US20010023866A1 - Temperature-preserving electrically heated cooker - Google Patents

Temperature-preserving electrically heated cooker Download PDF

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Publication number
US20010023866A1
US20010023866A1 US09/811,460 US81146001A US2001023866A1 US 20010023866 A1 US20010023866 A1 US 20010023866A1 US 81146001 A US81146001 A US 81146001A US 2001023866 A1 US2001023866 A1 US 2001023866A1
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Prior art keywords
temperature
preserving
electrically heated
heating
heated cooker
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Granted
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US09/811,460
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US6340807B2 (en
Inventor
Dongming Wang
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Individual
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Individual
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Priority claimed from CN 00227688 external-priority patent/CN2420953Y/en
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    • 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
    • A47J27/00—Cooking-vessels
    • A47J27/004—Cooking-vessels with integral electrical heating means

Definitions

  • the invention relates to a household cooker, more particularly to a temperature-preserving electrically heated cooker.
  • a conventional electrically heated cooker keeps food warm by intermittently heating, but its structure does not have such a function. To keep food warm for a long time means a big waste of energy. However, a conventional temperature-preserving container cannot be used to cook food.
  • An object of the invention is to provide a temperature-preserving electrically heated cooker to solve problems in the prior art.
  • a temperature-preserving electrically heated cooker according to the invention comprising
  • a body comprising a housing and a container between which a first temperature-preserving chamber is constituted
  • heating means for heating said container
  • a controller for controlling a heating time and a heating temperature of said heating means
  • a base positioned under said body and connected separately thereto.
  • Said first temperature-preserving chamber in said body may be a vacuum space or may be filled with insulating materials.
  • Said lid may comprise a second temperature-preserving chamber, which may be a vacuum space or may be filled with insulating materials.
  • Said heating means may be a heating film or a plurality of electrically heating tubes positioned on the outside of the container.
  • the number of the electrically heating tubes depends on the heating temperature or the heating time needed for cooking.
  • Said electrically heating tubes may be disposed on the bottom of the container and/or on the outer side of the container, and may be covered by insulating materials.
  • a control panel may be arranged on the base to control the heating time and the heating temperature.
  • the temperature-preserving electrically heated cooker according to the invention may further comprise a base support disposed under the body. Insulating materials may be filled between the base support and the body.
  • FIG. 1 is a side cross sectional view showing an embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention.
  • FIG. 2 is a side cross sectional view showing another embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention.
  • FIG. 3 is a side cross sectional view showing a further embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention.
  • FIG. 1 shows a temperature-preserving electrically heated cooker in accordance with the present invention.
  • an inner wall 1 a and an outer wall 1 b of a lid 1 constitute a vacuum space; and an inner wall 3 a of and an outer wall 3 b a body 3 constitute another vacuum space.
  • the lid 1 and the body 3 are tightly locked together with a buckle and a sealing washer 2 to prevent food from leaking or spelling.
  • Heating means 4 comprising a plurality of electrically heating tubes are arranged on the outer surface of the wall 3 a of the body 3 .
  • the heating means 4 do not contact the inner surface of the wall 3 b of the body 3 .
  • a temperature sensor 14 is fitted on the inner wall 3 a of the body 3 and is separated from the inner wall 3 a of the body 3 with insulating materials so as to measure the real temperature in the container.
  • the body 3 of the cooker is fixed on a support 9 .
  • a plug 5 connected to the outer wall 3 b of the body 3 is set on the support 9 .
  • One end of the plug 5 is connected to the heating means 4 and the sensor 14 through a lead and the other end is inserted into a socket 6 set on a base 8 .
  • a control panel 7 is set on the base 8 to control the heating time and power of the heating means 4 .
  • An exhaust pipe 10 is fixed on the lid 1 .
  • the exhaust pipe 10 is open to air at one end through a sealing washer 2 and the lid 1 , and is connected to the inside of the container to discharge the steam therein so that the pressure in the cooker can be reduced for safety.
  • FIG. 2 shows another temperature-preserving electrically heated cooker in accordance with the present invention.
  • heating means 4 is fixed and exposed on the outer surface of the bottom of the body 3 .
  • the heating means 4 may consist of a plurality of electrically heating tubes or an electrically film. Said electrically heating tubes are enclosed by the bottom of the body 3 and the support 9 of the body. Other parts of the cooker are the same as those described in Example 1.
  • FIG. 3 shows another temperature-preserving electrically heated cooker in accordance with the present invention.
  • the cooker in this example is similar to that in Example 1, except that a temperature control is set in a mechanical manner.
  • a stand 11 of a thermostat is set on the base 8 .
  • a spring thermostat 12 is set between the housing 13 of the thermostat and the stand 11 .
  • the housing of the thermostat contacts the inner wall of the body 3 via a press spring to control the temperature of heating.
  • the present invention possesses advantages that the cooker is of a simple structure, and can be used not only to cook, but also to keep the food warm.

