CN201939921U - Electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device - Google Patents
Electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device Download PDFInfo
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- CN201939921U CN201939921U CN201020670787XU CN201020670787U CN201939921U CN 201939921 U CN201939921 U CN 201939921U CN 201020670787X U CN201020670787X U CN 201020670787XU CN 201020670787 U CN201020670787 U CN 201020670787U CN 201939921 U CN201939921 U CN 201939921U
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Abstract
The utility model provides an electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device, which comprises an ultrasonic nozzle, a spray control device, a nitrogen supply device, a water supply system and a power supply system. The ultrasonic nozzle, the spray control device and the power supply system are connected sequentially through a signal wire, and the power supply system is connected with a power supply; the nitrogen supply device is connected with a gas supply pipeline, and the other end of the gas supply pipeline penetrates through the spray control device and is connected with the ultrasonic nozzle; the water supply system is connected with a water supply pipeline, and the other end of the water supply pipeline penetrates through the spray control device and is connected with the ultrasonic nozzle; and the water supply system is connected with the power supply system through a water pump power supply wire. By adopting the ultrasonic technology, the formation of fine water mist can be realized, no high-pressure pipeline or system technology needs to be combined, the requirements of the fire-extinguishing device for the high-pressure pipeline and the nozzle can be reduced effectively, and the utility model has the advantages that the fire-extinguishing device is convenient to transport and has a low cost.
Description
Technical field
The utility model relates to Water Mist Fire Extinguishing Technique, particularly a kind of electronic ultrasonic nozzle atomization fine spray extinguisher.
Background technology
Along with progress of science and technology, find that particularly halon extinguishing agent has after destruction and Montreal Protocol on Substances that Deplete the Ozone Layer in 1987 signature atmospheric ozone layer, Water Mist Fire Extinguishing Technique obtains the concern and the favor of all circles as breathing out one of main substitute technology of dragon, and Water Mist Fire Extinguishing Technique just obtained developing in the nineties in 20th century tremendously.
For the generating mode of thin water smoke, mainly contain heavy pressure fine spray at present, two kinds of technology of the thin water smoke of two-phase flow are applied to fire-fighting domain.Traditional atomizing type all has a common feature, water source or source of the gas all need sufficiently high pressure or jet velocity just can reach the thin water smoke of required particle diameter, therefore, existing fine spray extinguisher all needs the precision that conveying technology uses and water level is carried in the strict control of needs in conjunction with pressure duct, has defectives such as transportation inconvenience, water level required precision height, cost height.
Publication number is that the Chinese utility model patent of CN 101229418A discloses a kind of ultrasonic atomizing fire extinguisher, this fire extinguisher has adopted the main body of common ultrasonic atomizer as atomizing, thereby this fire extinguisher mainly contains the limitation of two aspects and has limited applying of this fire extinguisher, this fire extinguisher need accurately be controlled the height of water level on the atomising head on the one hand, thereby limited its mobility, on the other hand, if water smoke is transported to ignition point fast from water tank, can produce more serious bumping also in the process, thereby be difficult to keep the distribution of its particle diameter, so the transportation problem of water smoke has also limited the application of this device.
And in the existing ultrasonic atomization technique, the general ultrasonic atomizer that adopts, ultrasonic atomizer belongs to a kind of common immersion atomizing generating apparatus, atomising head need be immersed under the water surface during use, and on atomising head, keep certain water surface elevation, atomising head directly feeds water the energy transmission of high frequency mechanical oscillation in the underwater, thereby form fine water droplet in the high frequency cavitation, water droplet just forms thin water smoke after overflowing the water surface, and this technology has defectives such as water level required precision height, complex structure, use inconvenience.
The utility model content
The purpose of this utility model is to overcome the shortcoming of above-mentioned prior art with not enough, a kind of electronic ultrasonic nozzle atomization fine spray extinguisher simple and reasonable for structure is provided, this device adopts ultrasonic nozzle to generate thin water smoke, do not need the height of water level is accurately controlled, on the other hand, water smoke directly generates at the ultrasonic nozzle place, also greatly reduces the difficulty that water smoke is carried.
