CN201540119U - Electronic lead seal sensor and lower-mounted valve - Google Patents
Electronic lead seal sensor and lower-mounted valve Download PDFInfo
- Publication number
- CN201540119U CN201540119U CN200920279722XU CN200920279722U CN201540119U CN 201540119 U CN201540119 U CN 201540119U CN 200920279722X U CN200920279722X U CN 200920279722XU CN 200920279722 U CN200920279722 U CN 200920279722U CN 201540119 U CN201540119 U CN 201540119U
- Authority
- CN
- China
- Prior art keywords
- magnetic element
- valve
- electronic
- lead sealing
- electronic lead
- 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 - Lifetime
Links
Images
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The embodiment of the utility model discloses an electronic lead seal sensor used in a lower-mounted valve, which comprises a linkage shaft, a plurality of magnetic elements and a detection circuit. The linkage shaft is connected with a valve rod of the lower-mounted valve, the plurality of magnetic elements are arranged on the linkage shaft, and the detection circuit fixed inside a cavity of the lower-mounted valve is arranged at the opposite position to the magnetic elements and comprises an electronic probe, a conversion unit and an output unit. The utility model also discloses the lower-mounted valve equipped with the electronic lead seal sensor, wherein the electronic lead seal sensor is disposed inside the lower-mounted valve. The detection circuit part of the sensor is directly fixed inside the lower-mounted valve. The magnetic elements are disposed on the linkage shaft and connected with the valve rod to realize integration forming of the lower-mounted valve and the sensor, thereby not only realizing the purpose of monitoring displacement of the valve rod to prevent oil product loss, but also achieving the effect of difficult illegal stealing due to the fact that the sensor is arranged inside the lower-mounted valve. Additionally, the electronic lead seal sensor has simple and practical installation onto the lower-mounted valve, and reliable use.
Description
Technical field
The utility model relates to sensor technical field, more particularly, relates to a kind of electronic lead sealing sensor and a kind of dress valve down.
Background technology
Current, along with the popularization of oil gas recovery scheme, oil gas warehousing and transportation facilities and adaptive following dress valve thereof thereupon large scale investment to market, the valve passage that the described valve of dress down oil product flows out from warehousing and transportation facilities.
In the oil storage and transportation process, illegally to steal oil product and happen occasionally, losing of oil product causes enormous economic loss, and the monitoring of adorning valve is down become one of the illegal main means that run off of oil product that prevent.
Yet traditional mechanical lead sealing and existing electronic lead sealing technology all do not have to propose good solution at the monitoring problem of adorning valve down.
The utility model content
In view of this, the utility model provides a kind of electronic lead sealing sensor and a kind of dress valve down, when being implemented in that the dress valve moves described valve rod under the illegal unlatching, described electronic lead sealing sensor cooperates the magnetic element that is installed on the valve rod to produce alerting signal, prevents that effectively oil product from stealing the generation of behavior.
A kind of electronic lead sealing sensor, be used for dress valve down, comprise: the universal driving shaft that is connected with the valve rod of described down dress valve, be located at a plurality of magnetic elements on the described universal driving shaft and be fixed in the described testing circuit of adorning down in the valve chamber, described testing circuit is located at position, described magnetic element opposite, and wherein testing circuit comprises electronic probe, converting unit and output unit:
When valve rod was in normal station, a plurality of magnetic elements were symmetrically distributed in the both sides of position, described electronic probe opposite, and described electronic probe is used for, and induction drives the variation of described magnetic element and electronic probe relative position by displacement of valve rod and the flux change that causes;
Described converting unit is used for, and each flux change amount of the same time internal induction of described electronic probe is converted to the electric signal of the default variable quantity variation of basis;
Described output unit is used for, and each described electric signal is relatively calculated the back form the output of warning trigger pip.
The dress valve displacement of valve rod described magnetic element that links under the utilization of described electronic lead sealing sensor, and change with the relative position of electronic probe, cause the variation of the magnetic flux of the described magnetic element that electronic probe is responded to, be converted to electric signal by the flux change amount, again described electric signal is relatively calculated as warning trigger pip output, obtained to prevent by move dress valve valve rod down steal oil product technique effect.
Preferably, described magnetic element is specially two, be located at the both sides of position, described electronic probe opposite respectively, described converting unit is converted to the electric signal that the default variable quantity of two bases changes with described electronic probe according to changing the flux change amount of responding to the magnetic element relative position, and described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.