Abstract

The invention relates to a temperature-preserving electrically heated cooker comprising a body comprising a housing and a container between which a first temperature-preserving chamber is constituted; a lid connected to the upper part of said body; heating means for heating said container; a controller for controlling a heating time and a heating temperature of said heating means; and a base positioned under said body and connected separately thereto. The temperature-preserving electrically heated cooker according to the invention is of a simple structure, and can be used not only to cook, but also to keep the food warm.

Description

    FIELD OF THE INVENTION
  • The invention relates to a household cooker, more particularly to a temperature-preserving electrically heated cooker. [0001]
  • 1. Background of the Invention [0002]
  • A conventional electrically heated cooker keeps food warm by intermittently heating, but its structure does not have such a function. To keep food warm for a long time means a big waste of energy. However, a conventional temperature-preserving container cannot be used to cook food. [0003]
  • 2. Disclosure of the Invention [0004]
  • An object of the invention is to provide a temperature-preserving electrically heated cooker to solve problems in the prior art. [0005]
  • A temperature-preserving electrically heated cooker according to the invention, comprising [0006]
  • a body comprising a housing and a container between which a first temperature-preserving chamber is constituted; [0007]
  • a lid connected to the upper part of said body airtightly; [0008]
  • heating means for heating said container; [0009]
  • a controller for controlling a heating time and a heating temperature of said heating means; and [0010]
  • a base positioned under said body and connected separately thereto. [0011]
  • Said first temperature-preserving chamber in said body may be a vacuum space or may be filled with insulating materials. [0012]
  • Said lid may comprise a second temperature-preserving chamber, which may be a vacuum space or may be filled with insulating materials. [0013]
  • Said heating means may be a heating film or a plurality of electrically heating tubes positioned on the outside of the container. The number of the electrically heating tubes depends on the heating temperature or the heating time needed for cooking. [0014]
  • Said electrically heating tubes may be disposed on the bottom of the container and/or on the outer side of the container, and may be covered by insulating materials. [0015]
  • In the cooker of the present invention, a control panel may be arranged on the base to control the heating time and the heating temperature. [0016]
  • The temperature-preserving electrically heated cooker according to the invention may further comprise a base support disposed under the body. Insulating materials may be filled between the base support and the body.[0017]
    • BRIEF DESCRIPTION OF THE DRAWINGS
  • FIG. 1 is a side cross sectional view showing an embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention. [0018]
  • FIG. 2 is a side cross sectional view showing another embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention. [0019]
  • FIG. 3 is a side cross sectional view showing a further embodiment of the temperature-preserving electrically heated cooker in accordance with the present invention.[0020]
    • BEST MODE FOR CARRYING OUT THE INVENTION
  • The invention will be described in details with the following examples in conjunction with the accompanying drawings. [0021]
    • EXAMPLE 1
  • FIG. 1 shows a temperature-preserving electrically heated cooker in accordance with the present invention. In the Figure, an inner wall [0022] 1 a and an outer wall 1 b of a lid 1 constitute a vacuum space; and an inner wall 3 a of and an outer wall 3 b a body 3 constitute another vacuum space. The lid 1 and the body 3 are tightly locked together with a buckle and a sealing washer 2 to prevent food from leaking or spelling.
  • Heating means [0023] 4 comprising a plurality of electrically heating tubes are arranged on the outer surface of the wall 3 a of the body 3. The heating means 4 do not contact the inner surface of the wall 3 b of the body 3. Thus, when food in the cooker is heated with the electrically heating tubes, while the outer wall 3 b of the body 3 is kept at an ambient temperature. A temperature sensor 14 is fitted on the inner wall 3 a of the body 3 and is separated from the inner wall 3 a of the body 3 with insulating materials so as to measure the real temperature in the container.
  • The [0024] body 3 of the cooker is fixed on a support 9. A plug 5 connected to the outer wall 3 b of the body 3 is set on the support 9. One end of the plug 5 is connected to the heating means 4 and the sensor 14 through a lead and the other end is inserted into a socket 6 set on a base 8. A control panel 7 is set on the base 8 to control the heating time and power of the heating means 4.
  • When the [0025] body 3 is put on the base 8, the plug 5 is inserted into the socket 6. Thus, the container is heated. After food is cooked well, the power is switched off. However, the food is still kept warm for a long time even if the body 3 is moved from the base 8.
  • An [0026] exhaust pipe 10 is fixed on the lid 1. The exhaust pipe 10 is open to air at one end through a sealing washer 2 and the lid 1, and is connected to the inside of the container to discharge the steam therein so that the pressure in the cooker can be reduced for safety.
    • EXAMPLE 2
  • FIG. 2 shows another temperature-preserving electrically heated cooker in accordance with the present invention. In the Figure, heating means [0027] 4 is fixed and exposed on the outer surface of the bottom of the body 3. The heating means 4 may consist of a plurality of electrically heating tubes or an electrically film. Said electrically heating tubes are enclosed by the bottom of the body 3 and the support 9 of the body. Other parts of the cooker are the same as those described in Example 1.
    • EXAMPLE 3
  • FIG. 3 shows another temperature-preserving electrically heated cooker in accordance with the present invention. The cooker in this example is similar to that in Example 1, except that a temperature control is set in a mechanical manner. [0028]
  • A [0029] stand 11 of a thermostat is set on the base 8. A spring thermostat 12 is set between the housing 13 of the thermostat and the stand 11. When the body 3 is placed on the base 8, the housing of the thermostat contacts the inner wall of the body 3 via a press spring to control the temperature of heating.
  • The present invention possesses advantages that the cooker is of a simple structure, and can be used not only to cook, but also to keep the food warm. [0030]

Claims (14)

What I claim is:
1. A temperature-preserving electrically heated cooker comprising
a body comprising a housing and a container between which a first temperature-preserving chamber is constituted;
a lid connected to the upper part of said body;
heating means for heating said container;
a controller for controlling a heating time and a heating temperature of said heating means; and
a base positioned under said body and connected separately thereto.
2. A temperature-preserving electrically heated cooker according to
claim 1
, wherein said cooker further comprises a support under the bottom of the body.
3. A temperature-preserving electrically heated cooker according to
claim 1
, wherein said first temperature-preserving chamber is a vacuum space.
4. A temperature-preserving electrically heated cooker according to
claim 1
, wherein said lid comprises a second temperature-preserving chamber.
5. A temperature-preserving electrically heated cooker according to 1, wherein heating means is a plurality of electrically heating tubes positioned on the outer surface of the container.
6. A temperature-preserving electrically heated cooker according to
claim 5
, wherein said electrically heating tubes are positioned on the bottom or/and on the outer side of the container.
7. A temperature-preserving electrically heated cooker according to
claim 5
, wherein said electrically heating tubes are covered by insulating materials.
8. A temperature-preserving electrically heated cooker according to
claim 1
, wherein a control panel is fixed on the base for setting a heating temperature and a heating time.
9. A temperature-preserving electrically heated cooker according to
claim 2
, wherein said first temperature-preserving chamber is a vacuum space.
10. A temperature-preserving electrically heated cooker according to
claim 2
, wherein said lid comprises a second temperature-preserving chamber.
11. A temperature-preserving electrically heated cooker according to 2, wherein heating means are a plurality of electrically heating tubes positioned on the outer surface of the container.
12. A temperature-preserving electrically heated cooker according to
claim 11
, wherein said electrically heating tubes are positioned on the bottom or/and on the outer side of the container.
13. A temperature-preserving electrically heated cooker according to
claim 11
, wherein said electrically heating tubes are covered by insulating materials.
14. A temperature-preserving electrically heated cooker according to
claim 2
, wherein a control panel is set on the base for setting a heating temperature and a heating time.
US09/811,460 2000-03-23 2001-03-20 Temperature-preserving electrically heated cooker Expired - Fee Related US6340807B2 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
CN00227688.7 2000-03-23
CN 00227688 CN2420953Y (en) 2000-03-23 2000-03-23 Vacuum slow stewpot
CN00227688 2000-03-23
CN00240172 2000-11-16
CN00240172 2000-11-16

