method thereof | |
| WO2007071568A1 (en) | A cooking container for induction heaters | |
| WO2011104094A1 (en) | Device for heating liquids | |
| DE3817438C2 (en) | ||
| DE102018001777A1 (en) | Warming zones in kitchen worktops and processes for their manufacture and heatable object, control, automatic temperature control of holding zones in kitchen worktops | |
| JP2003125928A (en) | Electromagnetic cooker vessel | |
| EP1115316A1 (en) | Electric cooking pot | |
| CN2343943Y (en) | Special-purpose cooking pan for electromagnetic stove | |
| CN2329285Y (en) | Tea maker | |
| DE20308794U1 (en) | Electric food warmer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |