Title:
Gas stove burner
Kind Code:
A1


Abstract:
This gas saving stove-head is designed to use in cooking at food shop or general household including for the other purposes. It could be applicable to all kinds of stove based on gaseous fuel by using engineering principle to accelerate speed of gas airflow mostly injected from the mouth of gas rest cylinder before reach to the cover through gas conduit into supply holes that are part of combustion. This could be made by assignment on the gas airflow that come out of the injector and traveled through leading conduit into gas rest cylinder and then raised upwards to the cover and supply holes to lose least buffet and resistant power of it. Simultaneously, speed of the airflow shall be accelerated by squeezing it to be smaller and after that heat arisen from combustion flame shall be wholly dammed up while outer cool air around the area shall be evacuated through little holes or vents to help efficient combustion. Rate between gas and air mixed is proper to help complete combustion and reduce soot and pollution problems. This could save gas and time taken in cooking much more than general stove in market. We could say that this gas saving stove-head helps save limited natural gas power for the benefit of our nation and people in general.



Inventors:
Puabhanich, Kuakoon (Lumlooka, TH)
Application Number:
11/484033
Publication Date:
01/25/2007
Filing Date:
07/10/2006
Primary Class:
International Classes:
F24C3/08
View Patent Images:
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Primary Examiner:
PRICE, CARL D
Attorney, Agent or Firm:
MERCHANT & GOULD P.C. (P.O. BOX 2903, MINNEAPOLIS, MN, 55402-0903, US)
Claims:
1. Gas stove-head has air-receive socket (3) before entering into gas conduit (13) and is pierced eight round holes (14) of the same size at front of air-receive socket (3) angling and spacing from the center of the same distance as shown in FIG. 5. Four round holes on ridge of air-receive socket (15) is designed for outer airflowing into mix with gas released from the injector (11) neatly and frequently (12) to help better combustion while uses gas at most high scale as shown in FIGS. 5, 6, and 7 or any chamber as the same size and distance as of the area of the socket or any chamber on its ridges that does duty of outer air evacuating in to mix with gas released the same way as above explained.

2. Gas stove-head has unequal diameter inside its gas conduit-part to reach gas rest cylinder (21) has shorter diameter and the surface inside there has characteristic of bending upwards a little to help accelerate speed of gas airflow before reach to gas rest cylinders (28)(29) more rapidly and divert part of the airflow raised upwards to mouth of gas rest cylinder (79).

3. The gas stove-head has got inner characteristic of its gas rest cylinder (22) that is cuplike round arc or the surface that has got beside and lower joint scars curving arc each could help reduce resistant and buffet power of gas airflow (34) within gas rest cylinder after the gas airflow (28)(29) traveled along gas conduit into the cylinder as shown in FIGS. 12 and 13.

4. Gas stove-head that has got characteristic of curving arc (29) within its gas rest cylinder jutted out of cylindrical shape located at central of it or any other shapes inside the cylinder (17) that turns pointed end to gas conduit (13) are on duty of veering direction of gas airflow (28)(29) come out of gas conduit to get upwards to mouth of gas rest cylinder (19) and reducing buffet power affected to cylindrical shape or others within the cylinder (17) as shown in FIGS. 8, 13, and 14 or to any jutted curving part at mouth of cylindrical shape or others within the cylinder (17) that are on duty of reducing buffet power or veering airflow or squeezing air come out of gas conduit to raise upwards to mouth of the cylinder.

5. Gas stove-head has curving ridges (25)(26) laid horizontally within gas conduit (13) or arc ridges or other dented grooves within the conduit are all on duty of managing order of gas airflow (24) within the conduit (13), increasing more surface area of it, and adding more gas airflow rate before reach to the rest cylinder as shown in FIG. 13.

6. Gas rest cylinder of gas stove-head has got characteristic of ridges standing erect in front (32) but gradually curving sloppily backwards (33). These ridges located besides cylindrical shape within the cylinder (17) and looked like curve line if looks at top side (32) are for enclosure of gas airflow come out of gas conduit (30) and raise upwards to mouth of the cylinder (31) and gas left (34) shall have more speed due to travel along curving surface (33) and or narrower as illustrated in FIGS. 9, 13, and 14.

7. Gas stove-head has got characteristics within gas rest cylinder (17) that is enclosing its inner cylindrical shapes of which have different size. The size near gas conduit (79) is varied in form of gradually smaller ones (35) and shallower at both side ahead to the other ends (36). This difference in size are on duty of accelerating more speed of gas airflow (30)(32)(34)(39)(40) (41) having come out of gas conduits (28)(29) ahead to opposite side of conduit (36) as illustrated in FIGS. 8, 9, 13, and 14.

