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(11) | EP 0 225 952 A1 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | A domestic electric kiln |
| (57) A domestic electric kiln which also can be used as an ordinary electric radiator,
mainly comprised of: a heat resistant frame body with electric coils equipped arround
in its inner wall; a cover with an opening in its center; a safety lock on the other
side of the cover; a water pipe for generating steam; a supporting plate which also
facilitates the spread of the steam throughout the inner chamber; a shell with double
walls which serves as an air-cooling mechanism and a temperature regulator. The device
is characterized by continuous flow of both steam and hot air in the kiln chamber,
thus, enables one to make high quality products of chinaware or pottery by oneself
at home. |
Background of the invention
[0001] This invention concerns a type of domestic electric kiln-heater which makes use of the same energy found in an ordinary electric radiator. That is, it benefits from the continuous flow of both steam and air which is drawn in and expelled from the chamber. This kiln-heater (example: electrical power 2000W, 110V) can produce high quality products of chinaware or pottery in just 1.50 minutes at 1280°C. It can at the same time increase the temperature in an area of 500 Ft² by as much as 3°C. And, furthermore, boil 1500cc of water as well as sterilize the atmosphere. These are functions an average domestic radiator can not hope to accomplish.
Summery Of The Invention
[0002] The embodiments of this invention consists primarily of electrical coils (heat source) set around the inner wall of its heat resistant body frame. A cover with a hole and a safety lock mechanism on the other side; a manually operated heat-outlet regulator; a water pipe (or plate form) for generating steam; a supporting plate which facilitates the spreading of steam throughout the inner chamber; and outside shell with double walls which serves as an air-cooling device and a temperature controller.
Detailed Description Of The Invention
[0003] This invention relates to a domestic electric kiln-heater. Of which its one specialty is in providing warmth to the home. From this heat one can at the same time balce high quality chinaware or pottery and make food or coffee as well. This electric device can be operated with ease and safety in the living room, bedroom or whereever one wishes.
[0004] We have seen a trend recently in which the popularity of chinaware and pottery has gone up. Especially to those of us who enjoys collecting chinas and potterys. With this equipment, we need no longer just collect and admire them but have a hand at making our own in the convenience of our homes.
[0005] The average electric furnace make use of high concentrated electric heating when baking. They often fail to produce works that meet up to our standard. Moreover, the size and volumn needs to be quite large so as to accomodate the required distance between the embryo and the electric coils, in order to avoid cracks and deformations that cornes from improper placement. The effective space of said furnace ends up being too small to make large high quality chinaware or pottery.
[0006] This invention makes use electrical power which is found in most household appliances. It is a domestic equipment for the benefit of the average person to make their own chinaware at home. To top this, there is the option of adjusting room temperature by changing the heat output. Or adjusting it so that fried chop-suey, steak or instant boiling water can be made, while the embryo is being baked. All the above options can be done with absolutely no harm to the baking process.
Functions And Characteristics Of The Invention:
[0007]
(1) This invention of an electric kiln-heater utilizes the contrinuation of cold air drawn in and hot air expelled. The temperature and humidity are easily and quickly adjusted, without worrying about the heat limitation placed on the china or pottery, to prevent unattractive lines forming.
(2) The steam and pressure inside said kiln-heater are always maintained at a steady level. Thus, improving on the common electric kiln. This invention is also capable of using the least time to complete a product of china or pottery, with the right hardness and the best quality.
(3) This kiln heater possesses a continuous flow of steam and air in the chamber of the kiln as it is in use. It also provides a relatively large effective space for potting the embryo of chinaware or pottery, because the distance between said embryo and heat source need only be 15 m/m. Therefore, relatively large high quality chinaware and pottery can be made (at 1280°C) without fear of cracks or deformations.
(4) This device as a heater, is capable of maintaining the right humidity as well as give out heat. As cold and warm air enters the kiln chamber, more heat is applied and consequently sterilizes the hot air that is expelled.
(5) The kiln cover is equipped with a manually operated heat-outlet regulator. Depending on the need, one can control the inner air volum of the kiln chamber by regulating the heat expelled. This phenomenon is guaranteed not to affect the china or pottery set within the chamber. What more can one expect from a kiln?! For example, when the temperature inside the chamber reaches about 1200°C (that which is required by the china), we can adjust the heat-outlet regulator so that increased cold air enters the chamber and is quickly expelled at a hight temperature and at a greater volumn for the purpose of grilling steaks. This not only does not harm the china or pottery in the chamber but when done, one actually ends up with a better quality product. This is an incredible and unusual feat.
