WO2006019228A1

WO2006019228A1 - Clay fry plate and method of manufacturing the same

Info

Publication number: WO2006019228A1
Application number: PCT/KR2005/002360
Authority: WO
Inventors: Daegon Nam
Original assignee: Daegon Nam
Priority date: 2004-08-19
Filing date: 2005-07-21
Publication date: 2006-02-23
Also published as: KR20060016882A

Abstract

A clay fry plate and a method of manufacturing the same are disclosed. The method of the present invention includes the steps of placing clay paste in a mold, first pressing the clay paste in the mold using high hydraulic pressure, and grinding a surface of the first press-formed clay fry plate. The method further includes the steps of second pressing the ground clay fry plate using high hydraulic pressure, and removing the second press-formed clay fry plate from the mold and drying the second press-formed clay fry plate in the shade place. Furthermore, the present invention provides a clay fry plate manufactured through the above-mentioned manufacturing method. The clay fry plates of the present invention prevent smoke and smells from occurring, prevents oil from being spattered, improves the flavor of the food, is harmless to human body, and is disposable and environmentally-friendly.

Description

CLAY FRY PLATE AND METHOD OF MANUFACTURING

THE SAME

Technical Field

[1] The present invention relates, in general, to clay fry plates and, more particularly, to a clay fry plate which prevents smoke and smells from occurring and prevents oil from being spattered when food is fried on the clay fry plate, and which improves the flavor of the food, is harmless to human body, and is disposable and environmentally- friendly, and a method of manufacturing the same.

Background Art

[2] Generally, fry plates, which are used when frying food such as meat using heating sources, are made of metal or stone. Particularly, a metal fry plate has a plurality of through holes therein and is used like a grill. When food such as meat is fried on the metal fry plate having the above-mentioned structure, flame and heat from a heating source are directly transferred to the meat through the through holes. Therefore, oil flowing out from the meat is burned by the flame and heat of the heating source, so that smells and harmful gas occur. Furthermore, it is hard to evenly cook the meat. As well, because burned meat easily sticks to the fry plate, the fry plate must be frequently replaced with another. Thus, the taste of meat is reduced.

[3] Moreover, when oil flowing out from the meat meets water present on the fry plate, the oil is spattered in every direction. As a result, there is a hazard of burn injury, and the circumference thereof becomes stained. Furthermore, the metal fry plate is man¬ ufactured through various chemical treatments including a process of applying raw coating material to an aluminum plate in the same manner as a cerastone or teflon coating process. Therefore, eating meat cooked on the metal fry plate may be harmful to human body.

[4] In addition, because manufacturing costs of the conventional fry plate are high, the fry plate should be reused after being washed using a cleansing agent. Here, due to a great amount of water including cleansing agent ingredient, water pollution is caused. As well, if the fry plate is reused with cleansing agent residue remaining from the washing work, it may affect human body. Furthermore, because much time and labor are required to wash the fry plate, some restaurants, which handle a large number of fry plates, have assigned the fry plate washing work to fry plate washing businesses.

[5]

Disclosure of Invention Technical Problem [6] Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and an object of the present invention is to provide a clay fry plate which prevents smoke and smells from occurring and prevents oil from being spattered when food is fried on the clay fry plate, and which improves flavor of the food and is harmless to human body, and a method of manufacturing the same.

[7] Another object of the present invention is to provide a clay fry plate which is light so that the use and maintenance thereof are easy, and which is disposable and envi¬ ronmentally-friendly, and a method of manufacturing the same.

Technical Solution

[8] In an aspect, the present invention provides a method of manufacturing a clay fry plate, including the steps of: placing clay paste in a mold; first pressing the clay paste in the mold using high hydraulic pressure; grinding a surface of the first press-formed clay fry plate; second pressing the grinded clay fry plate using high hydraulic pressure; and removing the second press-formed clay fry plate from the mold and drying the second press-formed clay fry plate in a shady place.

[9] In another aspect, the present invention provides a clay fry plate manufactured by first pressing clay paste using high hydraulic pressure, grinding the first press-formed clay fry plate, and second pressing the grinded clay fry plate using high hydraulic pressure.

[10] Preferably, the clay is yellow earth (loess).

Advantageous Effects

[11] In the present invention, because a clay fry plate is made of natural clay, the clay fry plate has relatively low thermal conductivity. Thus, food such as meat is evenly cooked without being excessively burned, so that the present invention is harmless to human body. Furthermore, because oil flowing out from meat is absorbed into the clay fry plate without being spattered, the intake of fat is reduced. Moreover, the present invention enables manufacture of the clay fry plate at reduced cost using inexpensive clay through a process of pressing the clay at high pressure such that the manufactured fry plate becomes as hard as stone, and for the clay fry plate to be disposably used. Therefore, the present invention solves problems occurring when washing it. In addition, even if the clay fry plate is scrapped after use, only clay and oil, which are degradable and may be used as fertilizer, remain. As such, the clay fry plate of the present invention is environmentally-friendly.