Described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.Magnetic element is set to a plurality of, can be respectively monitoring obtains a plurality of electric signal and carries out average computation in the electronic probe both sides, record more accurate value, and two magnetic elements are as preferred, it is brief relatively to reach the testing circuit structure, the effect that reaction velocity is accelerated relatively.
Preferably, described electric signal is a voltage signal, and described converting unit is converted to first voltage signal higher than predeterminated voltage value with the described magnetic flux of responding near an end of magnetic element; Simultaneously, will be converted to second voltage signal lower than predeterminated voltage value away from a magnetic flux that end is responded to of magnetic element, described output unit relatively calculates first voltage signal and second voltage signal and forms voltage difference and export as the warning trigger pip.Described electric signal adopt voltage signal or current signal or other electric signal all can, the utility model utility model adopts the embodiment of voltage signal.
Preferably, described electronic lead sealing sensor also comprises the differential compensation unit, is used for the influence of factors such as compensate for temperature drift and magnetic weaken to described electronic lead sealing sensor.
Preferably, because the cost of magnet is lower in the magnetic element, magnetic stability, magnetic element is specially magnet.
Preferably, the described valve rod and the universal driving shaft of dress valve down are rigidly connected by screw.
The utility model discloses a kind of dress valve down, valve inner is equipped with the electronic lead sealing sensor, described electronic lead sealing sensor comprises: the universal driving shaft that is connected with the valve rod of described down dress valve, be located at a plurality of magnetic elements on the described universal driving shaft and be fixed in the described testing circuit of adorning down in the valve chamber, described testing circuit is located at position, described magnetic element opposite, and wherein testing circuit comprises electronic probe, converting unit and output unit:
When valve rod was in normal station, a plurality of magnetic elements were symmetrically distributed in the both sides of position, described electronic probe opposite, and described electronic probe is used for, and induction drives the variation of described magnetic element and electronic probe relative position by displacement of valve rod and the flux change that causes;
Described converting unit is used for, and each flux change amount of the same time internal induction of described electronic probe is converted to the electric signal of the default variable quantity variation of basis;
Described output unit is used for, and each described electric signal is relatively calculated the back form the output of warning trigger pip.
Above-mentioned electronic lead sealing sensor is located at described dress valve inside down: the sensor detection circuit part directly is fixed on down dress valve inside; Magnetic element places on the universal driving shaft, and described universal driving shaft is connected with following dress valve valve rod; Thereby total arrangement has been realized the integrated installation forming of time dress valve and sensor, has not only realized the monitoring displacement of valve rod, prevents the purpose that oil product is lost, and sensor has also reached difficult by the effect of unauthorized theft owing to be located at down dress valve inside.
Preferably, described magnetic element is specially two, be located at the both sides of position, described electronic probe opposite respectively, described converting unit is converted to the electric signal that the default variable quantity of two bases changes with described electronic probe according to changing the flux change amount of responding to the magnetic element relative position, and described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.
Described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.
Preferably, described electronic lead sealing sensor, described electric signal are voltage signal, and described converting unit is converted to first voltage signal higher than predeterminated voltage value with the described magnetic flux of responding near an end of magnetic element; Simultaneously, will be converted to second voltage signal lower than predeterminated voltage value away from a magnetic flux that end is responded to of magnetic element, described output unit relatively calculates first voltage signal and second voltage signal and forms voltage difference and export as the warning trigger pip.
From above-mentioned technical scheme as can be seen, the testing circuit of the disclosed electronic lead sealing sensor of the utility model embodiment setting cooperates the magnetic element that is installed on the sensor universal driving shaft, utilize the link relative position of described magnetic element and electronic probe of displacement of valve rod to change, and then cause the variation of magnetic flux of the described magnetic element of electronic probe induction, being converted to electric signal by the flux change amount exports as the warning trigger pip, effectively prevent by moving the effect that following dress valve valve rod is stolen oil product thereby played, and, described electronic probe is quick on the draw, can respond to flux change fast, detect the micro-displacement of valve rod, reached the accuracy of detection height, the effect that the reaction time is short; In addition, described electronic lead sealing sensor versatility height, can with the multiple down adaptive use of dress valve; Simultaneously, the invention also discloses the following dress valve that described electronic lead sealing sensor is installed, described electronic lead sealing sensor is located at described dress valve inside down: the sensor detection circuit part directly is fixed on down dress valve inside; Magnetic element places on the universal driving shaft, and described universal driving shaft is connected with valve rod; Thereby total arrangement has been realized the integrated molding of time dress valve and sensor, not only realized the monitoring displacement of valve rod, prevent the purpose that oil product is lost, and sensor has also reached difficult by the effect of unauthorized theft owing to be located at down dress valve inside, in addition, described electronic lead sealing sensor is simple in the installation of adorning on the valve down, and uses reliable.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 a is the external structure synoptic diagram of the disclosed a kind of electronic lead sealing sensor of the utility model embodiment;
Fig. 1 b is the external structure synoptic diagram after the disclosed a kind of electronic lead sealing sensor magnetic element of the utility model embodiment moves
Fig. 2 is the disclosed a kind of electronic lead sealing sensor detection circuit structural representation of the utility model embodiment;
Fig. 3 is the disclosed a kind of structure cut-open view of dress valve down of the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
The utility model provides a kind of electronic lead sealing sensor and a kind of dress valve down, when being implemented in that the dress valve moves described valve rod under the illegal unlatching, described electronic lead sealing sensor cooperates the magnetic element that is installed on the valve rod to produce alerting signal, effectively prevents the generation of oil product pilferage behavior.
