CN201281385Y - Belt type line hearth gas range - Google Patents
Belt type line hearth gas range Download PDFInfo
- Publication number
- CN201281385Y CN201281385Y CNU200820134034XU CN200820134034U CN201281385Y CN 201281385 Y CN201281385 Y CN 201281385Y CN U200820134034X U CNU200820134034X U CN U200820134034XU CN 200820134034 U CN200820134034 U CN 200820134034U CN 201281385 Y CN201281385 Y CN 201281385Y
- Authority
- CN
- China
- Prior art keywords
- gas
- burner
- burner hearth
- cooker
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Abstract
Disclosed is a gas stove with a profile line hearth; wherein, a profile line interlayer chamber is added between the hearth and the bottom surface of a pot of the existing gas stove. The lower part of the gas stove is provided with a burner and the upper part is provided with a ring flue chamber and an air heater; the burner, the ring flue chamber and the air heater are totally called a profile line hearth; a centrifugal fan which is specially designed and manufactured sends the wind to the interlayer chamber, the hot air flowed out enters the burner and is mixed with the fuel gas for burning; the high temperature fuel gas flows sequentially through the ring flue chamber and a narrow passage which is formed between the inner side surface of the profile line hearth and the bottom surface of the pot, then flows into a chimney; the burner is composed of a swirl blade cascade, a bowl-shaped shell and a taper combustion cylinder; each blade cascade flow passage is provided with a small hole from which the fuel gas flows out and mixes with the air flowing from the blade cascade for burning, thus various small combustion chambers are formed; a proportioning valve is a diplopore plug valve which is a step valve axis being provided with openings along two different diameters at the same direction and the same circumference angle; and the proportioning valve proportionally supply air and fuel gas. The gas stove with profile line hearth is better in energy saving, environmental protection, healthiness and hygiene compared with the existing gas stove.
Description
Affiliated technical field:
The utility model relates to a kind of kitchen range, specially refers to a kind ofly to utilize the molded lines chamber structure to promote heat utilization efficiency and utilize the eddy flow leaf grating and taper combustion barrel structure is eliminated the kitchen range of CO.
Background technology:
The dining room with the shortcoming of gas-cooker is now: 1. the high-temperature fuel gas short circuit flows away, and heat energy does not fully obtain utilizing; 2. the pot heating surface does not play a role fully; 3. combustion gas is low to the bottom of a pan face heating strength; 4. air and fuel gas separate regulation, their difficulties reach matching relationship, 5. adopt the single injector burner, are difficult to burning fully.The shortcoming of household gas range is: 1. opening wide burning has nearly half heat to be dissipated in the kitchen with exhaust; 2. injection mixing injection causes imperfect combustion less than enough air; 3. incomplete combustion, aromatic series gas has carcinogenesis in the exhaust, jeopardizes people's health; 4. tail gas comes the indoor people of making and feels that the kitchen is scorching hot, and all these causes, and existing gas-cooker heat utilization efficiency is low, CO exceeds standard, unhealthy, antihygienic drawback.