Brief Description of the Drawings

[12] FIG. 1 is a perspective view showing the usage of a clay fry plate according to a first embodiment of the present invention; [13] FIG. 2 is a bottom perspective view of the clay fry plate of FIG. 1; [14] FIG. 3 is a perspective view of a clay fry plate, according to a second embodiment of the present invention;

[15] FIG. 4 is a sectional view of the clay fry plate of FIG. 3;

[16] FIG. 5 is a perspective view of a clay fry plate, according to a third embodiment of the present invention; and

[17] FIG. 6 is a sectional view of the clay fry plate of FIG. 5.

Best Mode for Carrying Out the Invention

[18] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the attached drawings.

[19] FIG. 1 is a perspective view showing the usage of a clay fry plate 10 according to a first embodiment of the present invention. FIG. Ib is a bottom perspective view of the clay fry plate 10 of FIG. 1. As shown in FIGS. 1 and 2, the clay fry plate 10 according to the first embodiment of the present invention has a plate shape and is manufactured through a press-forming process at high pressure. The clay fry plate 10 may be used along with a support pan 13. Alternatively, the clay fry plate 10 may have a pair of grips, which is not shown, such that the clay fry plate 10 can be independently used. In FIGS. 1 and 2, the clay fry plate 10 has a circular shape, but the clay fry plate 10 may be manufactured in various shapes including a square shape. Furthermore, the clay fry plate 10 may have a convex shape. A plurality of concentric circular grooves 12 is formed under a lower surface of the clay fry plate 10, thus increasing heating efficiency.

[20] A method of manufacturing the clay fry plate 10 having the above-mentioned structure will be explained herein below.

[21] The method of manufacturing the clay fry plate includes the step of placing clay paste in a mold, the step of first pressing the clay paste in the mold using high hydraulic pressure, and the step of grinding a surface of the first press-formed clay fry plate. The method further includes the step of second pressing the grinded clay fry plate using high hydraulic pressure, and the step of removing the second press-formed clay fry plate from the mold and drying the second press-formed clay fry plate in the shade.

[22] Hereinafter, each manufacturing step will be explained in detail. First, at the step of placing clay paste in the mold, clay powder having consistent particle size is obtained by putting raw materials through a sieve. Thereafter, clay paste is made from the clay powder mixed with an appropriate amount of water, and the clay paste is placed in the mold.

[23] Subsequently, the clay paste is first pressed in the mold by hydraulic pressure of

400 to 600 kg/cm2 or more for about 5 to 20 seconds. The first press-formed clay fry plate is moved by a carrying unit into a grinding process, and the surface of the first press-formed clay fry plate is grinded by a grinder that rotates at high speed.

[24] The grinded clay fry plate is second pressed at hydraulic pressure of about 600 kg/ cm2 or more for about 5 to 20 seconds. Thereafter, the second press-formed clay fry plate is removed from the mold and is dried in the shade. When second pressing the grinded clay fry plate, upper and lower molds may have various shapes so as to produce a clay fry plate which has uneven upper and/or lower surfaces or a clay fry plate through which a firehole is formed. Furthermore, the second press-formed clay fry plate may be removed from the mold by air pressure which is applied upwards to the second press-formed clay fry plate. The above-mentioned press-forming process and grinding process may be variously modified by techniques well-known in the arts.

[25] As such, because the clay fry plate is manufactured through the pressing process at high pressure, the clay fry plate is as hard as stone, but it is thin and light. Accordingly, the use and maintenance thereof are easy. Particularly, because the clay fry plate is ground by a grinder that rotates at high speed, the surface is very smooth. Therefore, when food such as meat is fried on the clay fry plate, the food is not smeared with clay.

[26] As well, the clay fry plate of the present invention is made of abundant and in¬ expensive clay and is manufactured using the mold and hydraulic pressure. Con¬ sequently, the present invention may easily be adapted to mass production at reduced costs. Even if the clay fry plate is disposably used, there is no burden on a user. Furthermore, the use of the clay fry plate as a disposable solves problems occurring when washing it. In addition, even if the clay fry plate is scrapped after use, only clay and oil, which are degradable and may be used as fertilizer, remain. Therefore, the clay fry plate of the present invention is environmentally-friendly.

[27] Moreover, the clay fry plate has relatively low thermal conductivity, compared with conventional metal or stone fry plates. Therefore, food such as meat is slowly and evenly cooked, so that flavor of the food is improved. As well, because the food is not burned, it is harmless to human body. Furthermore, because oil flowing out from meat is absorbed into the clay fry plate without being spattered, the intake of fat is prevented. Moreover, clay, which is raw material of the clay fry plate, radiates far infrared rays, so that the clay fry plate of the present invention is helpful to human body.

