CN208488690U - A kind of confined chamber of volume adjustable - Google Patents
A kind of confined chamber of volume adjustable Download PDFInfo
- Publication number
- CN208488690U CN208488690U CN201821008168.7U CN201821008168U CN208488690U CN 208488690 U CN208488690 U CN 208488690U CN 201821008168 U CN201821008168 U CN 201821008168U CN 208488690 U CN208488690 U CN 208488690U
- Authority
- CN
- China
- Prior art keywords
- confined chamber
- elastic membrane
- volume
- confined
- chamber
- 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.)
- Withdrawn - After Issue
Links
Abstract
The utility model discloses a kind of confined chambers of volume adjustable, including confined chamber and gas compensation device, gas compensation device is arranged on one or more surfaces of confined chamber, wherein, gas compensation device includes orifice plate, pressing plate, driving device and elastic membrane, orifice plate is installed in any on one or more surfaces of confined chamber, elastic membrane is arranged on the lateral surface of corresponding orifice plate, and it can be with respect to confined chamber internal expansion or contraction, pressing plate is arranged on the lateral surface of corresponding elastic membrane, driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, elastic membrane is compressed with this to be in contact with orifice plate.The utility model structure is simple, pass through the setting of elastic membrane, when confined chamber internal temperature rises, inflation of elastic membrane, when the decline of confined chamber internal temperature, elastic membrane is shunk, and changes the volume inside confined chamber with this, so that closed chamber internal volume is changed with the change of test temperature, the precision of detection is effectively improved.
Description
Technical field
The utility model relates to confined chamber technical fields, are to be related to a kind of confined chamber of volume adjustable more specifically.
Background technique
In existing automobile all there is the volatilization of harmful substance in the components such as fuel tank, tire, automobile exterior, automobile chassis, when waving
When the concentration of hair property harmful substance is more than a certain range, can cause harm to the human body, it is therefore desirable to the harmful substance of automobile into
Row collects detection.
However, the existing closed chamber internal volume of evaporation is mostly fixed, it when detecting can not be according to the demand of detection to close
The volume of closed chamber is changed, and when confined chamber internal temperature changes, confined chamber volume can not change, and leads to outside contamination
Gas influences the precision of test, is unable to satisfy the demand detected at various temperature since draught head enters inside confined chamber.
Summary of the invention
The purpose of the utility model is to overcome drawbacks described above in the prior art, and providing one kind can be avoided external environment
Or other uncertain factors impact test result to effectively improve the confined chamber of the volume adjustable of detection accuracy.
To achieve the above object, the utility model provides a kind of confined chamber of volume adjustable, including confined chamber, described close
The gas compensation device for carrying out gas volume compensation to confined chamber inside in gas sampling process, institute are provided on closed chamber
It states gas compensation device to be arranged on one or more surfaces of confined chamber, the gas compensation device includes orifice plate, pressing plate, driving dress
It sets and elastic membrane, the orifice plate is installed in any on one or more surfaces of confined chamber, and the elastic membrane is arranged in corresponding orifice plate
Lateral surface on, and can be arranged on the lateral surface of corresponding elastic membrane with respect to confined chamber internal expansion or contraction, the pressing plate,
The driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, compresses elastic membrane and orifice plate with this
It is in contact.
Preferably, the driving device is set as pneumatically or electrically or manual driving device.
Preferably, being covered with temperature adjustment or damping collet outside the confined chamber, the temperature adjustment or damping collet are provided with
Temperature control or the wet unit of control.
Preferably, being provided with temperature adjustment control unit inside or outside the confined chamber, it is provided on the confined chamber
Closed hatch door.
Preferably, being provided with stirring blower in the confined chamber.
Preferably, the confined chamber is connected with exhaust pipe, scavenging air valve is provided on the exhaust pipe.
Preferably, the confined chamber is connected with admission line, be equipped on the admission line inlet air flow meter or/
And air intake valve.
A kind of control method of confined chamber for above-mentioned volume adjustable is provided, comprising the following steps:
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, temperature control or the control for adjusting temperature adjustment or debugging collet are wet
Unit adjusts the temperature adjustment control unit inside confined chamber, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, are closed scavenging air valve, are closed scavenging air valve, at this time
Closed chamber internal volume is the geometric volume of confined chamber；
3) driving device resets, and confined chamber internal temperature is risen to t2, the expansion of confined chamber inner air, inflation of elastic membrane
It heaves, at this time confined chamber volume are as follows: the geometric volume of ((273+t2)/(273+t1)) * confined chamber, thus close at a temperature of obtaining t2
The volume of closed chamber；
4) confined chamber internal temperature is risen into t3 again, at this time confined chamber volume are as follows: ((273+t3)/(273+t1)) *
The geometric volume of confined chamber, to obtain the volume of confined chamber at a temperature of t3.