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US20010023866A1 true US20010023866A1 (en) 2001-09-27
US6340807B2 US6340807B2 (en) 2002-01-22

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Cited By (19)

* Cited by examiner, † Cited by third party
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WO2003037149A1 (en) * 2001-10-25 2003-05-08 Rauschert Gmbh & Co. Kg Mobile universal cooking appliance
US8618448B2 (en) * 2010-11-02 2013-12-31 Piatto Technologies, Inc. Heated or cooled dishwasher safe dishware and drinkware
US8759721B1 (en) 2010-11-02 2014-06-24 Piatto Technologies, Inc. Heated or cooled dishwasher safe dishware and drinkware
US9035222B2 (en) 2010-11-02 2015-05-19 Oromo Technologies, Inc. Heated or cooled dishware and drinkware
US20150245723A1 (en) * 2010-11-02 2015-09-03 Ember Technologies, Inc. Heated or cooled dishware and drinkware
US20170042373A1 (en) * 2010-11-02 2017-02-16 Ember Technologies, Inc. Heated or cooled dishware and drinkware and food containers
US9782036B2 (en) 2015-02-24 2017-10-10 Ember Technologies, Inc. Heated or cooled portable drinkware
US9801482B1 (en) 2016-05-12 2017-10-31 Ember Technologies, Inc. Drinkware and plateware and active temperature control module for same
US9863695B2 (en) 2016-05-02 2018-01-09 Ember Technologies, Inc. Heated or cooled drinkware
US9995529B1 (en) * 2016-12-08 2018-06-12 Nova Laboratories Temperature-regulating containment system
US20190110643A1 (en) * 2017-10-14 2019-04-18 Gloria Contreras Smart charger plate
US10383476B2 (en) 2016-09-29 2019-08-20 Ember Technologies, Inc. Heated or cooled drinkware
US10433672B2 (en) 2018-01-31 2019-10-08 Ember Technologies, Inc. Actively heated or cooled infant bottle system
US10670323B2 (en) 2018-04-19 2020-06-02 Ember Technologies, Inc. Portable cooler with active temperature control
US10989466B2 (en) 2019-01-11 2021-04-27 Ember Technologies, Inc. Portable cooler with active temperature control
US11118827B2 (en) 2019-06-25 2021-09-14 Ember Technologies, Inc. Portable cooler
US11162716B2 (en) 2019-06-25 2021-11-02 Ember Technologies, Inc. Portable cooler
US20230148790A1 (en) * 2010-11-02 2023-05-18 Ember Technologies, Inc. Drinkware container with active temperature control
US11668508B2 (en) 2019-06-25 2023-06-06 Ember Technologies, Inc. Portable cooler

