CN202255995U - Semi-automatic continuous single-particle sampler - Google Patents
Semi-automatic continuous single-particle sampler Download PDFInfo
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- CN202255995U CN202255995U CN2011203846894U CN201120384689U CN202255995U CN 202255995 U CN202255995 U CN 202255995U CN 2011203846894 U CN2011203846894 U CN 2011203846894U CN 201120384689 U CN201120384689 U CN 201120384689U CN 202255995 U CN202255995 U CN 202255995U
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- rotating disk
- semi
- holding piece
- automatic continuous
- accelerating cavity
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Abstract
The utility model relates to a semi-automatic continuous single-particle sampler, belonging to the technical field of atmosphere environmental science and environmental monitoring. The semi-automatic continuous single-particle sampler comprises a shell, an air inlet pipe and an air pump, the air pump is communicated with an air outlet pipe, a funnel-shaped accelerating cavity, sample collectors and an airflow guiding device are arranged in the shell, the upper end of the funnel-shaped accelerating cavity is connected with the air inlet pipe in a sealing manner, the lower end of the airflow guiding device is connected with the air outlet pipe in a sealing manner, the plurality of sample collectors are uniformly arranged into a ring on a turntable, the turntable rotates by taking a supporting column as a central shaft, and the sample collectors distributed on the turntable are arranged between the funnel-shaped accelerating cavity and the airflow guiding device in an alternate communication manner. The semi-automatic continuous single-particle sampler disclosed by the utility model can be used for continuously collecting a plurality of different samples without changing a sample film in the middle, can conveniently carry out continuous sampling or carry out sampling in a selected time interval; therefore the semi-automatic continuous single-particle sampler is suitable for various sampling situations.
Description
Technical field
The utility model relates to a kind of atmospheric sampling device, and especially a kind of sampling thief that can carry out semi-automatic continuous sampling operation belongs to atmospheric environment science, environmental monitoring technology field.
Background technology
At present, normally used atmosphere individual particle sampler system comprises three parts: sampling head, flowmeter and aspiration pump.Aspiration pump is extracted into air in the gatherer sampling head, and sampling head is caught gasoloid in the air-flow on filter membrane then.But traditional sampling apparatus once can only be gathered a sample, when needs are gathered a plurality of sample; Need stop midway, repeatedly change the individual particle filter membrane in the sample collection device, change the individual particle filter membrane and need carry out and time-consuming longer indoor; Existing individual particle sampling thief can not carry out continuous sampling; Especially in the aircraft cabin with work high above the ground particular surroundings such as manned airship under, the difficulty of changing the individual particle filter membrane is bigger, directly influences follow-up sampling work.
Summary of the invention
Deficiency to prior art; The utility model provides a kind of semi-automatic continuous individual particle sampling thief, and this sampling thief once can a plurality of samples of continuous acquisition, do not need to change sampling film midway; Can carry out continuously easily or the select time section sample, be applicable to multiple sampling occasion.
The utility model is realized through following technical scheme:
A kind of semi-automatic continuous individual particle sampling thief comprises that inside is provided with the housing of support column, draft tube, air pump, flowmeter and escape pipe; In housing, be provided with sampling head, described sampling head comprises that infundibulate accelerating cavity, the gentle conductance of sample collection device go out device, and the connection of sample collection device is arranged on the gentle conductance of infundibulate accelerating cavity and goes out between the device; The upper end and the draft tube of said infundibulate accelerating cavity are tightly connected, and the lower end and the escape pipe of said air-flow let-off gear(stand) are tightly connected, and escape pipe is connected with air pump; On the pipeline of draft tube or escape pipe, flowmeter is installed; Described sample collection device comprises sample stage and acquisition cavity, and sample stage is arranged in the acquisition cavity, and the infundibulate accelerating cavity is connected through the accelerating cavity cutting hole with acquisition cavity; Accelerating cavity cutting hole and sample stage are relative; The upper surface of sample stage is provided with sampling film, in the bottom of acquisition cavity the air-flow leadout hole is arranged, and the air-flow leadout hole is connected with the air-flow let-off gear(stand); The quantity of described sample collection device is a plurality of, evenly is circular arrangement on rotating disk, and described rotating disk is that central shaft rotates with the support column, the sample collection device that distributes on the rotating disk alternately is communicated be arranged on the gentle conductance of infundibulate accelerating cavity to go out between the device.
