CA2048957A1 - Apparatus for producing prepared foods by electrical conduction - Google Patents

Abstract

ABSTRACT OF THE DISCLOSURE
An apparatus for producing prepared food by electrical conduction comprising: a processing container for electrical conduction having an opened top, a pair of electrodes mounted on both inner sides of the processing container, one ends of said electrodes extending to the outside so that a contact part is formed; a base to which said processing container may be detachably disposed; a control box for electrical conduction, mounted on one side of said base, provided with a transmission part adapted to be in contact with said contact part of the processing container so that electricity transmits to said electrodes; an operating arm vertically pivoted to the top of said control box; a lid disposed on the end of said operating arm and cover-ing the open top of said processing container; and a temperature sensor fitted up with the tip of said operating arm and sensing a temperature of said proces-sing container.

Description

20~89~7 The present invention relates to an apparatus for producing prepared food by electrical conduction.
It contains a lid which covers an upper opening of the apparatus and a processing container by conduction which has a pair of electrodes disposed on both sides of the inner container. ~oodstuffs can be safely and accurately warmed to an appropriate temperature in a very short time by electrical conduction employing the electrodes of the processing container. Such foods include Chinese, Japanese and other kinds of noodles, cooked rice, beans and various kinds of soup including miso eoup, etc.
It is well known that instant foods such as Chinese ~ramen) and Japanese (udon) noodles and miso soup can be prepared simply by pouring boiling water on the instant food within a disposable container. These foods are prepared by pre-dehydrated processing and designed so that they can be reconstituted and eaten immediately after boiling water is poured on them. Such a process ie shown for example in Japanese Utility Model Publication No. 56-23253 prior to the present invention.
However, in conventional instant foods, if the water poured into a container is not hot enough, some-times the instant foods cannot be heated sufficiently, 1 they cannot be eaten even if they are preprocessed.They may need to be reheated in pots and pans or have fresh boiling water poured on them, and so forth.
Dietary standards have improved in recent years and there is a trend towards natural foods. Since tastes and textures of preprocessed instant foods are inferior to natural and non-instant foods, consumers tend to shy away from them. Since foods such as Chinese noodles or processed rice are dried after they have expanded, they are not suited for consumer's tastes. This is one of various problems that has come up.

SUMMARY OF THE INVENTION
The present invention has been achieved to solve such problems of the prior art. An object of the present invention is to provide an apparatus for produc-ing prepared food by electrical conduction in such a manner that foodstuffs can be safely warmed and cooked without using boiling water and an electronic oven and so forth. Another object of the present invention is to provide a processing container for conduction to accom-modate processed foodstuffs for use as instant foods and preprocessed foodstuffs with appropriate water or moisture; the foodstuffs can be safely warmed and cooked at an accurate temperature by electrical conduction; the action is provided between a pair of electrodes opposed to each other in the processing container by electrical conduction; the foodstuffs accommodated in the 2~ 7 1 processing container for electrical conduction can be heated sufficiently until the materials boil in a very short time; noodles such as unprocessed Chinese noodles and unprocessed rice can be cooked normally; other common uncooked or cooked foods can be warmed or cooked.
Another object of the present invention is to provide an apparatus to warm and cook foodstuffs safely even if the pro¢essing container for electrical conduction is made of inexpensively disposable materials.
To achieve the above-described objects, an apparatus for producing prepared food by electrical conduction in accordance with the present invention comprising: a processing container for electrical conduction having an opened surface and a pair of elec-trodes being disposed on both sides of the inner proces-sing container, in such a manner that each end of the electrodes is extended to the outside of the processing container so that a contact part is formed; a base being detachably mounted with the processing container by conduction; a control box by conduction being mounted on one side of the base plate, in such a manner that the box has a transmission part which is in contact with the contact part of the container and transmits electricity between a pair of electrodes; an operating arm being vertically pivoted to the top of the control box by conduction; a lid being disposed on the end of the operating arm and covering an opened surface; and a temperature sensor being fitted up with the end of the 1 operating arm and sensing a temperature of the proces- -sing container by conduction.