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WO2003037149A1 (en) * 2001-10-25 2003-05-08 Rauschert Gmbh & Co. Kg Mobile universal cooking appliance
US11771260B2 (en) * 2010-11-02 2023-10-03 Ember Technologies, Inc. Drinkware container with active temperature control
US11771261B2 (en) * 2010-11-02 2023-10-03 Ember Technologies, Inc. Drinkware container with active temperature control
US11089891B2 (en) * 2010-11-02 2021-08-17 Ember Technologies, Inc. Portable cooler container with active temperature control
US20150245723A1 (en) * 2010-11-02 2015-09-03 Ember Technologies, Inc. Heated or cooled dishware and drinkware
US10188229B2 (en) * 2010-11-02 2019-01-29 Ember Technologies, Inc. Heated or cooled dishware and drinkware
US11083332B2 (en) * 2010-11-02 2021-08-10 Ember Technologies, Inc. Portable cooler container with active temperature control
US20230088824A1 (en) * 2010-11-02 2023-03-23 Ember Technologies, Inc. Drinkware container with active temperature control
US9814331B2 (en) * 2010-11-02 2017-11-14 Ember Technologies, Inc. Heated or cooled dishware and drinkware
US20230108807A1 (en) * 2010-11-02 2023-04-06 Ember Technologies, Inc. Drinkware container with active temperature control
US9974401B2 (en) 2010-11-02 2018-05-22 Ember Technologies, Inc. Heated or cooled dishware and drinkware
US8618448B2 (en) * 2010-11-02 2013-12-31 Piatto Technologies, Inc. Heated or cooled dishwasher safe dishware and drinkware
US11950726B2 (en) * 2010-11-02 2024-04-09 Ember Technologies, Inc. Drinkware container with active temperature control
US20230148790A1 (en) * 2010-11-02 2023-05-18 Ember Technologies, Inc. Drinkware container with active temperature control
US20180360264A1 (en) * 2010-11-02 2018-12-20 Ember Technologies, Inc. Heated or cooled dishware and drinkware and food containers
US9035222B2 (en) 2010-11-02 2015-05-19 Oromo Technologies, Inc. Heated or cooled dishware and drinkware
US20170042373A1 (en) * 2010-11-02 2017-02-16 Ember Technologies, Inc. Heated or cooled dishware and drinkware and food containers
US10010213B2 (en) * 2010-11-02 2018-07-03 Ember Technologies, Inc. Heated or cooled dishware and drinkware and food containers
US8759721B1 (en) 2010-11-02 2014-06-24 Piatto Technologies, Inc. Heated or cooled dishwasher safe dishware and drinkware
US10743708B2 (en) * 2010-11-02 2020-08-18 Ember Technologies, Inc. Portable cooler container with active temperature control
US20220053971A1 (en) * 2010-11-02 2022-02-24 Ember Technologies, Inc. Portable cooler container with active temperature control
US10413119B2 (en) 2015-02-24 2019-09-17 Ember Technologies, Inc. Heated or cooled portable drinkware
US10098498B2 (en) 2015-02-24 2018-10-16 Ember Technologies, Inc. Heated or cooled portable drinkware
US9782036B2 (en) 2015-02-24 2017-10-10 Ember Technologies, Inc. Heated or cooled portable drinkware
US9863695B2 (en) 2016-05-02 2018-01-09 Ember Technologies, Inc. Heated or cooled drinkware
US10995979B2 (en) 2016-05-02 2021-05-04 Ember Technologies, Inc. Heated or cooled drinkware
US11871860B2 (en) 2016-05-12 2024-01-16 Ember Technologies, Inc. Drinkware with active temperature control
US9801482B1 (en) 2016-05-12 2017-10-31 Ember Technologies, Inc. Drinkware and plateware and active temperature control module for same
US10182674B2 (en) 2016-05-12 2019-01-22 Ember Technologies, Inc. Drinkware with active temperature control
US10383476B2 (en) 2016-09-29 2019-08-20 Ember Technologies, Inc. Heated or cooled drinkware
US9995529B1 (en) * 2016-12-08 2018-06-12 Nova Laboratories Temperature-regulating containment system
US20190110643A1 (en) * 2017-10-14 2019-04-18 Gloria Contreras Smart charger plate
US11517145B2 (en) 2018-01-31 2022-12-06 Ember Technologies, Inc. Infant bottle system
US10433672B2 (en) 2018-01-31 2019-10-08 Ember Technologies, Inc. Actively heated or cooled infant bottle system
US11395559B2 (en) 2018-01-31 2022-07-26 Ember Technologies, Inc. Infant bottle system
US10670323B2 (en) 2018-04-19 2020-06-02 Ember Technologies, Inc. Portable cooler with active temperature control
US11067327B2 (en) 2018-04-19 2021-07-20 Ember Technologies, Inc. Portable cooler with active temperature control
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US11118827B2 (en) 2019-06-25 2021-09-14 Ember Technologies, Inc. Portable cooler

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