(6) This type of simple electric kiln-heater relies on steam and air to continuously flow in and out of the chamber. So the result is one of high quality product. As a heater, this device allows the air in a room to flow regularly so that the temperature in every corner can uniformly go up. This results in a good heating system. This invention achieves the usage and phenomenon of both kiln and heater. Moreover, this is a unique device in that the electric coil (heat source) produces heat that flows continuously and unfirmly within the kiln chamber.
[0008] The foregoing advantages and features of the present invention will become apparent from the following detailed description with the accompanying drawings.
Brief Description Of The Drawing Figures
[0009]
Fig. 1 is a out-side view of the present invention;
Fig. 2A if a transparent view of the present invention;
Fig. 2B is a out-side view of the water pipe.
Fig. 2C is a plan view of the kiln shell.
Fig. 2D is a out-side view of the safety lock mechanism on the kiln cover.
Fig. 2E is a out-side view of the supporting rack in the kiln chamber.
Fig. 2F is out-side view of the Alumina pottery they fixed on the exterior wall of the kiln for connecting electrical coile and electric current.
Detailed Description Of The Embodiments
[0010] Reffering to Figs, the frame body 1 of the kiln is made of heat resistant substance and is equipped with electrical coils 101, 102, 103------- around in its inner wall. There is two openings 106, 107 formed on the bottom of the kiln. Pipe 2 is a water container which has two openings 202, 203. (Fig. 2B) One is the water inlet 203, another 201 is a heat conducting block, the other 202 is formed like an elbow part of the pipe 2 and serves as a steam outlet. Pipe 2 is set to the outside of the bottom by inserting the heat conducting block 201 and the steam outlet 202 through the two holes 106, 107 of the inner bottom of the kiln. A supporting rack 6 is placed in the kiln chamber to support the embryo of chinaware or pottery. When steam comes up from the hole 202 of the bottom, it will spread throughout the kiln chamber because of the blocking to the rack 6, thus provides a continuous flow of steam and hot air in the chamber. The cover 5 has an opening 501 in the center which is equipped with 503 a manually operated neat-outlet regulator. For steam and hot air from the kiln chamber. The temperature inside the kiln chamber would be up to 1280°C. For the sake of safety and prevent users to open the cover suddenly, a safety lock 4 is set on the side of cover 5. The safety lock 4 is comprised of a bolt 405 with a round head 401 which serves as a handle (Fig. 2D). The bolt 405, which is engaged with a ball bearing 404 connected to the cover 5, can be screwed into a nut 406 formed on the top of the frame body 1 of the kiln. When loosen the safety lock 4, i.e., screw up the bolt 401 by turning the round handle 401, the cover 5 could be lifted, then move the cover 5 to the other side, thus the kiln would be opened and one can put in or take out the embryo of chinaware or pottery. In addition to the safety lock 4, there is a latch 502 set on the opposite side of the cover 5 for more assurance. When the kiln is in use, the heat conducting block 201 would receive the heat generated by the electrical coils, thus would vaporize the water contained in the pipe 2. The hot steam would be generated from the steam outlet 202 of the pipe 2, then goes into the chamber. After spreading throughout the whole chamber, it finally outlet from the opening 501 of the cover 5, thus a continuous flow of steam and hot air would be mentioned in the chamber of the kiln. 503 is a kiln cover manually operated neat- outlet regulator.
[0011] The shell 3 of the kiln consists of two separated metal plates (Fig. 2C), thus form an insulating space between, which serves as an air-cooling mechanism. That is, it can decrease temperatures from 1280°C (inside the kiln) to 50°C approximately (on the exterior surface of the shell 1).
[0012] A receptacle 7 and 701 (Fig. 2F) is Alumina pottery they fixed on the exterior wall of the kiln for connecting electrical coile and the cords of the electrical couple and the temperature regulator 8. The temperature regulator 8 can be used any known device and is beyond the scope of claim, therefore no more statement be offered here.
[0013] The above description and particularly the drawings set forth is done for the purposes of illustration only. It will be understood that many variations and modifications of the embodiments herein described will be obvious to those skilled in the art, and may be carried out without departing from the scope of the present invention.