8. Gas stove-head has got characteristics within gas rest cylinder that is enclosing cylindrical shapes or any other shapes within the cylinder (17) at the opposite end of gas conduit (36) and raised upwards (42) are all on duty of reducing or veering buffet or crash together of gas airflow come out of gas conduits (39)(40)(41) and bypassed the said shapes or others within the cylinder (17) to reduce loss of power or speed of gas airflow (43) before getting upwards to mouth of gas rest cylinder (36) as illustrated in FIGS. 11, 12, and 14.

9. Gas stove-head has got characteristics within gas rest cylinder (17) of which are smaller as from the side near gas conduit (79) to force gas airflow get more speed during bypassing cylindrical shape (17) of both sides ahead to nearly the opposite end (36). A wedge to separate gas airflow is located to face with there. The wedge looks at beside like curving ridge but like curving ridge at top side (38) turning its pointed end in opposite direction of gas airflow. The wedge plays roles of part of the airflow (39) to be raised upwards to mouth of gas rest cylinder and forced the airflow separating apart (40)(41) while its speed is higher and lifted afloat (43) or like any other curving ridges located opposite gas conduit (36) or back of inner cylindrical shape (17) that are on duty of accelerating speed of gas airflow or veering buffet or crash of the airflow or separating the airflow into directions desired as illustrated in FIGS. 9, 11, 12, and 13.

10. Gas stove-head has got unequal inner characteristics of the cover—the side near gas conduit (47) is ordinary but gradually narrower ahead to the side opposite from gas conduit (48)—that plays roles of forcing gas airflow (30)(32)(34) come out of gas rest cylinder to have much more speed before reach to outer (44) and inner (45) ring supply holes or any other unbalances to make much more gas airflow speed as illustrated in FIGS. 19, 23, and 24.

11. Gas stove-head with the cover's inner surface located curving arc ridges (49)(50) between outer (44) and inner (45) ring supply holes that these ridges shall be smaller size (49) and then gradually bigger ahead to the opposite side (50). The smaller size side (49) is near gas conduit (47) side to have had gas airflow vent ranging from the big one (51) to the small (52) for airflow from gas conduit and gas rest cylinders (30)(32)(34) to have more speed before reach to outer and inner ring supply holes and also to manage shape and direction of gas airflow neatly or any other ridges or dented grooves between outer and inner ring supply holes or only for outer or inner ring supply holes that are on duty of reducing encounter power of inner surface of the cover (46) (47) or managing order or increasing speed of gas airflow before reach to outer or inner supply holes as seen in FIGS. 14, 19, 20, 23, and 24.

12. Gas stove-head with heat dam-up cylinder (8) that inside characteristic is cup-like arc laid on the cover (6) of outer ring supply holes (44). As for beside and lower side of the said cylinder has cone-like holes (55) that end of the holes is near and direct to base area of outer ring flame (53) and along with number of hole of heat dam-up cylindrical shape (8) is as the same number as of outer ring supply holes tete-a-tete (61). These holes play role of evacuating oxygen or outer cool air (56) to help combustion at base of flame (53) tete-a-tete hole (61) or small space or any other holes at the area of the shapes that play role of blowing outer cool air to help combustion at base of outer ring flame as seen in FIGS. 24, 25 and 26.

13. Gas stove-head with two parts of heat dam-up cylindrical shapes (8) (9) as the inner shape (8) laid upon the cover (6) and the outer shape (9) upon a small part jutted out of the inner shape (82). A little distance (64) made small space between the inner shape (8) and the outer shape (9) and upper edge of the outer shape (9) shall be higher than of the inner shape (8) only a little. The distance made is to dam up heat of outer flame to let outer cool air (65) pass through little gab (64) and push outer flame (53) standing erect to bottom of utensil as seen in FIGS. 20, 24, 25 and 27.

14. Gas stove-head with inside side (18) of inner cylindrical shape (17) of gas rest cylinder (5) is thick and zigzag bends lifted afloat (20) to dam up heat of inner ring flame (57) and to make heat steam rotate (80). This could help increase heat of inner flame or any other curving ridge or groove that helps heat steam (57) of inner ring flame rotate and increase in heat as seen in FIGS. 8, 14, and 25.