BRIEF DESCRIPTION OF THE DRAWINGS
The manner in which the foregoing and other objects of this invention are accomplished will become apparent from the accompanying specification and claims considered together with the drawings, wherein:
Fig. 1 is a perspective view of an apparatus for producing prepared foods by electrical conduction employing the present invention.
Fig. 2 is a vertical section view of the apparatus for producing prepared foods by electrical conduction of Fig. 1.
Fig. 3 is an exploded and perspective view of the main part of the apparatus for producing prepared foods by electrical conduction of Fig. 1.
Fig. 4 is a perspective view of the apparatus for producing prepared foods by electrical conduction according to another embodiment of the present invention.
Fig. 5 is a vertical section view of the apparatus for producing prepared foods by electrical conduction of Fig. 4.
Fig. 6 i8 a perspective view of a processing container for electrical conduction of Fig. 4.
Fig. 7 is a perspective view showing the condition in which the processing container for 2 ~ 7 1 electrical conduction of Fig. 6 is accommodated within a -container holder.

DESCRIPTION OF THE PREFERRED EMBODIMENTS
Referring now to the accompanying drawings, the preferred embodiment of the present invention is described.
, In Fig. 1 and Fig. 3, a processing container for electrical conduction 1 may be any box-shaped container having a bottom, and the upper surface is opened and a pair of opposed electrodes 2 and 2 are located on both sides of the inner container. The whole body of the processing container 1 is plastici~ed with insulating materials such as synthetic resin or glass and a handle 3 is fixed on one side of the container 1.
The inside of the processing container 1 accommodates foodstuffs which contains a suitable amount of elec-trolyte (e.g. salt), for example, noodles such as Chinese noodles, Japanese noodles, buckwheat noodles tsoba), spaghetti, rice, beans, and various kinds of soup including miso with a suitable amount of water and moisture.
A pair of opposed electrodes 2 and 2 are disposed on both sides inside the processing container 1. One end of the electrodes 2 and 2 forms a contact part 4 in such a manner that the end of the electrodes is projected to the outside through the upper edge of the processing container 1. It is preferable that the 2 0 ~ 7 1 electrodes are made of electrically conductive materials. Metal can be also used for the electrodes.
For example, thin plate and wire rod made of titanium and aluminum, foil, foil whose surface laminated with synthetic resin film, carbon, and synthetic resin mixed in carbon. The essential thing is that materials and shapes can be selected optionally.
/ A base S is molded with insulating materials and a processing container l for electrical conduction is detachably placed on the base 5. A control box 6 for electrical conduction is mounted on one side of the base 5. The inside of the box 6 accommodates various kinds of electrical equipments. An opening 7 is formed on one side of the box 6 and the contact part 4 of the elec-trodes 2 and 2 may be inserted in the opening 7. Atransmission part 8 consisted of two upper and lower contact pieces 8', 8' is provided in the control box 6 close to the opening 7. By fitting the contact part 4 to the transmission part 8, the electricity can be transmitted to the contact part 4.
The base side of a lever-shaped operating arm 9 is pivoted to a pivot lO near the top of the control box 6 for electrical conduction. The operating arm 9 can be pivotally raised and laid freely on the pivot 10.
A transparent or opacity lid ll made of insulating materials is molded into an approximately similar shape to the processing container l and detachably fitted into the end of the operating arm 9.

- ~0~8~7 1 When the operating arm 9 is laid, the lid 11 covers the upper opening of the processing container 1. A steam discharging port 12 opens in the lid 11 at a portion in which the arm 9 is disposed on. It is a matter of course that the steam discharging port 12 may open in any place of the lid 11. A pull 13 is attached to one side of the lid 11.
/ A temperature sensor 14 is detachably fitted to the operating arm 9 and the lid 11 so that the tip of the sensor faces to the steam discharging port 12. A
temperature sensor 14 is formed in such a manner that a temperature sensor senses a temperature of steam passing through the steam discharging port 12, when the sensor senses a predetermined temperature, a power supply to a pair of electrodes 2, 2 is cut off.
A first switch 15 is disposed near the trans-mission part 8 mounted in the control box 6 so that the switch 15 senses whether the contact part 4 of a pair of electrodes 2, 2 appropriately keeps in contact with the transmission part 8. A second switch 16 is disposed in the control box 6 near the pivot 10 in such a manner that the second switch 16 senses whether the lid 11 covers the upper opening of the processing container 1 appropriately when the opening arm 9 is laid on the pivot 10. A start switch 17, disposed on the top of the control box 6, connects with the power supply in such a manner that the switch 17 can "close" and start to transmit electricity to a pair of electrodes 2 and 2 2 ~