Summary of the invention:
The purpose of researching and developing this molded lines burner hearth gas-cooker is: first improves heat utilization efficiency; Second reduces chemically incomplete combustion thing CO; The 3rd is easy to operate.Adopted following six technical measures: " 1 " has adopted the molded lines chamber structure for this reason, promptly in the burner hearth of existing gas-cooker, add one with the similar molded lines burner hearth of the bottom of a pan face shape, play a part isolated heat, reclaim heat and augmentation of heat transfer, it is partly formed by three: 1. double-deck chamber, form by wrapping mutually layer by layer with the bottom of a pan face molded lines similar interior plate (9), outer panel (11) and dividing plate (10), 2. annular smoke-box (4), by the upper end of outer panel with "
" annular smoke-box (4) and hearth plate (1) three constitute; play a part to collect flue gas, 3. economizer bank (3) is a semicircle endless tube; be arranged in the annular smoke-box; interior blowing air, and nationality to be absorbing the waste heat of flue gas, outside the junction of semicircle endless tube and outer panel on the side plate; have round; take this air is incorporated into equably the inside and outside chamber of double-deck chamber, i.e. inner cavity chamber that is made up of interior plate and dividing plate and the outer chamber of being made up of outer panel and dividing plate.Flow air in chamber both played a role in insulation, and played the backheat effect again, finally flowed into burner.High-temperature fuel gas then flows into smoke-box through the slype that is formed by double-deck chamber interior plate and the bottom of a pan face, and the exothermic effects of combustion gas to the bottom of a pan face strengthened in this measure, has strengthened the pot face widely and has absorbed the ability of heat, thereby improved heat utilization efficiency." 2 " the blower fan group (22) (23) (24) that has adopted specialized designs to make, according to the requirement of gas-cooker to wind regime, select to satisfy on the market blower fan of its blast requirement, the nominal volume flow is all excessive, historical facts or anecdotes border applying working condition point all is in low discharge (high pressure) district, inefficiency so wasted work are big, and be uneconomical.Blower fan group through the specialized designs manufacturing, it belongs to the low-specific-speed blower fan that pressure head is higher, flow is little, what drag it is 220V, 2800rpm, low noise ac motor, blower fan is then selected radial type or backward bending type for use, is had the alternate impeller of multi-disc deviated splitter vane, in order to reduce the loss of leaking out, motor side is exactly the air draught side, and the cooling air of motor directly enters the blower fan inlet scoop, the impeller another side then seals, and all above-mentioned considerations all can reduce the manufacturing cost and the operating cost of blower fan group widely." 3 " be equipped with below the molded lines burner hearth by eddy flow leaf grating (13); the burner that bowl-type shell (17) and taper combustion barrel (12) are formed; see Fig. 2; bowl-type shell (17) is fastened on (10) by screw thread (32); fuel gas is housed on the bowl-type shell (17) enters pipe (31); start-up burner (16) and photoelectricity blowout protection device (15); see Fig. 3; the eddy flow leaf grating is a cast iron disk; on be cast with logical fuel gas aperture (34) and blade (35); see Fig. 4; blade is evenly arranged by external diameter and is pointed to internal diameter; and all be cut in one round; Circular Plate (33) below blade and the taper combustion barrel (12) is formed a plurality of independently leaf grating runners; air by in the outer radial through flow and with the fuel gas mixing after-combustion that flows out by the fuel gas aperture; the high-temperature fuel gas that flows out leaf grating forms a circle swirl flame in taper combustion barrel bottom; up enter the taper combustion barrel then, gone through diameter and reduced; the rotation aggravation; mix and disturb enhancing; temperature improves; the complete a plurality of process of burning." 