15. Gas stove-head with cloak-like part (1) on its wings (67) has heat dam-up cylindrical shape (74) located around by welding to the end area of inner wings of the part. This is on duty of keep up heat inside or any other curving ridge upon the wings that plays the same role as seen in FIG. 29.

16. Gas stove-head with cloak-like part (1) on its wings (67) has little chambers or holes that play role of letting outer cool air (66) to help complete combustion or any space between the parts (70) (72) and the wing (67) that play the same role as seen in FIG. 29.

17. Gas stove-head with cloak-like part that on its wing (67) located heat dam-up cylindrical shape (70) to dam up heat within the part up protect outer air to affect flame (53) or any curving ridge on the inner wing (67) that plays role of dam up heat within the part or protect outer air to affect flame (53) or other cylinder attached to utensil legs of inner part that is able to be knocked down or jam-welded that upper most of the shape is higher than inner wing as seen in FIG. 20.

18. Gas stove-head with legs for utensil (76) placed upon the wing of the part (67) has curving ridge raising upwards at a level at upper end of them to lay utensil (76) . This could help flame spread over utensil in case of the utensil has more longer diameter than the outer wing. The flame shall not touch the shapes attached to end area of outer wing and air (74).

19. Gas stove-head that has more than one of gas conduit (13), gas rest cylinder (5) cover of gas rest cylinder (6) by means of the principle to work of curving ridge and any other groove to manage order of gas airflow in gas conduit or to increase in speed of gas airflow by reducing size of air way of the airflow or by the way of travel through curving ridge or any groove or reduce buffet and crash between the airflow or between airflow and surface by adjust slope or vertical of surface that gas airflow veered its way and then raised upwards to mouth of gas rest cylinder.

Description:

1. ChARACTERISTICS AND AIMS AT INVENTION

This gas saving stove-head that uses gas as fuel power in cooking or heat resource for other different purposes. Looking like those in general, it is designed for the purpose of getting more heat but using less gas including decrement in soot and pollution.

2. SCIENCES CONCERNING INVENTION

The first is that with Aero Dynamics concerning travel of gas's airflow through conduit into rest cylinder and acceleration of the gas airflow before passing the cover upwards to supply holes. The second is that of Thermo Dynamics concerning combustion, heat dam-up and evacuation of outer cool air (oxygen) to help complete combustion.

3. BACK GROUND OF CONCERNING SCIENCE OR TECHOLOGY

Inner and outer characteristics of gas conduit and rest cylinder of general conventional high pressure gas stove-head are cylindrical. Gas rest cylinder is topped with a donut-like cover which the inner area Is smooth and flat to help gas flow through supply holes into combustion part. The rest cylinder and the cover are both inside of cloak-like part to help protect wind blowing in and heat blowing out of it.

This gas saving stove-head is then designed to manage property shape and direction of gas's airflow inside conduit and rest cylinder. The purpose is to accelerate the gas airflow before reaching supply holes to have high speed. After that, heat of flame-to pass out of supply holes is dammed up for losing less heat and outer cool air (oxygen) shall be evacuated inside to help much more efficient combustion. The cloak-like part is designed at the criterion of entire cover to help protect heat blowing out of the part. Wings of it have little inlets to let outer air oxygen blow upward and to help most complete combustion and reduce temperature at the back of the stove (cook area) by shutting up the back of the part closely. There have been cylinders on wings of the cloak-like part to help keep and protect heat still inside.

The most important purpose of inventing this gas saving stove-head is to obtain most heat power in work and to consume less gas. Also soot and pollution arisen from incomplete combustion that are destroying environment shall be by product decreased.

3. SUMMARY EXPLANATION OF FIGURES

FIG. 1 Air-receive socket of general gas stove-head

FIG. 2 General gas stove-head and its cover

FIG. 3 Cloak-like part of general gas stove-head

FIG. 4 Showing off important parts of gas saving stove-head

FIG. 5 Air-receive socket of gas saving stove-head

FIG. 6 Air-receive socket and gas conduit of gas saving stove-head

FIG. 7 Cut-front picture of the sides of injector air-receive socket gas conduit, and outer airflow mixed with gas come out of the injector of gas saving stove-head

FIG. 8 Picture showing off inside characteristics of gas rest cylinder and enlarged picture of central area of the cylinder

FIG. 9 Side picture showing off inner characteristics of gas rest cylinder

FIG. 10 Side picture showing off gas airflow movement and inner characteristics of gas rest cylinder

FIG. 11 Picture showing off inner characteristics of gas rest cylinder opposite from gas conduit