Fig. 1 a shows the external structure of the disclosed a kind of electronic lead sealing sensor of the utility model embodiment, comprise: the universal driving shaft 101 that the valve rod of described dress valve down connects, be located at a plurality of magnetic elements on the described universal driving shaft, indicate magnetic element 1031 and magnetic element 1032 among the figure and be fixed in the interior testing circuit 104 of the described valve chamber of dress down, Fig. 1 also shows and is used to connect described universal driving shaft 101 and the described screw 102 of dress valve valve rod down, and, the electronic probe 1041 of described testing circuit 104, Fig. 1 b shows the external structure after the disclosed a kind of electronic lead sealing sensor magnetic element of the utility model moves, Fig. 2 shows the disclosed a kind of electronic lead sealing sensor detection circuit structure of the utility model embodiment, in conjunction with Fig. 1 a, Fig. 1 b and Fig. 2 describe:
Described testing circuit 104 is located at position, described magnetic element opposite, and wherein testing circuit comprises electronic probe 1041, converting unit 202 and output unit 203:
When valve rod is in normal station, a plurality of magnetic elements are symmetrically distributed in the both sides of position, described electronic probe opposite, preferred two of present embodiment, as shown in Figure 1a, the both sides of position, described electronic probe 1041 opposite are respectively equipped with one, described electronic probe 1041 is used for, and induction drives the variation of described magnetic element and electronic probe 1041 relative positions by displacement of valve rod and the flux change that causes, and present embodiment selects for use two Hall switch as the flux change of electronic probe with the induced magnetism element.
Described converting unit 202 is used for, each flux change amount of described electronic probe 1041 same time internal inductions is converted to the electric signal that changes according to default variable quantity, the change in electric amount of described default variable quantity for being directly proportional with the magnetic element displacement, specific to described embodiment, described electric signal is specially voltage signal;
When universal driving shaft 101 drives the valve rod that links to each other, described magnetic element also produces displacement thereupon, the relative position of described electronic probe and described two magnetic elements changes, illustrate, after Fig. 1 b magnetic element generation displacement, the position of described electronic probe 1041 and one of them magnetic element 1032 is with respect to normal station, be that the position shown in Fig. 1 a is more approaching, and with the position of another magnetic element 1031 with respect to normal station more away from, described converting unit 202 is converted to first voltage signal higher than predeterminated voltage value with the described magnetic flux of responding near an end of magnetic element 1032; Simultaneously, will be converted to second voltage signal lower away from a magnetic flux that end is responded to of magnetic element 1031 than predeterminated voltage value.
Described output unit 203 relatively calculates first voltage signal and second voltage signal and forms voltage difference and export as the warning trigger pip, present embodiment is selected miniature central processing unit for use, and promptly single-chip microcomputer is as the output unit deal with data and export described warning trigger pip.
Fig. 2 also shows the differential compensation unit 204 in the described electronic lead sealing sensor, is used for the influence of factors such as compensate for temperature drift and magnetic weaken to described electronic lead sealing sensor.
It should be explicitly made clear at this point that when described electronic lead sealing sensor device of the same race is a plurality of, only indicate one in the drawings to show explanation, other same parts indicate no longer one by one and give unnecessary details.
As can be seen from the above embodiments, the dress valve displacement of valve rod described magnetic element that links under the utilization of described electronic lead sealing sensor, and change with the relative position of electronic probe, cause the variation of the magnetic flux of the described magnetic element that electronic probe is responded to, be converted to electric signal by the flux change amount, again described electric signal is relatively calculated as the warning trigger pip and export, obtained to prevent by move dress valve valve rod down steal oil product technique effect, and described electronic probe is quick on the draw, can respond to flux change fast, detect the micro-displacement of valve rod, in case mobile valve rod surpasses 0.2mm, just can obtain alarm by output unit, therefore, described electronic lead sealing sensor has reached the accuracy of detection height, the effect that the reaction time is short; In addition, described electronic lead sealing sensor versatility height, can with the multiple down adaptive use of dress valve.