4 " adopted ratio adjusting valve, it is one two a ladder oblique crank Z, and perpendicular to axle, big shaft part wide-bore is crossed air, little shaft part is opened aperture and is crossed fuel gas, and the fuel gas kind of two hole size values and piping resistance, blower pressure, use is relevant with the diameter of place section axle.Such as burn tangerine bar gas, because of calorific value low, the fuel pore will be greatly, again such as preventing that nitrogen oxide from producing, theoretical temperature combustion must be observed and 2500 ℃ condition can not be surpassed, airport will be greatly, the sizes values that all this kind must determine two holes by simulated test and calculating, and the trace adjusting that remedies design deviation then can be undertaken by the valve of adjusting (19) (20) that is located on the pipeline of the place ahead, hole.With respect to axle, the angle of circumference of two hole correspondences should be with value in the same way, and this is to guarantee synchronous condition.The spiral arm of one band contact also is housed on the valve shaft; communicate with the electric contact that is placed in each swing angle respectively; different operating modes with indicator lamp indication firepower size, incendiary source kept burning day and night, truce; so-called incendiary source kept burning day and night is meant when the ratio adjusting valve aperture and transfers to hour; form a circle flame faint but that do not extinguish at leaf grating runner exit place; become incendiary source, used when devoting oneself to work again after the work of short interruption kitchen range.The kitchen range of sealing burning structure, because can't see flame, the operating mode indication is particularly important." 5 " adopted the photoelectricity blowout protection device (15) that is located at burner bottom; with the overheat protector (25) that is located at the air preheater inlet; flame-out signal and heat alarm make the actuating of relay; they are all by the supply of the same plug valve of same magnet control with fuel shutoff gas; a torque spring and a bayonet socket disk have been fixed on the cock valve shaft; the artificial plug valve of opening; simultaneously torque spring is loaded; the dop set of electromagnet is in the bayonet socket of plug valve bayonet socket figure dish; to keep plug valve to continue the position of opening; signal is arranged; the actuating of relay, electromagnet dop are sucked from the disk bayonet socket of plug valve, and valve shaft is under the torque spring effect; rotate and close, cut off fuel gas source.Adopt this structure to be based on following consideration, valve work is under electroless state, and is reliable and secure; Valve is a plug valve, good seal, and action force is little, and manual reset is easy, the good layout.Overtemperature protection is originally in order to protect pan to be burnt because of water dryouies; delivery temperature can be above 350 ℃ yet when " quick-fried " cooking operation but because of these kitchen range had both made; when the overtemperature protection actuator temperature is set in 350 ℃; protective effect becomes the food that is boiled, fries for protection can not burnt, and this very needs in life." 6 " adopted the start-up burner (16) that is located on the following bowl-type shell of burner (17), its structure is to fill in an air hose sealedly at an iron pipe, fill in not too longly, the termination that just is placed on pipe gets final product, when using kitchen range, switch power supply, blower fan work promptly has a small gangs of air to be drawn towards air hose, flows into taper combustion barrel bottom at last, as combustion air, then flow through full pipe at ordinary times during igniting as the cooling air.The high-field electrode that a pair of insulation is good is filled in this iron pipe hermetically, and length gets final product from the about 20mm of the iron pipe other end, and a fuel gas pipe is filled in the 10mm from the spark place hermetically.Used the particular usage valve of a belt switch during operation, during igniting, switch leaves high voltage source earlier, opens fuel gas again, and torch produces, and opens ratio adjusting valve, and main fuel gas---primary air comes, and lights, and the particular usage valve of belt switch closes fuel gas, closes high voltage source again.
The tradition gas-cooker divides family expenses, dining room usefulness, several classes in restaurant, hotel, purposes has difference slightly, but common shortcoming all is that heat utilization efficiency is low, the CO discharging exceeds standard, employing has the present invention's " gas-cooker of ribbon line burner hearth " of " disturbance mixes, seals burning, augmentation of heat transfer " structure, with traditional gas-cooker ratio, heat utilization efficiency brings up to 90% from 50%, and is energy-conservation; CO discharging is reduced to ≈ 0PPM, environmental protection from 〉=700PPM; Waste gas is in line outdoor, does not have carcinogenic gas and looses and to stay within health; The electromechanical integration operation, handy.
Description of drawings:
Below in conjunction with accompanying drawing the present invention's " gas-cooker of ribbon line burner hearth " is described in further detail.
Fig. 1 is the gas-cooker schematic diagram of ribbon line burner hearth.
Fig. 2 is the burner schematic diagram.
Fig. 3 is an eddy flow leaf grating front view.
Fig. 4 is an eddy flow leaf grating top view.