Be provided with device for positioning and securing in described rotating disk upper fixed; Device for positioning and securing comprises shell, spring and steel ball, and an end of spring is connected with enclosure, and the other end of spring is connected with steel ball; Shell is provided with the circular hole of diameter less than diameter of the steel ball, and steel ball partly is embedded in the circular hole; Described rotating disk is provided with a plurality of locating slots; Evenly be circular arrangement on rotating disk; Locating slot is arranged the external diameter be annular and is arranged the internal diameter that is annular less than the sample collection device, locating slot respectively with rotating disk on the sample collection device radially relative, the quantity of locating slot is identical with the quantity of sample collection device; Rotate rotating disk, the steel ball in the device for positioning and securing tumbles in the rotating disk locating slot.The advantage of this kind design: steel ball partly is embedded in the circular hole of device for positioning and securing; Device for positioning and securing is fixed; Stir rotating disk clockwise or counterclockwise; Steel ball rolls out in the locating slot and drops in the adjacent locating slot, and rotating disk will be fixed, and the sample collection device just in time was in the gentle conductance of infundibulate accelerating cavity and went out between the device this moment; Simultaneously, the fixing steel ball of device for positioning and securing has certain pressure to rotating disk, prevents that steel ball from skidding off in locating slot.
The center of described device for positioning and securing and rotating disk is provided with through hole, supplies support column to pass, and device for positioning and securing is fixedly connected with support column; Described steel ball is 2, partly is embedded in the two ends of device for positioning and securing shell lower surface respectively; Locating slot is semicircle locating slot.
Side at rotating disk is provided with clamping device, comprises E shape bracing frame, lever handle, back-up block, goes up holding piece and following holding piece, and described lever handle is fixedly connected with back-up block, and described E shape bracing frame comprises upper boom, king-rod, lower beam and montant; The king-rod of the junction of lever handle and back-up block and E shape frame flexibly connects, and lever handle runs through housing and extends to outside the sampling thief housing; Described upward holding piece and following holding piece are set in parallel in the two ends of back-up block; One end of last holding piece is movably connected on the montant of E shape bracing frame; The other end is arranged on infundibulate accelerating cavity top and is connected on the draft tube; One end of following holding piece is movably connected on the montant of E shape bracing frame, and the other end is arranged on air-flow let-off gear(stand) below and is connected on the escape pipe.The advantage of this kind design: before pressing lever handle, back-up block is obliquely installed between upper and lower holding piece, and back-up block and upper and lower holding piece are in a certain angle; When having gathered a sample and need rotate rotating disk, press the lever handle of clamping device, it is vertical that lever handle is tending towards; This moment, the distance of the upper and lower holding piece other end was maximum, went out device and lifted thereby upper and lower holding piece can drive the gentle conductance of accelerating cavity, rotated rotating disk; Next sample collecting device goes out device with the gentle conductance of accelerating cavity and is connected; The lever handle homing, the sample collecting device will retighten and seal, and just can continue next sample collecting; Need not to change sampling film midway, convenient and swift.
Preferably, back-up block is arranged on the end near E shape bracing frame montant, and the length of lever handle is greater than the length of back-up block.
Draft tube runs through the upper boom of E shape frame and an end of last holding piece links to each other with the upper end of infundibulate accelerating cavity, and escape pipe runs through lower beam and an end of following holding piece and the lower ends of air-flow let-off gear(stand) of E shape frame.
The described holding piece of going up is provided with pad and spring, and spring is arranged between the upper boom and last holding piece of E shape frame, and is enclosed within on the draft tube; Described holding piece down is provided with pad and spring, and spring is arranged between the lower beam and following holding piece of E shape frame, and is enclosed within on the escape pipe.
Be evenly distributed with the collector hole of circular array on the described rotating disk, the sample collection device is installed in the collector hole, and is preferred, and the quantity in sampling thief hole is 8-12.