Fig. 3 shows the disclosed a kind of sectional structure of dress valve down of the utility model embodiment, as shown in the figure, described dress valve 1 down, be used with the electronic lead sealing sensor, described electronic lead sealing sensor comprises: the universal driving shaft 3 that is connected with the described valve rod 2 of dress valve down, be located at a plurality of magnetic elements 5 on the described universal driving shaft 3 and be fixed in the interior testing circuit 6 of described dress valve 1 cavity down, described testing circuit 6 is located at position, described magnetic element opposite, wherein testing circuit comprises electronic probe, converting unit and output unit, the function of described each unit and implementation all can repeat no more with reference in conjunction with Fig. 2 and corresponding explanation thereof herein.
It should be explicitly made clear at this point that Fig. 3 also shows the lead 7 that described testing circuit is used for the output alarm trigger pip; And, being used to connect described universal driving shaft 3 and the described screw 4 of dress valve valve rod 2 down, the described valve rod and the universal driving shaft of dress valve down are rigidly connected by screw.
Need to prove that among the embodiment of described electronic lead sealing sensor and described dress valve down, described magnetic element is specially magnet, select for use magnet as preferred, the cost that is based on magnet is lower, advantages such as magnetic stability.
By above embodiment as seen, above-mentioned electronic lead sealing sensor is located at described dress valve inside down: the sensor detection circuit part directly is fixed on down dress valve inside; Magnetic element places on the universal driving shaft, and described universal driving shaft is connected with following dress valve valve rod; Thereby total arrangement has been realized the integrated installation forming of time dress valve and sensor, has not only realized the monitoring displacement of valve rod, prevents the purpose that oil product is lost, and sensor has also reached difficult by the effect of unauthorized theft owing to be located at down dress valve inside.
Each embodiment adopts the mode of going forward one by one to describe in this instructions, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined herein General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. electronic lead sealing sensor, it is characterized in that, be used for dress valve down, comprise: the universal driving shaft that is connected with the valve rod of described down dress valve, be located at a plurality of magnetic elements on the described universal driving shaft and be fixed in the described testing circuit of adorning down in the valve chamber, described testing circuit is located at position, described magnetic element opposite, and wherein testing circuit comprises electronic probe, converting unit and output unit:
When valve rod was in normal station, a plurality of magnetic elements were symmetrically distributed in the both sides of position, described electronic probe opposite, and described electronic probe is used for, and induction drives the variation of described magnetic element and electronic probe relative position by displacement of valve rod and the flux change that causes;
Described converting unit is used for, and each flux change amount of the same time internal induction of described electronic probe is converted to the electric signal of the default variable quantity variation of basis;
Described output unit is used for, and described electric signal is relatively calculated the back form the output of warning trigger pip.
2. electronic lead sealing sensor according to claim 1, it is characterized in that, described magnetic element is specially two, be located at the both sides of position, described electronic probe opposite respectively, described converting unit is converted to the electric signal that the default variable quantity of two bases changes with described electronic probe according to changing the flux change amount of responding to the magnetic element relative position, and described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.
3. electronic lead sealing sensor according to claim 2 is characterized in that, described electric signal is a voltage signal, and described converting unit is converted to first voltage signal higher than predeterminated voltage value with the described magnetic flux of responding near an end of magnetic element; Simultaneously, will be converted to second voltage signal lower than predeterminated voltage value away from a magnetic flux that end is responded to of magnetic element, described output unit relatively calculates first voltage signal and second voltage signal and forms voltage difference and export as the warning trigger pip.
4. electronic lead sealing sensor according to claim 1 is characterized in that, also comprises the differential compensation unit, is used for the influence of factors such as sensor component compensate for temperature drift and magnetic element magnetic weaken to described electronic lead sealing sensor.
5. electronic lead sealing sensor according to claim 1 is characterized in that described magnetic element is specially magnet.
6. electronic lead sealing sensor according to claim 1 is characterized in that, the described valve rod and the universal driving shaft of dress valve down are rigidly connected by screw.