1 is hearth plate among the figure, and 2 is pot, and 3 is economizer bank; 4 is annular smoke-box, and 5 for air enters pipe, and 6 is flue gas discharge opening; 7 is inner cavity chamber, and 8 is the bottom of a pan face, and 9 is interior plate; 10 is every the utmost point, and 11 is outer panel, and 12 are the taper combustion barrel; 13 is the eddy flow leaf grating, and 14 is the primary air pipe, and 15 is photoelectricity blowout protection device; 16 is start-up burner, and 17 is the bowl-type shell, and 18 is ratio adjusting valve; 19 are the air valve of adjusting, and 20 are the fuel gas valve of adjusting, and 21 is main fuel gas inlet; 22 is the motor cooling air intake, and 23 is motor, and 24 is blower fan; 25 is overheat protector, and 26 experience head for photoelectricity, and 27 is holding wire; 28 is the igniter fuel tracheae; 29 are the igniting air hose, and 30 is the electric spark high-voltage power-line, and 31 is main fuel gas inlet tube; 32 is connecting thread; 33 is Circular Plate, and 34 is the fuel pore, and 35 is blade; 36 is heat-preservation cotton (surrounding kitchen range molded lines burner hearth outer panel, all is being heat-preservation cotton in its dotted line).
The specific embodiment:
The specific embodiment that this place is said is to introduce a molded lines burner hearth gas-cooker that produces shown in figure one, and the pot diameter is Φ 320, and pot is dark to be 122mm, completely adorns 3.8Kg water, and the bottom of a pan heating surface area is 0.11m
2, and the physical dimension of recommending below, they can be because of different some variation with purposes of size of kitchen range.Subsequent also will being presented under the same experimental condition, the comparison of it and traditional kitchen range is to find out its advantage place.
Press Fig. 1, the molded lines burner hearth is formed by 0.6mm steel plate punching press roll welding, and spacing is 3mm between recommendation interior plate (9) and the bottom of a pan face (8).
Press Fig. 2,3,4, burner blades (35) height is 2.5mm, 16, and 16 at fuel pore (34), diameter 1.5mm, nearly leaf grating exit, position.
Ratio adjusting valve, large-diameter 26mm opens 13mm hole blowing air, and small axle diameter 2.6mm opens the logical oil gas in 1.3mm hole, divides big fire, moderate heat, little fire, protects fiery, the five retaining light indications of ceasing fire.
During kitchen range work, requiring blower pressure is the 50mm water column, and flow is 2.8M
3/ H, this moment, power was 6W, did not have suitable blower fan, and having selected a pressure for use is the 45mm water column, and flow is 60M
3The blower fan of/H gathers together to be used.
Require the sparking voltage of igniter chamber higher, two conventional domestic gas-cooker electric ignition high-tension coil series connection of this enforcement, the long 10mm of spark turns white, and practicality shows the reliability height.
Air capacity and oil tolerance are measured with orifice flowmeter and spinner flowmeter respectively.
The result of the test of the gas-cooker of conventional domestic gas-cooker and ribbon line burner hearth:
A. same pot is all adorned 3.65Kg water, all from 28 ℃ of burnings to 100 ℃;
B. use same oil gas flow, 0.1697Kg/H;
C. the conventional domestic gas-cooker has been used 21Min and has been used oil gas 0.059395Kg, i.e. 59.4 gram gas;
D. the gas-cooker of ribbon line burner hearth has been used 11Min and has been used oil gas 0.031112Kg, and promptly 31.1 gram gas are saved oil gas 47.6% than conventional domestic gas-cooker;
E. heat utilization efficiency: conventional domestic gas-cooker 44.53%, the gas-cooker 84.58% of ribbon line burner hearth, the insulation of this enforcement kitchen range is bad, and the kitchen range heat radiation reaches 188 kilocalories, and improving the back heat utilization efficiency can surpass 90%;
FCO discharging: conventional domestic gas-cooker〉700PPM, the gas-cooker ≈ 0PPM of ribbon line burner hearth;
G delivery temperature: 550 ℃ of conventional domestic gas-cookers, 85 ℃ of the gas-cookers of ribbon line burner hearth.