[28] FIG. 3 is a perspective view of a clay fry plate 20, according to a second embodiment of the present invention. FIG. 4 is a sectional view of the clay fry plate 20 of FIG. 3. As shown in FIGS. 3 and 4, the clay fry plate 20 according to the second embodiment is characterized in that a plurality of fireholes 24 is formed through the clay fry plate 20 such that food on the clay fry plate 20 is cooked by a grilling method in the same manner as that of conventional grills. Because the clay fry plate 20 absorbs oil flowing out from meat, the clay fry plate 20 according to the second embodiment solves problems with the conventional fire roasters, and develops improvements to the fire roasting method. In FIG. 4, the reference numeral 22 denotes a plurality of concentric circular grooves which are formed under a lower surface of the clay fry plate 20.

[29] A method of manufacturing the clay fry plate 20 according to the second embodiment having the above-mentioned structure is the same as that of the first embodiment, other than formation of the fireholes 24 at the step corresponding to the first or second press-forming step of the first embodiment. In the method according to the second embodiment, a mold having a plurality of firehole-forming protrusions is used. That is, when clay paste is pressed by a pressing machine at high pressure, the fireholes 24 are formed in the clay fry plate 20 by the firehole-forming protrusions. Preferably, each firehole-forming protrusion has a tapered shape which reduces from the bottom to the top, so that each firehole 24 is formed in a tapered shape which reduces from the bottom to the top, as shown in FIG. 4. Thereby, the shaped clay fry plate 20 can easily be removed from the mold. Alternatively, a plurality of firehole- forming protrusions may be provided under a pressing surface of the pressing machine. In this case, each firehole forming protrusion has a tapered shape which enlarges from the bottom to the top. Then, after clay paste is pressed at high pressure by the pressing machine with the firehole-forming protrusions provided under the pressing surface, a shaped clay fry plate 20 can be easily removed from the pressing surface of the pressing machine. Of course, after the pressing process, the clay fry plate 20 is in a state of being turned upside down.

[30] FIG. 5 is a perspective view of a clay fry plate 30, according to a third embodiment of the present invention. FIG. 6 is a sectional view of the clay fry plate 30 of FIG. 5. As shown in FIGS. 5 and 6, the clay fry plate 30 according to the third embodiment is characterized in that gravel 34 is embedded in an upper surface the clay fry plate 30. Due to this construction, the clay fry plate 30 according to the third embodiment can have the advantages of a stone fry plate while also having advantages of the clay fry plate. If the gravel 34 is bio stones, the clay fry plate 30 further has advantages of a bio stone which radiates far infrared rays. The reference numeral 32 of FIG. 6 denotes a plurality of concentric circular grooves which are formed under a lower surface of the clay fry plate 30.

[31] A method of manufacturing the clay fry plate 30 according to the third embodiment having the above-mentioned structure is the same as that of the first embodiment, other than having the step of placing the gravel 34 in a mold before a second press-forming process. Here, a separate mold having a plurality of gravel seats may be used such that the gravel 34 is evenly distributed. Furthermore, the step of shaking the separate mold may be added to evenly distribute the gravel 34.

[32] Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modi¬ fications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. Industrial Applicability

[33] As described above, the present invention provides a clay fry plate which prevents smoke and smells from occurring when food such as meat is fried on the clay fry plate, and a method of manufacturing the clay fry plate. Furthermore, the clay fry plates of the present invention prevent oil from being spattered, improves the flavor of the food, and is harmless to human body.

[34] Moreover, because the clay fry plate of the present invention is light, use and maintenance thereof is easy. In addition, the clay fry plate is disposable and envi¬ ronmentally-friendly.

Claims

0/2

Claims

[1] A method of manufacturing a clay fry plate, comprising the steps of: placing clay paste in a mold; first pressing the clay paste in the mold using high hydraulic pressure; grinding a surface of the first press-formed clay fry plate; second pressing the grinded clay fry plate using high hydraulic pressure; and removing the second press-formed clay fry plate from the mold and drying the second press-formed clay fry plate in a shady place. [2] The method according to claim 1, wherein the first or second press-forming step comprises the step of: forming at least one firehole in the clay fry plate such that the firehole is reduced from a bottom to a top in a tapered shape. [3] The method according to claim 1, further comprising the step of: placing gravel on a bottom of the mold before the second press-forming process. [4] The method according to any one of claim 1, 2 or 3, wherein the said clay is yellow earth. [5] A clay fry plate manufactured by first pressing clay paste using high hydraulic pressure, grinding the first press-formed clay fry plate, and second pressing the grinded clay fry plate using high hydraulic pressure. [6] The clay fry plate according to claim 5, comprising: at least one firehole formed in the clay fry plate such that the firehole is reduced from a bottom to a top in a tapered shape. [7] The clay fry plate according to claim 5, further comprising: gravel embedded in an upper surface of the clay fry plate. [8] The clay fry plate according to any one of claim 5, 6 or 7, wherein the said clay is yellow earth.