1 only when the first switch 15 and the second switch 16 are both in a close condition. This prevents accidental electric shock from occurring and maintains the safety.
Therefore, a lighting-type pushbutton, which is lighted while the electrodes 2 and 2 are conducted, is conveni-ent for the start switch 17. A switch-retaining relay 18, mounted in the control box 6, "opens" the start switch 17 when the temperature sensor 14 senses a predetermined temperature of a steam. The relay 18 holds the switch 17 in a "opened" condition and maintains the electrodes 2 and 2 as being shut off.
After the processing work by electrical conduction is completed, the relay 18 prevents a temperature of the sensor 14 falling and automatically starting to transmit electricity to the electrode 2 and 2.
The switch holding relay 18 is formed in such a manner that the relay 18 is reset only when the power supply switch 19, mounted on the surface of the control box 6, is "opened".
A lead line 20 of an AC power supply is mounted on one side of the control box 6.
Next, operation of the embodiment showing Fig.
1, Fig. 2, and Pig. 3 will be described. Firstly, if operators want to safely and accurately warm and cook foodstuffs of appropriate materials to an appropriate temperature in the processing container by electrical conduction in a very short time, they should put foodstuffs containing a suitable amount of electrolyte 2 0 ~ 7 1 (e.g. salt), such as Chinese noodles, Japanese noodles, buckwheat noodles, spaghetti, curry sauce, soup, and rice into the processing container. In a preferable example, 80 g of dehydrated Chinese noodles with approximately 400 cc of water are accommodated in the processing container, dehydrated powder soup is added to water, and the container is placed on the base.
/ Secondly, the contact part of the processing container is pushed into the transmission part provided on one side of the control box and connected to a AC 100 V power supply.
When the above operations are completed, the operating arm having a lid and in a standing state is laid about the pivot so that the upper opening is covered with the lid and the power supply switch is turned on.
However, in this condition, since the processing container which accommodates the foodstuffs is accurately placed on the predetermined position and the first and second switches respectively show a closed condition, when a processing operation for electrical conduction is started by switching the start switch, electrical voltage of 100 volts is impressed to a pair of electrodes opposed to each other through the contact part of the processing container from the transmission part. Then, an electric current flows through Chinese noodles and water between the electrodes, the water in the processing container is in a boiling condition by _ g _ 2 ~ 5 7 1 generated Joule heat in five to six minutes later from the beginning of the conduction, and the generated steam is discharged to the outside of the container through the steam discharging port and simultaneously the steam temperature ls sensed by the temperature sensor.
Therefore, when the temperature sensor senses that the steam temperature reaches 98C to 100C, the power supply switch is shut off by the switch retaining relay and the processing operation for electrical conduction is stopped automatically.
At this time, since the insides of Chinese noodles are heated intensely and the insides of them are heated more sufficiently than the outside of them by preheating of the boiled water, they can be immediately served on the table.
If the operating arm is raised, the second switch is "opened" in a non-sensing condition. If the processing container by conduction is taken out of the base, the first switch is "opened" in a non-sensing condition. If an operation procedure is mistaken, the safety is maintained securely.
Operators can transfer the cooked Chinese noodles from the processing container to another conta~ner and eat them. Another Chinese noodles can be cooked in succession after going through the same procedure. --~
Therefore, compared with a conventional casein which Chinese noodles are boiled in pots or pans, - . . , ~
.