For reaching above-mentioned purpose, the utility model adopts following technical scheme:
A kind of electronic ultrasonic nozzle atomization fine spray extinguisher, comprise ultrasonic nozzle, spraying control device, nitrogen feedway, water system and electric power system, described ultrasonic nozzle, spraying control device, electric power system connect by holding wire successively, and electric power system is connected with power supply; The nitrogen feedway is connected with steam line, and the other end of steam line passes the spraying control device and is connected with ultrasonic nozzle; Water system is connected with water supply line, and the other end of water supply line passes the spraying control device and is connected with ultrasonic nozzle; Water system is connected with electric power system by the water pump supply lines.Power supply is the accumulation power supply, can be directly connected on the working power of 220V to carry out work or charging, and also can be free of attachment to other power supplys independently is the extinguishing device power supply.
Whether the spraying control button that described spraying control device comprises housing and places enclosure interior on the holding wire that described spraying control button is located at electric power system is connected, carries out Long-distance Control by holding wire to spraying work; Described steam line, water supply line pass housing respectively and are connected with ultrasonic nozzle.
Described spraying control device also comprises the nitrogen by-pass valve control that places housing outer, and the nitrogen by-pass valve control is located on the steam line.The nitrogen by-pass valve control is machinery or electronics valve, and the conveying size of nitrogen is controlled.
The nozzle that described ultrasonic nozzle comprises nozzle body and is arranged at nozzle body inside shake core and piezoelectric ceramic transducer, described nozzle body inside is a cavity, the described nozzle core that shakes is connected with nozzle body end one, and nozzle shakes and is provided with nitrogen outlet between core and the nozzle body; The shake center of core of nozzle is provided with intake tunnel, and a port of intake tunnel is the water inlet that is connected with water supply line; Nozzle body is provided with channel of nitrogen, and channel of nitrogen and nozzle body internal cavities, nitrogen outlet are interconnected, and the air inlet of channel of nitrogen is connected with steam line; The described nozzle core that shakes is connected with piezoelectric ceramic transducer, and piezoelectric ceramic transducer is connected with holding wire.
Also be connected with fixed block on the described nozzle body inwall, also be provided with sealing gasket between fixed block and the piezoelectric ceramic transducer, fixed block and nozzle shake and also are provided with seal washer between the core.
Described nozzle body is being an atomizing face with the nozzle end face that core is connected of shaking, the atomizing face of described ultrasonic nozzle end is under the control of the higher-order of oscillation signal of telecommunication of electric power system, can produce higher-order of oscillation effect, the water that order touches atomizing face forms thin water smoke under the higher-order of oscillation.
When liquid was flowed through ultrasonic nozzle, liquid can be atomized into fine drop at the exit surface of ultrasonic nozzle.
The exportable higher-order of oscillation electricity of electric power system model is to ultrasonic nozzle, and the frequency of this higher-order of oscillation signal of telecommunication can be set at the arbitrary frequency among 20kHz～3MHz.
Described nitrogen feedway comprises the nitrogen cylinder that nitrogen is housed, and nitrogen cylinder is connected with ultrasonic nozzle by steam line.
Described nitrogen is used to provide momentum to thin water smoke on the one hand, makes thin water smoke arrive at the fire extinguishing of ignition point position, and when nitrogen arrived the ignition point position with thin water smoke on the other hand, nitrogen is starvation to a certain extent, realizes the effect of fire smothering.
The water pump that described water system comprises water tank and places water tank, water pump is connected with ultrasonic nozzle by water supply line, and is connected with electric power system by the water pump supply lines.
Described water pump is fixed in water tank bottom.
Described holding wire is the multicore holding wire.
Described electric power system adopts the high frequency electric power system of prior art, can be ultrasonic nozzle the higher-order of oscillation signal of telecommunication is provided.