Described housing bottom is fixed with base, and the base inner hollow is provided with, and air pump is arranged in the base, and air pump is by power drives, and preferred power supply is No. 5 batteries of four joints, and the pilot lamp of air pump is positioned at base top.Conveniently check.
Described housing comprises back cover and transparent housing, and transparent housing is provided with the slotted hole that adapts with the rotating disk radian.This slotted hole is convenient to outside housing, manually rotate rotating disk, and transparent housing is convenient to observe sampling and inner structure, and it is inner to prevent also that simultaneously air pollutants from getting into sampling thief, avoids the influence to sampling.
Characteristics of the utility model and excellent results:
1, the utility model is provided with rotating rotating disk between accelerating cavity and air-flow let-off gear(stand), and annular row is shown the sample collection device on the rotating disk, only needs to rotate rotating disk and just can carry out next one sampling; When needs carry out continuous sampling, can be in advance implant blank sampling film on a plurality of sample stage, under manually-operated condition indoor; The a plurality of samples of ability continuous acquisition; And do not need to change sampling film midway,, be applicable to multiple sampling occasion for sampling work provides great convenience.
2, a plurality of sample collection device alternating samplings not only increase the sample collection kind, and promote collecting efficiency.
3, the utility model is provided with clamping device in a side of rotating disk; The last holding piece of clamping device is arranged on the top of accelerating cavity; Following holding piece is arranged on the below of air-flow let-off gear(stand), utilizes lever principle, and clamping device can conveniently will speed up the gentle conductance in chamber and go out device and lift; Convenience is provided, time saving and energy saving, economical with materials for rotating rotating disk.
4, the utility model also is provided with the device for positioning and securing of half embedding steel ball above rotating disk, and device for positioning and securing is fixed, and sample collection device and locating slot on the rotating disk are radially relative; Rotate rotating disk; Adjacent sample collection device moves to the gentle conductance of infundibulate accelerating cavity and goes out between the device, and steel ball shifts out in the locating slot and drops in the adjacent locating slot, and this kind structure can will speed up the chamber, the gentle conductance of sample collection device goes out device and is fixed on the center; Improved the accuracy of sampling; Locating slot is provided with semicircular in shape simultaneously, makes dial rotation more flexible, and is laborsaving.
5, the utility model is of many uses, small investment, and equipment is simple, and it is convenient to use, and can be used for daily sampling, aerosol science research sampling, and sample etc. is collected in work high above the ground.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the structural representation of the utility model turntable;
Fig. 3 is the structural representation of sample collection device in the utility model;
Fig. 4 is the structural representation of accelerating cavity in the utility model;
Fig. 5 is the structural representation of air-flow let-off gear(stand) in the utility model;
Fig. 6 is the longitudinal sectional view of sampling head in the utility model;
Fig. 7 is the one-piece construction synoptic diagram of sampling head in the utility model;
Fig. 8 is the structural representation of clamping device in the utility model;
Wherein, 1, sample collection device; 2, rotating disk; 3, device for positioning and securing; 4, accelerating cavity; 5, draft tube; 6, escape pipe; 7, E shape bracing frame; 8, flowmeter; 9, pilot lamp; 10, base; 11, housing; 12, air-flow let-off gear(stand); 13, locating slot; 14, the through hole that supplies support column to pass; 15, sample stage; 16, air-flow leadout hole; 17, acquisition cavity; 18, accelerating cavity cutting hole; 19, the bottom of accelerating cavity; 21, lever handle; 22, back-up block; 23, go up holding piece; 24, following holding piece; 25, spring; 26, upper boom; 27, king-rod; 28, lower beam; 29, support column.
Embodiment
Below in conjunction with embodiment and accompanying drawing the utility model is done explanation at length, but be not limited thereto.