2 ~ 7 1 since electricity directly passes through the insides of Chinese noodles and the noodles are heated with the Joule heat, Chinese noodles, which are heated and cooked sufficiently in a very short time, can be obtained.
The embodiment showing Figs. 4 to 7 is an apparatus for producing prepared food by electrical conduction in which the processing container lA for ele¢trical conduction is disposable and the foodstuffs can be warmed and cooked by electrical conduction in a very short time. The processing container lA is made of insulating materials such as styrofoam synthetic resin and paper vessel etc. and the materials are very in-expensive and fit to be disposable. Even if the processing container lA is in any shape such as a square, a rectangle, and a circle, it is formed in such a manner that the processing operation by conduction can be done. A pair of opposed electrodes 2A and 2A, similar to the first invention, are disposed on both sides of the inner container. The disposable processing container lA is accommodated within an insulating container holder 21 detachably disposed on the base 5 so that the container lA is freely put in and out the holder 21.
In this embodiment, even if the processing container lA is molded with a material having less heat resistance characteristic or less strength to keep its shape, it may be installed on and removed from the base 5, operators can hold the handle 22 of the container 2 t~ 5 7 1 holder 21 and safely and securely take out the processing container lA together with the container holder 21 from the base 5; if the water is hissing hot and soup overflows the processing container lA, the soup can be caught in the container holder 21; notches 23 and 23 are made on both sides of the container holder 21 as shown in Pig. 4 and Fig. 7 so that operators can easily and/securely fit into and pull the processing container lA out of the container holder 21 with both hands; and the tip of the temperature sensor 24, hung through the steam discharging port 12, is made to face to the inside of the processing container lA so that foodstuffs or liquid temperature in the container lA can be sensed.
In the apparatus for producing prepared foods by electrical conduction shown in Figs. 4 to 7, food-stuffs such as dehydrated Chinese noodles are placed in advance into the disposable container having a pair of electrodes disposed on both sides, similar to the apparatus of the first invention, and water is poured into the processing container, after which the proces-sing container is accommodated within the container holder and the container holder is located on the base.
Then, the container holder is pushed into the transmis-sion part of the processing control box in such a manner that the contact part is brought into contact with the transmission part. When the top opening of the proces-sing container is closed by pivoting the standing lid sidelong and the power supply switch is turned on, the 2 ~ 7 1 first switch and the second switch become both in closed conditions similar to the apparatus of the first embodiment. Next, when the processing operation by electrical conduction is started by impressing the conductive switch, electricity passes in a pair of the electrodes through the contact part from the trans-mission part and Chinese noodles can be nicely boiled and/cooked in five to six minutes. Since the processing container, whose outside is heated, can be taken out together with the container holder without coming in direct contact with a hand and if the boiling water overflows the processing container during the processing operation by electrical conduction, the boiling water can be caught in the container holder, the processing operation by electrical conduction can be sanitarily and safely performed without unnecessarily staining the base.
Besides, since the temperature sensor disposed on the lid is hung through the steam passageway and the tip faces to the processing container and foodstuffs and liquid temperatures can be directly measured and sensed, if the heating operation at a low temperature is performed in the degree to which a steam doesn't generate, the foodstuffs can be more accurately and ea5ily warmed and cooked.
Since the apparatus for producing prepared food by electrical conduction in accordance with the present invention is formed as described above, the 2 ~ 7 1 following effects can be achieved.
Even if the foodstuffs, accommodated within the processing container having an open top and a pair of electrodes disposed on both sides of the inner processing container, are preprocessed instant or non-instant foods, they are accommodated in the processing container together with a suitable amount of water or moigture; the lid shuts the open top of the processing container by pivoting the operation arm sidelong, under this condition, the foodstuffs can be accurately warmed and cooked to an appropriate temperature employing electrical conduction between a pair of electrodes through the transmission and contact parts, and the foodstuffs can be sufficiently boiled in a very short time; unprocessed foods can be cooked and rice can be cooked by using unprocessed rice; uncooked or cooked foods can be warmed or cooked; if the processing container is made of disposable materials, the processing container is accommodated within the container holder and foodstuffs can be safely warmed and cooked by electrical conduction between a pair of electrodes; the container holder can be effectively used for keeping the processing container in shape and for receiving overflown soup; since the operating arm is provided with the temperature sensor in which the sensor senses a temperature of a steam discharged through the steam discharging port or a temperature of foodstuffs accommodated in the processing container, the sensor :- 20~9~7 1 quickly senses a temperature of the steam heat, foodstuffs, and liquid being raised in the processing container and the power supply to a pair of electrodes are shut off automatically when the sensor senses the predetermined temperature. And then, products superior in quality can be provided.
Since the lid is detachably disposed on the oper~ating arm, the lid suited to the shape of the processing container can be replaced, attached and used widely.
In addition, since the start switch is eguipped in the processing control box, the first switch which seneee whether the transmission part keeps in contact with the contact part of the processing container and the second switch which senses whether the lid covere the top opening of the processing container placed on the processing container, and the start switch ie shut off and electricity transmits to a pair of electrodes only when the first and second switches are in cloeed conditione. Therefore, the processing operation by electrical conduction can be more safely and accurately performed and it can be repeatedly and rapidly performed while preventing an accident such as electr~c ehock occurring,