FIG. 12 Picture showing off inner characteristics of gas nest cylinder as the same side as

FIG. 13 Partly cut-part pictures showing off characteristics and movement directions of gas conduit the airflow passed through gas conduit and gas rest cylinder

FIG. 14 Picture looking from top side of gas rest cylinder

FIG. 15 Some cumulative cut-part pictures showing off inner characteristics of gas rest conduit and gas airflow

FIG. 16 Side cut-front picture of cover of general gas stove-head showing off gas airflow within the cover

FIG. 17 Cover of general gas in put upside down position

FIG. 18 Cover of stove-head in turn right side up position

FIG. 19 Heat dam-up cylindrical shape during placing on the cover

FIG. 20 Heat dam-up cylindrical shape of gas saving stove-head

FIG. 21 Picture showing off characteristics within cover of gas saving stove-head

FIG. 22 Cover of gas saving stove-head looking from top side

FIG. 23 Cover of gas saving stove-head looking from lower side

FIG. 24 Side cut-front picture showing off details of characteristics within the cover and heat dam-up cylindrical shape

FIG. 25 Half side cut-front picture showing off characteristics of gas airflow and fame come out of supply holes

FIG. 26 Cover and heat dam-up cylindrical shape of gas saving stove-head looking from top side

FIG. 27 Partly cut-front picture of the cover and heat dam-up cylindrical shape of gas saving stove-head

FIG. 28 Partly cut-front picture of cover, heat dam-up cylindrical shape gas conduit, and gas rest cylinder showing off their inner characteristics

FIG. 29 Cumulative pictures of the gas rest cylinder, cover, and heat dam-up cylindrical shape

FIG. 30 Cloak-like part of gas saving stove-head and enlarge picture of the area to place utensil on wings of the part

FIG. 31 Cumulative picture of gas saving stove-head

5. REVELATION OF COMPLETE INVENTION

Gas stove-head in general use Comprises of core important parts: a stop valve, an air socket filling in air through gas conduit into rest cylinder and supplying gas through at cover upwards supply holes for combustion. There may be more than one of the said parts such as two pressure-control valves, two or more gas conduits. It is up to characteristics and purposes of work in use.

This gas saving stove-head comprises of core important part: cloak-like parts (1), injector with pressure-control valve (2). through air socket (3). then gas conduit (4), into gas-rest cylinder (5), after that gas supplying through cover (6), passing supply holes (7), the cover being topped by dam-up cylinder (8), and another cylinder (9) topped over again to help protect heat spreading out of the stove. Flame at supply holes shall be ignited through gas-ignite pipe (10) as shown in FIG. 4.

Combustion is most complete at property and frequently mixed rate between gas and air. A gas stove in market now has an air-receive panel looks like natural longitudinal sections of an orange as shown in FIG. 1. Injector (11) needs air flowing inside to help combustion while gas comes out of the injector needs air to mix properly through gas conduit (13). To let airflow (12) come inside frequently, the air socket is so pierced 8 holes (14) of about 10 to 15 mm in diameter (Length of the diameter is based on injector's size.) The 8 holes shall be placed at the front of inlet panel to ease air evacuated inside mostly round direction. Other 4 holes (15) are pierced under the socket to get enough air when gas is using at highest level as shown in FIGS. 5, 6, and 7 respectively.

After having passed through the injector (24) and traveled along the gas conduit (13)—before reach to the rest cylinder (28)(29) shall be accelerated its speed by reducing conduit's size at lower part only a little. At most end of the lower end of the gas conduit is a turn-up part (21) as shown in FIGS. 9, 10 and 13.

This gas saving stove-head is designed to have outside of rest cylinder looking and covering round at over top (16) in accordance with inner characteristic of its kind. This inner characteristic of the rest cylinder looking at over top is that the mouth of the rest cylinder at the side near the gas conduit (79) shall be gradually by degrees small in size ahead to the other end (36). This is a gas airflow vent form the rest cylinder upwards to the cover (6) and supply holes (7). Round cylindrical shape (17) inside at central of the rest cylinder shall be covered up (18) to prevent loss of heat of inner fire ring (57) like general gas stove-head (19). There are some zigzag bends raising up a little (20) to let heat of inner fine ring rotate (80) and get much more heat as shown in FIGS. 2, 4, 8, 9, 14 and 15.