Claims (7)
1. the gas-cooker of a ribbon line burner hearth, it is made up of blower fan, ratio adjusting valve, molded lines burner hearth, burner, start-up burner and flame-out, overheat protector etc., it is characterized in that: 1. add a molded lines burner hearth of forming just as the similar double-deck chamber (9) (10) (11) in the bottom of a pan, annular smoke-box (4), air heater (3) in the burner hearth of gas-cooker now; 2. adopt little rotating ratio; one side totally enclosed centrifugal blower (24); 3. be equipped with below the molded lines burner hearth by eddy flow leaf grating (13); the burner that bowl-type shell (17) and taper combustion barrel (12) are formed; 4. firepower selection percentage control valve (18) is a coaxial line; same angle of circumference; the diplopore plug valve of perforate on two diameter segment; the spiral arm of one band contact is housed on the valve shaft; electric contact with each swing angle position communicates respectively; with indication firepower size; igniting kept burning day and night; the operating mode of truce; 5. be positioned at the photoelectricity blowout protection device (15) of burner bottom and be positioned at the thermocouple overheat protector (25) that air heater (3) enters the mouth, all control same plug valve with fuel shutoff gas by same electromagnet dop.
2. the gas-cooker of a kind of ribbon line burner hearth according to claim 1, it is characterized in that the burner hearth of present gas-cooker is changed into the molded lines burner hearth, it partly forms the 1. double-deck chamber of molded lines shape by three, it is wrapped mutually layer by layer by the similar interior plate (9) of molded lines and the bottom of a pan face molded lines, outer panel (11) and dividing plate (10) and forms, 2. annular smoke-box, it by the upper end and of outer panel "
" the type ring flat-plate is that annular smoke-box (4) and hearth plate (1) constitute, 3. economizer bank is a semicircle endless tube, is arranged in the annular smoke-box, semicircle endless tube (3) has porous to communicate with outer panel (11) junction, takes this air is incorporated into double-deck chamber.
3. the gas-cooker of a kind of ribbon line burner hearth according to claim 1, it is characterized in that adopting centrifugal blower with multi-disc blade impeller, blower fan is totally-enclosed on one side, and another side is that the inlet scoop has been installed motor again simultaneously, and promptly the cooling air of motor directly enters the blower fan inlet scoop.
4. the gas-cooker of a kind of ribbon line burner hearth according to claim 1, it is characterized in that the molded lines lower furnace portion is equipped with burner, it is made up of eddy flow leaf grating group (13), bowl-type shell (17) and taper combustion barrel (12), a plurality of leaf grating runners have been formed, one fuel gas aperture is arranged in each leaf grating runner, the air mixing after-combustion that the fuel gas that flows out and cascade flow are come has become small combustion chamber one by one, and the high-temperature fuel gas of outflow enters the taper combustion barrel.
5. the gas-cooker of a kind of ribbon line burner hearth according to claim 1; it is characterized in that firepower selects to have adopted ratio adjusting valve; it is one two a ladder oblique crank Z; perpendicular to axle; big shaft part wide-bore is crossed air; little shaft part is opened aperture and is crossed fuel gas; the angle of circumference of two hole correspondences should be with value in the same way; the spiral arm of one band contact is housed on the valve shaft; communicate with the electric contact that is placed in each swing angle respectively, with indicator lamp indication firepower size; incendiary source kept burning day and night; each operating mode of ceasing fire, incendiary source kept burning day and night are to transfer to hour when the ratio adjusting valve aperture; leaf grating runner exit place forms a circle flame faint but that do not extinguish, has become incendiary source.
6. the gas-cooker of a kind of ribbon line burner hearth according to claim 1; it is characterized in that adopting the photoelectricity blowout protection device (15) that is located at burner bottom; with the overheat protector (25) that is located at the air preheater inlet; flame-out signal and heat alarm make the actuating of relay; they are all by the supply of the same plug valve of same magnet control with fuel shutoff gas; a torque spring and a disk bayonet socket have been fixed on the cock valve shaft; the artificial plug valve of opening; simultaneously torque spring is loaded; the dop set of electromagnet is in the bayonet socket of plug valve; continue to open to keep plug valve; signal comes the actuating of relay, and the dop of electromagnet is sucked from bayonet socket, and valve shaft is under the effect of torque spring power; rotate and close, cut off fuel gas source.