Claims (12)

1. An apparatus for producing a prepared food comprising:
a processing container having an opened top, a pair of electrodes disposed on both inner sides of the container, one ends of said electrodes extending to the outside so that a contact part is formed;
a base to which said processing container may be detachably disposed;
a control box for electrical conduction, mounted on one side of said base, provided with a transmission part adapted to be in contact with said contact part so that electricity transmits to said electrodes;
an operating arm vertically pivoted to the top of said control box;
a lid disposed on the end of said operating arm and covering the opened top of said processing container; and a temperature sensor fitted with the tip of said operating arm and sensing a temperature of said processing container by conduction.

2. An apparatus for producing a prepared food as claimed in claim 1, wherein said lid, disposed with a temperature sensor, is formed with a steam discharging port.

3. An apparatus for producing a prepared food as claimed in claim 1, wherein said lid is detachably attached to an operating arm.

4. An apparatus for producing a prepared food as claimed in claim 1, wherein said temperature sensor faces to a steam discharging port formed in the lid.

5. An apparatus for producing a prepared food as claimed in claim 1, wherein said temperature sensor is hung into the steam discharging port formed in the lid and the tip of said temperature sensor faces to the processing container.

6. An apparatus for producing a prepared food as claimed in claim 1, wherein said control box is provided with a start switch, a first switch which senses whether the transmission part keeps in contact with the contact part of the processing container for electrical conduc-tion, and a second switch which senses whether the lid covers the open top of the processing container, whereby the start switch is shut and electricity transmits to a pair of electrodes only when the first and second switches are in closed conditions.

7. An apparatus for producing a prepared food comprising:
a processing container having an opened top, a pair of electrodes mounted on both inner sides of the processing container, one ends of said electrodes extending to the outside so that a contact part is formed;
a container holder accommodated with said processing container in order that the processing container can be freely kept in and out the holder;
a base to which said container holder accommodating said processing container therein may be detachably disposed;
a control box for electrical conduction, mounted on one side of said base, provided with a transmission part adapted to be in contact with said contact part so that electricity transmits to said electrodes;
an operating arm vertically pivoted to the top of said control box;
a lid disposed on the end of said operating arm and covering the opened top of said processing container; and a temperature sensor fitted up with the tip of said operating arm and sensing a temperature of said processing container by conduction.

8. An apparatus for producing a prepared food as claimed in claim 7, wherein said lid, mounted on the temperature sensor, is formed with a steam discharging port.

9. An apparatus for producing a prepared food as claimed in claim 7, where n said lid is detachably attached to the operating arm.

10. An apparatus for producing a prepared food as claimed in claim 7, wherein said temperature sensor faces to the steam discharging port formed in the lid.

11. An apparatus for producing a prepared food as claimed in claim 7, wherein said temperature sensor is hung into the steam discharging port formed in the lid and the tip of said temperature sensor faces to the processing container.

12. An apparatus for producing a prepared food as claimed in claim 7, wherein said control box is provided with a start switch, a first switch which senses whether the transmission part keeps in contact with the contact part of the processing container for electrical conduc-tion, and a second switch which senses whether the lid covers the open top of the processing container, whereby the start switch is shut and electricity transmits to a pair of electrodes only when the first and second switches are in closed conditions.