7. following dress valve, it is characterized in that, valve inner is equipped with the electronic lead sealing sensor, described electronic lead sealing sensor comprises: the universal driving shaft that is connected with the valve rod of described down dress valve, be located at a plurality of magnetic elements on the described universal driving shaft and be fixed in the described testing circuit of adorning down in the valve chamber, described testing circuit is located at position, described magnetic element opposite, and wherein testing circuit comprises electronic probe, converting unit and output unit:
When valve rod was in normal station, a plurality of magnetic elements were symmetrically distributed in the both sides of position, described electronic probe opposite, and described electronic probe is used for, and induction drives the variation of described magnetic element and electronic probe relative position by displacement of valve rod and the flux change that causes;
Described converting unit is used for, and each flux change amount of the same time internal induction of described electronic probe is converted to the electric signal of the default variable quantity variation of basis;
Described output unit is used for, and described electric signal is relatively calculated the back form the output of warning trigger pip.
8. electronic lead sealing sensor according to claim 7, it is characterized in that, described magnetic element is specially two, be located at the both sides of position, described electronic probe opposite respectively, described converting unit is converted to the electric signal that the default variable quantity of two bases changes with described electronic probe according to changing the flux change amount of responding to the magnetic element relative position, and described output unit relatively calculates described two electric signal and forms the output of warning trigger pip.
9. electronic lead sealing sensor according to claim 8 is characterized in that, described electric signal is a voltage signal, and described converting unit is converted to first voltage signal higher than predeterminated voltage value with the described magnetic flux of responding near an end of magnetic element; Simultaneously, will be converted to second voltage signal lower than predeterminated voltage value away from a magnetic flux that end is responded to of magnetic element, described output unit relatively calculates first voltage signal and second voltage signal and forms voltage difference and export as the warning trigger pip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920279722XU CN201540119U (en) | 2009-11-19 | 2009-11-19 | Electronic lead seal sensor and lower-mounted valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920279722XU CN201540119U (en) | 2009-11-19 | 2009-11-19 | Electronic lead seal sensor and lower-mounted valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201540119U true CN201540119U (en) | 2010-08-04 |
Family
ID=42591575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920279722XU Expired - Lifetime CN201540119U (en) | 2009-11-19 | 2009-11-19 | Electronic lead seal sensor and lower-mounted valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201540119U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889908A (en) * | 2011-07-19 | 2013-01-23 | 工量国际企业股份有限公司 | Magnetic disturbance-prevention turn-off system of magnetic induction fluid metering device and operation method thereof |
-
2009
- 2009-11-19 CN CN200920279722XU patent/CN201540119U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889908A (en) * | 2011-07-19 | 2013-01-23 | 工量国际企业股份有限公司 | Magnetic disturbance-prevention turn-off system of magnetic induction fluid metering device and operation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203163780U (en) | Bi-directional detection sensor assembly for intelligent water meter | |
| WO2009151889A3 (en) | Method for enabling monitoring of power consumption | |
| WO2008094809A3 (en) | Magnetic speed, direction, and/or movement extent sensor | |
| CN201540119U (en) | Electronic lead seal sensor and lower-mounted valve | |
| CN201259505Y (en) | Accurate wheel speed sensor | |
| CN202188930U (en) | Novel electric steering torque device | |
| CN204536397U (en) | Current sensing means | |
| CN201740814U (en) | Magnetic detection alarm electric energy meter | |
| CN202196489U (en) | Warning device for detecting manhole cover damage | |
| CN201740550U (en) | Intelligent flowmeter with magnetic sensor with giant Hall effect | |
| CN204422133U (en) | A kind of self-correcting blast detection system | |
| WO2009051069A1 (en) | Gmr sensor | |
| CN212111470U (en) | Speed sensor | |
| CN101298253B (en) | Wheel sensor | |
| CN204695101U (en) | A kind of intelligent carriage of the line data-logging for intelligent substation | |
| CN204374293U (en) | A kind of current detection module of frequency converter | |
| CN1387317A (en) | Proximity Hall switch | |
| CN102679859B (en) | Displacement sensor and method for measuring displacement by using same | |
| CN203310522U (en) | High-voltage cabinet contact high-temperature sensor node apparatus with intelligent module | |
| CN105891543A (en) | Sensor system and alerting unit | |
| CN105807086B (en) | Intelligent sensor | |
| CN206114154U (en) | Press punching press tonnage monitoring devices | |
| CN201107042Y (en) | Position detection circuit for permanent magnetism synchronous machine without sensor driver | |
| CN205427015U (en) | Three routes current detection sensor | |
| CN204575138U (en) | A kind of motor parameter-detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100804 |
|
| CX01 | Expiry of patent term |