Near the electronic ultrasonic nozzle atomization fine mist fire-fighting process that realizes by said apparatus: described electronic ultrasonic nozzle atomization fine spray extinguisher is moved to the ignition point, press the spraying control button of spraying control device, connect the electric power system power supply, electric power system is started working; On the one hand, electric power system is passed through holding wire, the higher-order of oscillation signal of telecommunication is exported to the piezoelectric ceramic transducer of ultrasonic nozzle, piezoelectric ceramic transducer produces the high frequency mechanical oscillation under the effect of the higher-order of oscillation signal of telecommunication, and simultaneously the high frequency mechanical oscillation is passed to the nozzle core that shakes, nozzle shakes and is delivered to the atomizing face of ultrasonic nozzle after core is strengthened the high frequency mechanical oscillation, and therefore atomizing face begins high frequency and vibrate by a small margin; On the other hand, electric power system is exported to water pump in the water system by the water pump supply lines with DC current, water pump is started working and the water in the water tank is pumped into the water inlet place of ultrasonic nozzle by water supply line, water flows to the end of nozzle body by intake tunnel, after water touches the atomizing face of head of the ultrasonic nozzle that high frequency vibrates by a small margin, be atomized into the superfine water smoke of particle diameter at once; Open the valve of the nitrogen cylinder of nitrogen feedway then, nitrogen in the nitrogen cylinder enters into the air inlet of the inner channel of nitrogen of ultrasonic nozzle by steam line, and keep certain momentum to blow out at the ultrasonic nozzle water smoke that the face place forms that atomizes, make nitrogen and thin water smoke mix ejection and form fire extinguishing water smoke, at last the fire extinguishing water smoke of moulding is directly aimed at the flame at ignition point place, realized fire extinguishing.
Operation principle of the present utility model: the utility model is a utilization electronics high frequency oscillation principle, oscillating current by certain frequency on the piezoelectric ceramic transducer in ultrasonic nozzle, produce the high-frequency electrical energy signal, piezoelectric ceramic transducer in the ultrasonic nozzle is converted into ultrasonic mechanical oscillation (being ultrasonic wave) then, after this vibrating effect passes to liquid, make in liquid internal generation cavitation, under the high frequency cavitation of this liquid internal, a large amount of tiny drops are by the liquid level of dishing out, thereby form superfine water smoke.During use, water is transported to the ultrasonic nozzle place, and ultrasonic nozzle atomizes water into superfine water droplet under the effect of electric power system (higher-order of oscillation electric power system), this water droplet ignition point that under the effect of nitrogen, can go directly, thus carry out the fire-fighting work of thin water smoke.
Ultrasonic nozzle and ultrasonic atomizer are relatively, ultrasonic nozzle is directly high frequency mechanical energy to be passed to nozzle head, after liquid is transported to nozzle head, be atomized at nozzle head immediately, mist is blown the thin water smoke that i.e. formation is easy to use under the effect of auxiliary gas.
Compared with prior art, the utlity model has following advantage and beneficial effect:
1, the utility model adopts ultrasonic technology to realize the formation of its thin water smoke, need not in conjunction with needing pressure duct and systems technology, can reduce the requirement of extinguishing device effectively to pressure duct and nozzle, compare with heavy pressure fine spray, the thin water smoke technology of two-phase flow, have and carry convenient, low cost and other advantages.
2, the utility model adopts electronic ultrasonic atomization mechanism, can form superfine thin water smoke under gentle relatively situation.
3, compare with existing ultrasonic atomizatio technology, the utility model can directly spray to ignition point after generating thin water smoke, has reduced the process that water smoke is carried, and what reduced greatly that water smoke occurs in course of conveying bumps and phenomenon.
4, compare with existing ultrasonic atomizatio technology, this device need not accurate water-level control apparatus, same heavy pressure fine spray, the thin water smoke technology of two-phase flow are compared, this device need not complicated pressue device, these make this device have great advantage aspect the mobile fire extinguishing, can give full play to the initiatively advantage of fire extinguishing.
Description of drawings
Fig. 1 is the structural representation of the utility model device.