A kind of semi-automatic continuous individual particle sampling thief, structure is as shown in Figure 1, comprises that inside is provided with the housing 11 of support column, draft tube 5, air pump, power supply, flowmeter 8 and escape pipe 6; The bottom of housing 11 is fixed with base 10, and base 10 inside are the hollow setting, and air pump and power supply are arranged in the base 10, and air pump is by power drives, and preferred, power supply is No. 5 batteries.Base 10 adopts metal material; The pilot lamp 9 of air pump is arranged on base 10 tops, in housing 11, is provided with sampling head, and described sampling head comprises that infundibulate accelerating cavity 4, sample collection device 1 gentle conductance go out device 12; The upper end of infundibulate accelerating cavity 4 and draft tube 5 are tightly connected; 1 connection of sample collection device is arranged on infundibulate accelerating cavity 4 gentle conductances and goes out between the device 12, and the lower end of air-flow let-off gear(stand) 12 and escape pipe 6 are tightly connected, and escape pipe 6 is connected with air pump; On the pipeline of draft tube 5 or escape pipe 6, flowmeter 8 is installed; Sample collection device 1 is arranged on the rotating disk 2, and rotating disk 2 is that central shaft rotates with support column 29, and rotating disk 2 rotates sample collection device 1 alternately to be communicated be arranged on infundibulate accelerating cavity 4 gentle conductances and goes out between the device 12.Housing 11 comprises back cover and transparent housing, and transparent housing is provided with the slotted hole of being convenient to rotate rotating disk 2.
Be evenly distributed with the collector hole of circular array on the rotating disk 2, sample collection device 1 is installed in the collector hole, and preferred, the quantity in sampling thief hole is 10, and the quantity of sample collection device is 10, and is as shown in Figure 2.
As shown in Figure 3, sample collection device 1 comprises sample stage 15 and acquisition cavity 17, and sample stage 15 is arranged in the acquisition cavity 17; The infundibulate accelerating cavity that structure is as shown in Figure 4, bottom 19 diameters of accelerating cavity are less than the internal diameter of acquisition cavity 17, and the bottom 19 of accelerating cavity is embedded in the acquisition cavity 17; Accelerating cavity 4 is connected through accelerating cavity cutting hole 18 with acquisition cavity 17; Accelerating cavity cutting hole 18 is relative with sample stage 15, and the upper surface of sample stage 15 is provided with sampling film, in the bottom of acquisition cavity 17 air-flow leadout hole 16 is arranged; Preferably; Air-flow leadout hole 16 is 4, and air-flow leadout hole 16 is connected with air-flow let-off gear(stand) 12, and accelerating cavity 4, sample collection device 1 gentle conductance go out syndeton such as Fig. 6, shown in Figure 7 between the device 12.
As shown in Figure 2; Rotating disk 2 is provided with locating slot 13; Locating slot 13 semicirculars in shape evenly are circular arrangement on rotating disk 2, and locating slot 13 is arranged the external diameter that is annular and arranged the internal diameter that is annular less than sample collection device 1; Locating slot 1 respectively with rotating disk 2 on the collector aperture to relatively, the quantity of locating slot is 10.Above rotating disk 2, be provided with device for positioning and securing 3, as shown in Figure 1.The center of device for positioning and securing 3 and rotating disk 2 is provided with through hole, supplies support column 29 to pass, and device for positioning and securing 3 is fixedly connected with support column 29; Device for positioning and securing 3 comprises shell, spring and steel ball, and an end of spring is connected with enclosure, and the other end of spring is connected with steel ball; Shell is provided with the circular hole of diameter less than diameter of the steel ball; Steel ball partly is embedded in the circular hole, and steel ball is located at an end of device for positioning and securing 3 shell lower surfaces, rotates rotating disk 2; Steel ball tumbles in rotating disk locating slot 13; Steel ball shifts out in the locating slot and drops in the adjacent locating slot, and rotating disk 2 will be fixed, and this moment, the sample collection device just in time was communicated with at infundibulate accelerating cavity 4 gentle conductances to go out between the device 12; Simultaneously, device for positioning and securing 3 fixing steel balls have certain pressure to rotating disk 2, prevent that steel ball from skidding off in locating slot 13.