Inner of the rest cylinder is designed to have had characteristic of cup-like round arc (22) that is different form general gas stove-head of which has had ordinary cylindrical shape (23). The purpose to have had cup-like round arc is to reduce veer of airflow after gas releasing through gas conduit as illustrated in FIGS. 2, 12, and 13.

After gas releasing from the injector (11) the gas airflow shall be started managing into more neat order of having upper (25) and under (26) ridges of curving arc inside of the gas conduit. The upper ridge is gradually higher and larger up (27) ahead to the cylindrical shape at the central area of the rest cylinder. This is to let airflow from the conduit have much more speed and order including avoidance of buffet between the airflow and the cylindrical shape inside at central of the rest cylinder (17) as illustrated in FIG. 13.

Gas airflow while travels through gas conduit (28)(29) shall be separated into two ways (30) by arc ridges jutted out of the cylindrical shape inside at central of the rest cylinder. Some of the-said airflow is forced higher up to the mouth of the rest cylinder at central (31) by building arc ridges at both sides (32) for enclosure of the above two-way gas airRow (30). The two ridges stand erect each in front but gradually curve sloppily backwards (33) and bend upwards to the mouth of the rest cylinder (36). This could make more speed of gas airflow due to curving surface. Curving swell at central (81) shall have had more order of the airflow as illustrated in FIGS. 8, 9,10, 11, 12, 13, 14 and 15.

Some of airflow shall have more (34) and more speed by gradually reducing inner size of the rest cylinder (35) and then raising higher up to opposite end of the gas conduit (36) and after that ahead to the second arc ridge (37) that is located nearly at back of the cylindrical shape. This second ridge looks like a curve wedge (Wedge shape is seen at overtop but curve shape seen at around sides.) that its pointed end (38) turns to the direction of gas airflow (34) and forcefully makes airflow left (39) separated into two ways (40)(41). This also could help accelerate more speed due to gradual pressure to smaller quantity. The both pointed ends (42) shall forcefully raised upwards to the mouth of the rest cylinder (36) at central but back of cylindrical shape. This is to make forcefully airflow to be separated into two directions—the first is into outer ring of supply holes (44) while the second is into inner ring (45) on top of the rest cylinder's cover (6) as illustrated in FIGS. 8, 10, 13 and 14.

These two pointed ends (42) are forced their directions bound for upper supply holes (outer and inner rings) by angling upwards to the mouth of the rest cylinder. This is done for avoidance of buffet between left and right side airflow (43) bypassed central of cylindrical shape (17) and for protection of heat loss before reach to supply holes as illustrated in FIG. 11.

The rest cylinder is closed at top by a donut-like cover with two rows of supply holes (7)—lower row and upper one. Holes of upper row are larger than of lower because of playing major role in combustion. There are 2 rings of supply hole—the outer ring (44) is for outer flame (53) while the inner ring (45) is for inner flame (57) as demonstrated in FIGS. 4, 24, 25 and 27.

General cover has its inner characteristic that is rather smooth and flat as demonstrated in FIG. 18. After most gas airflow inside of rest cylinders (30)(34)(39)(40) and (41) is forced into vertical line, in an ordinary and general cover (46), most airflow is rebounded back (47) as demonstrated in FIGS. 13, 16, and 18. This gas saving stove-head is therefore designed to have had the cover of which its inner side is arc ridge (49)(50) to receive airflow into supply holes and to reduce rebound power as demonstrated in FIGS. 19, 21, 23, and 24.

Inner side of the cover is arc ridges located between outer ring of supply holes (44) and inner ring (45). These arc ridges are ranged form small size (49) to larger one (50). The small arc ridges (49) are as the same side as the gas conduit to happen gab area at outer supply holes (44) and inner supply ones (45) that are ranged form large size (51) to smaller one (52). Because gas airflow, while travels along the conduit is gradually squeezed into smaller quantity before reach supply holes both outer (44) and inner (45) rings the gas airflow naturally gets more speed.

Heat of inner ring flame (45), is dammed up by thick part at central of the rest cylinder (18) with zigzag bends raising up a little (20) to let heat rotate (80) and to help flame area at central (57) get much more heat. At central of the rest cylinder there is a hole pierced for a knot (58) fixed it to the floor in case of no need of move as illustrated in FIGS. 9, 14, 24 and 25,

Inside of the cover at the side near the gas conduit (47) has got more width than both horizontal and vertical line and is gradually narrow ahead to the opposite side (48). This is to get more and more higher speed of gas airflow onto opposite side of the conduit (48) as illustrated in FIGS. 21, 23, and 24.