Fig. 2 is the structural representation of ultrasonic nozzle shown in Figure 1.
The specific embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is described in further detail, but embodiment of the present utility model is not limited thereto.
Embodiment
As shown in Figure 1, this electronic ultrasonic nozzle atomization fine spray extinguisher, comprise ultrasonic nozzle 2, spraying control device 3, nitrogen feedway, water system and electric power system 7, described ultrasonic nozzle 2, spraying control device 3, electric power system 7 connect by holding wire 6 successively, and electric power system 7 is connected with power supply 8; The nitrogen feedway is connected with steam line 4, and the other end of steam line 4 passes spraying control device 3 and is connected with ultrasonic nozzle 2; Water system is connected with water supply line 5, and the other end of water supply line 5 passes spraying control device 3 and is connected with ultrasonic nozzle 2; Water system is connected with electric power system 7 by water pump supply lines 9.Power supply 8 is the accumulation power supply, can be directly connected on the working power 8 of 220V to carry out work or charging, can be free of attachment to also that other power supplys 8 are independent powers for extinguishing device.
The spraying control button that described spraying control device 3 comprises housing and places enclosure interior, described spraying control button are located on the holding wire 6 that is connected with electric power system 7, whether carry out Long-distance Control by 6 pairs of spraying work of holding wire; Described steam line 4, water supply line 5 pass housing respectively and are connected with ultrasonic nozzle 2.
Described spraying control device 3 also comprises the nitrogen by-pass valve control that places housing outer, and the nitrogen by-pass valve control is located on the steam line 4.The nitrogen by-pass valve control is machinery or electronics valve, and the conveying size of nitrogen is controlled.
As shown in Figure 2, the nozzle that described ultrasonic nozzle 2 comprises nozzle body and is arranged at nozzle body inside shake core 15, piezoelectric ceramic transducer, piezoelectric ceramic transducer is two, be respectively piezoelectric ceramic transducer 16 and piezoelectric ceramic transducer 20, described nozzle body inside is a cavity, the described nozzle core that shakes is connected with nozzle body end one, and nozzle shakes and is provided with nitrogen outlet 22 between core 15 and the nozzle body; The shake center of core of nozzle is provided with intake tunnel, and a port of intake tunnel is the water inlet 18 that is connected with water supply line; Nozzle body is provided with channel of nitrogen, and channel of nitrogen and nozzle body internal cavities, nitrogen outlet are interconnected, and the air inlet 19 of channel of nitrogen is connected with steam line 4; The described nozzle core 15 that shakes is connected with piezoelectric ceramic transducer 16, and the shake periphery of core 15 of nozzle is provided with a boss, and piezoelectric ceramic transducer 16 is connected in the end face of boss; Piezoelectric ceramic transducer 16 is connected with piezoelectric ceramic transducer 20, and piezoelectric ceramic transducer 20 is connected with holding wire 6, and then is connected with spraying control device 3, electric power system 7 by holding wire 6.
Also be connected with fixed block on the described nozzle body inwall, also be provided with sealing gasket 17 between fixed block and the piezoelectric ceramic transducer, fixed block and nozzle shake and also are provided with seal washer 21 between the core.
Described nozzle body is being an atomizing face 14 with the nozzle end face that core 15 is connected of shaking, the atomizing face 14 of described ultrasonic nozzle end is under the control of the higher-order of oscillation signal of telecommunication, can produce higher-order of oscillation effect, the water that order touches atomizing face 14 forms thin water smoke under the higher-order of oscillation.
The electric power system 7 exportable higher-order of oscillation signals of telecommunication are to ultrasonic nozzle 2, and the frequency of this higher-order of oscillation signal of telecommunication can be set at the arbitrary frequency among 20kHz～3MHz.
Described nitrogen feedway comprises the nitrogen cylinder 12 that nitrogen is housed, and nitrogen cylinder 12 is connected with ultrasonic nozzle 2 by steam line 4.