7. the gas-cooker of a kind of ribbon line burner hearth according to claim 1, it is characterized in that adopting the start-up burner (16) that is located on the following bowl-type shell of burner (17), its structure is to fill in an air hose, a pair of high-field electrode, a fuel gas pipe sealedly at a pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820134034XU CN201281385Y (en) | 2008-09-09 | 2008-09-09 | Belt type line hearth gas range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820134034XU CN201281385Y (en) | 2008-09-09 | 2008-09-09 | Belt type line hearth gas range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201281385Y true CN201281385Y (en) | 2009-07-29 |
Family
ID=40928259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820134034XU Expired - Fee Related CN201281385Y (en) | 2008-09-09 | 2008-09-09 | Belt type line hearth gas range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201281385Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776287B (en) * | 2009-01-08 | 2012-10-10 | 黄振明 | Heat transfer and combustion enhanced gas stove |
| CN106594806A (en) * | 2016-12-23 | 2017-04-26 | 宁波方太厨具有限公司 | Gas-electricity combined combustor of gas stove and adjusting valve for combustor |
-
2008
- 2008-09-09 CN CNU200820134034XU patent/CN201281385Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101776287B (en) * | 2009-01-08 | 2012-10-10 | 黄振明 | Heat transfer and combustion enhanced gas stove |
| CN106594806A (en) * | 2016-12-23 | 2017-04-26 | 宁波方太厨具有限公司 | Gas-electricity combined combustor of gas stove and adjusting valve for combustor |
| CN106594806B (en) * | 2016-12-23 | 2019-06-28 | 宁波方太厨具有限公司 | A kind of pneumoelectric combination burner of gas-cooker and regulating valve for the burner |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101776287B (en) | Heat transfer and combustion enhanced gas stove | |
| CN201281385Y (en) | Belt type line hearth gas range | |
| CN203848290U (en) | Premixed fuel gas positive pressure burning energy-saving steam generator | |
| CN202195519U (en) | Energy-saving environment-friendly combustion furnace adopting silicon carbide hearth | |
| CN208983352U (en) | Interior ring fire cover, burner and gas-cooker | |
| CN205678721U (en) | The single head of a kind of energy-saving high-efficiency environment-friendly fries stove | |
| CN108413398A (en) | A kind of heat build-up catalytic type multi-head burner | |
| CN204901873U (en) | Energy -saving stove of air guide hat type wick with bellows | |
| CN209857115U (en) | Large range | |
| CN110260311B (en) | Commercial gas turbine supercharged double-mixing burner | |
| CN208253582U (en) | A kind of heat build-up catalytic type multi-head burner | |
| CN202581310U (en) | Alcohol group high-temperature gasification fire control cover | |
| CN202581814U (en) | Air current limiting device for smoke tube of gas appliance | |
| CN206018973U (en) | Gas heater | |
| CN202204000U (en) | Dimethyl ether household combustion equipment | |
| CN206514297U (en) | A kind of burner for gas kitchen range | |
| CN205383773U (en) | Energy -conserving gas boiler | |
| CN205173979U (en) | Novel heating of direct combustion formula evaporimeter device | |
| CN204478168U (en) | A kind of screwed pipe whirlwind location combustion furnace | |
| CN203642251U (en) | Alcohol-based high-temperature gasification fire control furnace | |
| CN103672889A (en) | Intelligent energy-saving gas cooker and energy-saving combustor | |
| CN109163359B (en) | Chinese food gas cooking stove | |
| CN210688710U (en) | Dry burning prevention energy-saving gas heating water heater | |
| CN208704151U (en) | Infrared gas heating or infrared gas and electrically heated water heater | |
| CN209944427U (en) | Energy-saving cooking bench capable of preventing gas from leaking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090729 Termination date: 20100909 |