Then supply holes of upper ring are designed in cone-like shape (44) (45). Supply holes under the cover have diameter longer than outer ones to reduce resistant power of airflow before reach outer supply holes. These cone-like supply holes shall apply to both outer (44) and inner (45) rings as seen in FIGS. 24 and 25.

The cover (60 shall be topped over again by heat dam-up cylindrical shape to help base of flame (53) that is the hottest part to lose heat (54). Height of the cylindrical shape is not touched flame for no heat transmission to it as seen in FIGS. 24, 25, 27, and 28.

Heat spread out of combustion (54) shall be dammed up at the area of heat dam-up cylindrical shape (8) that inside characteristic is cup-like are. The shape is therefore designed to have cone-like holes (55) as much quantity as outer supply holes as seen in FIGS. 20. 25, and 26.

To let outside lower cool air (56) evacuate inside rapidly in help of combustion, each hole (55) of this heat dam-up cylindrical shape has its direction that the pointed end turning to the area of flame base (53) or a little over area of supply holes in tele-a-tele form (61). This could help more complete combustion of outer ring flame (53) on the cover (6) and well decrement of soot problem as seen in FIG. 25 and 26.

If the cover is placed at right area that the smallest part (48) is turned to the front (the side opposite from conduit), the cover and the rest cylinder are fixed together by holes Inside of the cover of the cylinder and bolts jutted out (60). The bolts are attached to the rest cylinder at side opposite from gas conduit (36) as demonstrated in FIGS. 8, 9, 13, 14 and 21.

Heat dam-up cylindrical shape is most efficient if holes around it (55) are at as the same right position as of supply holes tete-a-tete (61). The shape is therefore designed to have legs jutted out (62) of the rest cylinder. The two legs are like rat teeth to protect move of the shape in work as demonstrated in FIGS. 8, 19<and 29.

From that time, heat dam-up cylindrical shape (8) of outer flame shall be covered upon again by another outer ring of heat dam-up cylindrical shape (9) with a little space (64) from the first shape (80) to keep up heat at top of outer ring flame (53). The design is that the space between the said cylindrical shapes is the principal of evacuating outer cool air (65) to push top of outer ring flame (53) upwards to bottom of utensil and to protect heat of top flame (54) spreading out of the cylindrical shape (9) as demonstrate in FIGS. 25 and 27.

Cloak-like part (1) is designed to cover the rest cylinder (5), the cover (6), and the heat dam-up cylindrical shapes (8) (9) more closely, to keep inside heat of the part, to have more well circulation of outer air (66), and to help ease more good combustion. Wings of the part (67) are pierced into little holes (68) to help outer cool air (66) float and protect heat spreading out of the part but adding well oxygen into combustion. To pierce little holes (58) like this is to make more strength of the said wings (67), and to collect food crust as shown in FIGS. 29 and 30.

Three legs (69) of the cloak-like part shall reinforce more strength by adding thickness at them to support better utensils. Area of cylindrical shape that is section of the part (70) shall be closed upon all 3 sides and pierced a hole to insert an igniter from outside (71). The part section (70) shall be lifted higher (72) to dam up heat and to protect air pass through little holes (68) that may be effective to that under flame lifted (72). Some little holes (73) are provided for use of igniter from outside in case of there be utensil upon as shown in FIG. 30.

At the area of outer wings of the part is laid cylindrical shapes (74) around 3 sides welded into one piece of the part for loss no heat and protection of outside wind. A space is made to be able to ignite from outside in case of there be utensil upon as shown in FIG. 30.

Three legs for utensil support (76) on wings of the part (67) are designed to be smaller and more tapering to avoid buffet of flame. On top of the legs (76) shall have arc ridge made higher up at a level (77) to support utensil that has more longer diameter than outer edge of the wings. The purpose is to help flame come upwards to most bottom of utensil but made no buffet with cylindrical shapes welded to the area of outer wings of the part (74) as shown in FIG. 30.

These 3 legs (76) have little arc ridges at central (78) to place pan and utensil that has more shorter diameter than inner wings of the part. The purpose is to avoid touch of utensil bottom with the heat dam-up cylindrical shapes (7)(8) laid on the cover (6) to assign flame give heat across utensil as shown in FIG. 30.

Follow through steps and explanations as above mentioned, heat within the part (utensil bottom) shall not be lost but could use heat more effectively. Stove gives more heat and takes short time to use gas. This is to save gas but make clear combustion due to proper mixture of air and gas that could help reduce soot and pollution problems.