Described nitrogen is used to provide momentum to thin water smoke on the one hand, makes thin water smoke arrive at the fire extinguishing of ignition point position, and when nitrogen arrived the ignition point position with thin water smoke on the other hand, nitrogen is starvation to a certain extent, realizes the effect of fire smothering.
The water pump 11 that described water system comprises water tank 10 and places water tank 10, water pump 11 is connected with ultrasonic nozzle 2 by water supply line 5, and is connected with electric power system 7 by water pump supply lines 9.
Described water pump 11 is fixed in water tank 10 bottoms.
Described holding wire 6 is a multicore holding wire 6.
Described electric power system 7 adopts the high frequency electric power system of prior art, can be ultrasonic nozzle the higher-order of oscillation signal of telecommunication is provided.
Near the electronic ultrasonic nozzle atomization fine mist fire-fighting process that realizes by said apparatus: described electronic ultrasonic nozzle atomization fine spray extinguisher is moved to the ignition point, press the spraying control button of spraying control device 3, connect the electric power system power supply, electric power system 7 is started working; On the one hand, electric power system 7 is by holding wire 6, the higher-order of oscillation signal of telecommunication is exported to the piezoelectric ceramic transducer 16 and the piezoelectric ceramic transducer 20 of ultrasonic nozzle 2, piezoelectric ceramic transducer produces the high frequency mechanical oscillation under the effect of the higher-order of oscillation signal of telecommunication, and simultaneously the high frequency mechanical oscillation is passed to the nozzle core 15 that shakes, nozzle shakes and is delivered to the atomizing face 14 of ultrasonic nozzle 2 after core 15 is strengthened the high frequency mechanical oscillation, and therefore atomizing face 14 begins high frequency and vibrate by a small margin; On the other hand, electric power system 7 is exported to water pump 11 in the water system by water pump supply lines 9 with DC current, water pump 11 is started working and the water in the water tank 10 is pumped into water inlet 18 places of ultrasonic nozzle 2 by water supply line 5, water flows to the end of nozzle body by intake tunnel, after water touches the atomizing face 14 of head of the ultrasonic nozzle 2 that high frequency vibrates by a small margin, be atomized into the superfine water smoke of particle diameter at once; Open the valve of the nitrogen cylinder of nitrogen feedway then, nitrogen in the nitrogen cylinder enters into the air inlet 19 of ultrasonic nozzle 2 inner channel of nitrogen by steam line 4, and keep certain momentum to blow out at the ultrasonic nozzle water smoke that face 14 places form that atomizes, make nitrogen and thin water smoke mix ejection and form fire extinguishing water smoke 1, at last the fire extinguishing water smoke 1 of moulding is directly aimed at the flame 13 at ignition point place, realized fire extinguishing.
Operation principle of the present utility model: the utility model is a utilization electronics high frequency oscillation principle, oscillating current by high frequency on piezoelectric ceramic transducer 16 in ultrasonic nozzle 2 and the piezoelectric ceramic transducer 20, piezoelectric ceramic transducer is converted into ultrasonic mechanical oscillation (being ultrasonic wave), after this vibrating effect passes to liquid, make liquid be shredded into minimum drop by high-frequency mechanical vibration, and the liquid level of being dished out, thereby near shower nozzle, form superfine water smoke.During use, water is transported to ultrasonic nozzle 2 places, the atomizing face 14 of ultrasonic nozzle 2 atomizes water into superfine water droplet under the higher-order of oscillation action of electric signals that electric power system 7 produces, this water droplet flame 13 of ignition point that under the effect of nitrogen, can go directly, thus carry out the fire-fighting work of thin water smoke.
The foregoing description is the utility model preferred implementation; but embodiment of the present utility model is not restricted to the described embodiments; other any do not deviate from change, the modification done under spiritual essence of the present utility model and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within the protection domain of the present utility model.