Side at rotating disk 2 is provided with clamping device.As shown in Figure 8; Clamping device comprises E shape bracing frame 7, lever handle 21, back-up block 22, goes up holding piece 23 and following holding piece 24; Lever handle 21 is fixedly connected with back-up block 22, and is preferred, lever handle 21 and 22 vertical connections of back-up block; Last holding piece 23 and following holding piece 24 are set in parallel in the two ends of back-up block 22, and described E shape bracing frame 7 comprises upper boom 26, king-rod 27, lower beam 28 and montant; The junction of lever handle 21 and back-up block 22 and the king-rod of E shape bracing frame 7 27 flexibly connect, and lever handle 21 runs through housing and extends to the sampling thief housing.Preferably, back-up block 22 is arranged on the end near E shape bracing frame 7 montants, and the length of lever handle 21 is greater than the length of back-up block 22.
One end of last holding piece 23 is movably connected on the montant of E shape bracing frame 7; The other end is arranged on the top of infundibulate accelerating cavity 4; Draft tube 5 runs through the upper boom 26 of E shape bracing frame 7 and the other end of last holding piece 23 links to each other with the upper end of infundibulate accelerating cavity 4; One end of following holding piece 24 is movably connected on the montant of E shape bracing frame 7; The other end is arranged on the below of air-flow let-off gear(stand) 12, and escape pipe 6 runs through lower beam 28 and the other end of following holding piece 24 and the lower ends of air-flow let-off gear(stand) 12 of E shape bracing frame 7.
Above last holding piece 23, be provided with pad and spring 25, spring 25 is arranged between the upper boom 26 and last holding piece 23 of E shape frame, and is enclosed within on the draft tube 5; Be provided with pad and spring below the holding piece 24 down, spring is arranged between the lower beam 28 and following holding piece 24 of E shape frame, and is enclosed within on the escape pipe 6.
Embodiment 2
A kind of semi-automatic continuous individual particle sampling thief, structure such as embodiment 1 are said, and difference is:
The quantity in sampling thief hole is 12, and the quantity of locating slot is identical with the quantity in sampling thief hole, and the quantity of locating slot is 12, and steel ball partly is embedded in the two ends of device for positioning and securing shell lower surface.
Claims (10)
1. a semi-automatic continuous individual particle sampling thief comprises that inside is provided with the housing of support column, draft tube, air pump, flowmeter and escape pipe; In housing, be provided with sampling head, described sampling head comprises that infundibulate accelerating cavity, the gentle conductance of sample collection device go out device, and the connection of sample collection device is arranged on the gentle conductance of infundibulate accelerating cavity and goes out between the device; The upper end and the draft tube of said infundibulate accelerating cavity are tightly connected, and the lower end and the escape pipe of said air-flow let-off gear(stand) are tightly connected, and escape pipe is connected with air pump; On the pipeline of draft tube or escape pipe, flowmeter is installed; It is characterized in that: described sample collection device comprises sample stage and acquisition cavity, and sample stage is arranged in the acquisition cavity, and the infundibulate accelerating cavity is connected through the accelerating cavity cutting hole with acquisition cavity; Accelerating cavity cutting hole and sample stage are relative; The upper surface of sample stage is provided with sampling film, in the bottom of acquisition cavity the air-flow leadout hole is arranged, and the air-flow leadout hole is connected with the air-flow let-off gear(stand); The quantity of described sample collection device is a plurality of, evenly is circular arrangement on rotating disk, and described rotating disk is that central shaft rotates with the support column, the sample collection device that distributes on the rotating disk alternately is communicated be arranged on the gentle conductance of infundibulate accelerating cavity to go out between the device.
2. a kind of semi-automatic continuous individual particle sampling thief according to claim 1; It is characterized in that: be provided with device for positioning and securing in described rotating disk upper fixed; Device for positioning and securing comprises shell, spring and steel ball, and an end of spring is connected with enclosure, and the other end of spring is connected with steel ball; Shell is provided with the circular hole of diameter less than diameter of the steel ball, and steel ball partly is embedded in the circular hole; Described rotating disk is provided with a plurality of locating slots; Evenly be circular arrangement on rotating disk; Locating slot is arranged the external diameter be annular and is arranged the internal diameter that is annular less than the sample collection device, locating slot respectively with rotating disk on the sample collection device radially relative, the quantity of locating slot is identical with the quantity of sample collection device; Rotate rotating disk, the steel ball in the device for positioning and securing tumbles in the rotating disk locating slot.