Claims (9)
1. electronic ultrasonic nozzle atomization fine spray extinguisher, it is characterized in that: comprise ultrasonic nozzle, spraying control device, nitrogen feedway, water system and electric power system, described ultrasonic nozzle, spraying control device, electric power system connect by holding wire successively, and electric power system is connected with power supply; The nitrogen feedway is connected with steam line, and the other end of steam line passes the spraying control device and is connected with ultrasonic nozzle; Water system is connected with water supply line, and the other end of water supply line passes the spraying control device and is connected with ultrasonic nozzle; Water system is connected with electric power system by the water pump supply lines.
2. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 1 is characterized in that: the spraying control button that described spraying control device comprises housing and places enclosure interior, and described spraying control button is located on the described holding wire; Described steam line, water supply line pass housing respectively and are connected with ultrasonic nozzle.
3. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 2 is characterized in that: described spraying control device also comprises the nitrogen by-pass valve control that places housing outer, and the nitrogen by-pass valve control is located on the steam line.
4. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 2, it is characterized in that: the nozzle that described ultrasonic nozzle comprises nozzle body and is arranged at nozzle body inside shake core and piezoelectric ceramic transducer, described nozzle body inside is a cavity, the described nozzle core that shakes is connected with the end one of nozzle body, and nozzle shakes and is provided with nitrogen outlet between core and the nozzle body; The shake center of core of nozzle is provided with intake tunnel, and a port of intake tunnel is the water inlet that is connected with water supply line; Nozzle body is provided with channel of nitrogen, and channel of nitrogen and nozzle body internal cavities, nitrogen outlet are interconnected, and the air inlet of channel of nitrogen is connected with steam line; The described nozzle core that shakes is connected with piezoelectric ceramic transducer, and piezoelectric ceramic transducer is connected with holding wire.
5. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 4, it is characterized in that: also be connected with fixed block on the described nozzle body inwall, also be provided with sealing gasket between fixed block and the piezoelectric ceramic transducer, fixed block and nozzle shake and also are provided with seal washer between the core.
6. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 4 is characterized in that: described nitrogen feedway comprises the nitrogen cylinder that nitrogen is housed, and nitrogen cylinder is connected with ultrasonic nozzle by steam line.
7. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 6, it is characterized in that: the water pump that described water system comprises water tank and places water tank, water pump is connected with ultrasonic nozzle by water supply line, and is connected with electric power system by the water pump supply lines.
8. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 7, it is characterized in that: described water pump is fixed in water tank bottom.
9. electronic ultrasonic nozzle atomization fine spray extinguisher according to claim 1 is characterized in that: described holding wire is the multicore holding wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020670787XU CN201939921U (en) | 2010-12-21 | 2010-12-21 | Electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020670787XU CN201939921U (en) | 2010-12-21 | 2010-12-21 | Electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device |
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| Publication Number | Publication Date |
|---|---|
| CN201939921U true CN201939921U (en) | 2011-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020670787XU Expired - Lifetime CN201939921U (en) | 2010-12-21 | 2010-12-21 | Electronic ultrasonic nozzle type atomized fine water mist fire-extinguishing device |
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| CN (1) | CN201939921U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019060A (en) * | 2010-12-21 | 2011-04-20 | 中山大学 | Electronic ultrasonic spray nozzle-atomized water mist extinguishing apparatus and method |
| CN109092615A (en) * | 2018-08-10 | 2018-12-28 | 中国人民解放军国防科技大学 | Rotor-free jet spray fan |
-
2010
- 2010-12-21 CN CN201020670787XU patent/CN201939921U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102019060A (en) * | 2010-12-21 | 2011-04-20 | 中山大学 | Electronic ultrasonic spray nozzle-atomized water mist extinguishing apparatus and method |
| CN102019060B (en) * | 2010-12-21 | 2012-08-15 | 中山大学 | Electronic ultrasonic spray nozzle-atomized water mist extinguishing apparatus and method |
| CN109092615A (en) * | 2018-08-10 | 2018-12-28 | 中国人民解放军国防科技大学 | Rotor-free jet spray fan |
| CN109092615B (en) * | 2018-08-10 | 2019-12-31 | 中国人民解放军国防科技大学 | Rotor-free jet spray fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20120815 |