3. a kind of semi-automatic continuous individual particle sampling thief according to claim 2, it is characterized in that: the center of described device for positioning and securing and rotating disk is provided with through hole, supplies support column to pass, and device for positioning and securing is fixedly connected with support column; Described steel ball is 2, partly is embedded in the two ends of device for positioning and securing shell lower surface respectively; Locating slot is semicircle locating slot.
4. a kind of semi-automatic continuous individual particle sampling thief according to claim 1 and 2; It is characterized in that: the side at rotating disk is provided with clamping device; Comprise E shape bracing frame, lever handle, back-up block, go up holding piece and following holding piece; Described lever handle is fixedly connected with back-up block, and described E shape bracing frame comprises upper boom, king-rod, lower beam and montant; The king-rod of the junction of lever handle and back-up block and E shape frame flexibly connects, and lever handle runs through housing and extends to outside the sampling thief housing; Described upward holding piece and following holding piece are set in parallel in the two ends of back-up block; One end of last holding piece is movably connected on the montant of E shape bracing frame; The other end is arranged on infundibulate accelerating cavity top and is connected on the draft tube; One end of following holding piece is movably connected on the montant of E shape bracing frame, and the other end is arranged on air-flow let-off gear(stand) below and is connected on the escape pipe.
5. a kind of semi-automatic continuous individual particle sampling thief according to claim 4, it is characterized in that: back-up block is arranged on the end near E shape bracing frame montant, and the length of lever handle is greater than the length of back-up block.
6. a kind of semi-automatic continuous individual particle sampling thief according to claim 4; It is characterized in that: draft tube runs through the upper boom of E shape frame and an end of last holding piece links to each other with the upper end of infundibulate accelerating cavity, and escape pipe runs through lower beam and an end of following holding piece and the lower ends of air-flow let-off gear(stand) of E shape frame.
7. a kind of semi-automatic continuous individual particle sampling thief according to claim 6 is characterized in that: the described holding piece of going up is provided with pad and spring, and spring is arranged between the upper boom and last holding piece of E shape frame, and is enclosed within on the draft tube; Described holding piece down is provided with pad and spring, and spring is arranged between the lower beam and following holding piece of E shape frame, and is enclosed within on the escape pipe.
8. a kind of semi-automatic continuous individual particle sampling thief according to claim 1, it is characterized in that: be evenly distributed with the collector hole that is circular arrangement on the described rotating disk, the sample collection device is installed in the collector hole, and the quantity in sampling thief hole is 8-12.
9. a kind of semi-automatic continuous individual particle sampling thief according to claim 1; It is characterized in that: described housing bottom is fixed with base; The base inner hollow is provided with, and air pump is arranged in the base, and air pump is by power drives; Preferred power supply is No. 5 batteries of four joints, and the pilot lamp of air pump is positioned at base top.
10. a kind of semi-automatic continuous individual particle sampling thief according to claim 1, it is characterized in that: described housing comprises back cover and transparent housing, transparent housing is provided with the slotted hole that adapts with the rotating disk radian.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203846894U CN202255995U (en) | 2011-10-11 | 2011-10-11 | Semi-automatic continuous single-particle sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203846894U CN202255995U (en) | 2011-10-11 | 2011-10-11 | Semi-automatic continuous single-particle sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255995U true CN202255995U (en) | 2012-05-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203846894U Expired - Lifetime CN202255995U (en) | 2011-10-11 | 2011-10-11 | Semi-automatic continuous single-particle sampler |
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| Country | Link |
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| CN (1) | CN202255995U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445366A (en) * | 2011-10-11 | 2012-05-09 | 山东大学 | Semi-automatic continuous single particle sampling device |
-
2011
- 2011-10-11 CN CN2011203846894U patent/CN202255995U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445366A (en) * | 2011-10-11 | 2012-05-09 | 山东大学 | Semi-automatic continuous single particle sampling device |
| CN102445366B (en) * | 2011-10-11 | 2013-06-19 | 山东大学 | Semi-automatic continuous single particle sampling device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130619 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20120530 Effective date of abandoning: 20130619 |
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| RGAV | Abandon patent right to avoid regrant |