A kind of control method of confined chamber for above-mentioned volume adjustable is provided again, comprising the following steps:
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, temperature control or the control for adjusting temperature adjustment or debugging collet are wet
Unit adjusts the temperature adjustment control unit inside confined chamber, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, are closed scavenging air valve, are closed scavenging air valve, at this time
Closed chamber internal volume is the geometric volume of confined chamber；
3) driving device resets, and opens air intake valve, by admission line and inlet air flow meter to being passed through inside confined chamber
Clean gas, being passed through gas volume is V1, and confined chamber inner air expands, and elastic membrane heaves expansion, and confined chamber volume is at this time
The geometric volume of V1+ confined chamber；
4) it adjusts temperature adjustment or debugs the temperature control or the wet unit of control of collet, rise or fall confined chamber internal temperature and reach
T2, confined chamber inner air expansion or shrinkage, inflation of elastic membrane or contraction, confined chamber volume is the (geometry of V1+ confined chamber at this time
Volume) * (273+t2)/(273+t1).
Compared with prior art, the utility model has the beneficial effects that:
The utility model structure is simple, including confined chamber and for carrying out gas to confined chamber inside in gas sampling process
The gas compensation device of body cubage compensation, gas compensation device are arranged on one or more surfaces of confined chamber, wherein gas compensation
Device includes orifice plate, pressing plate, driving device and elastic membrane, and orifice plate is installed in any on one or more surfaces of confined chamber, elastic membrane
It is arranged on the lateral surface of corresponding orifice plate, and can be with respect to confined chamber internal expansion or contraction, pressing plate setting is in corresponding elasticity
On the lateral surface of film, driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, compresses elasticity with this
Film is in contact with orifice plate, passes through the setting of elastic membrane, when confined chamber internal temperature rises, inflation of elastic membrane, when in confined chamber
Portion is when the temperature drops, elastic membrane is shunk, so that the internal capacity of confined chamber changes at a certain temperature, or by closed
Chamber interior carries out air inlet, changes the volume inside confined chamber with this, so that change of the closed chamber internal volume with test temperature
It is changed, effectively improves the precision of detection.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is this
Some embodiments of utility model, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is a kind of overall structure diagram of the confined chamber of volume adjustable provided by the utility model；
Fig. 2 is the overall structure diagram of the confined chamber of another volume adjustable provided by the utility model.
Specific embodiment
It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer
Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Embodiment one
Referring to FIG. 1, the embodiments of the present invention provide a kind of confined chamber of volume adjustable, including 1 He of confined chamber
For the gas compensation device 2 of gas volume compensation, gas compensation device 2 to be carried out to confined chamber inside in gas sampling process
It is arranged on one or more surfaces of confined chamber 1, wherein gas compensation device 2 includes orifice plate 3, pressing plate 4, driving device 5 and elasticity
Film 6, orifice plate 3 is installed in confined chamber 1 any, and elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3 on one or more surfaces,
And can be arranged on the lateral surface of corresponding elastic membrane 6 with respect to 1 internal expansion of confined chamber or contraction, pressing plate 4, driving device 5 with
Corresponding pressing plate 4 is sequentially connected, to drive moving forward and backward for pressing plate 4, compresses elastic membrane 6 with this and is in contact with orifice plate 3, below
The present embodiment is described in detail in conjunction with attached drawing.
As shown in Figure 1, be provided on confined chamber 1 in gas sampling process to inside confined chamber 1 carry out gas appearance
Product compensation gas compensation device 2, gas compensation device 2 be installed in confined chamber 1 one or more surfaces on, wherein gas compensation
Device 2 include orifice plate 3, pressing plate 4, driving device 5 and elastic membrane 6, orifice plate 3 be installed in confined chamber 1 it is any one or more surfaces
On, elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3, and can set with respect to 1 internal expansion of confined chamber or contraction, pressing plate 4
It sets on the lateral surface of corresponding elastic membrane 6, driving device 5 is sequentially connected with corresponding pressing plate 4, thus before driving pressing plate 4
After run, elastic membrane 6 is compressed with this and is in contact with orifice plate 3, by the setting of elastic membrane 6, when 1 internal temperature of confined chamber rises
When, elastic membrane 6 expands, and when the decline of 1 internal temperature of confined chamber, elastic membrane 6 is shunk, so that the internal capacity of confined chamber 1 is in spy
Determine to change at temperature, the volume inside confined chamber 1 is changed with this, so that 1 internal capacity of confined chamber is with test temperature
Change is changed, and effectively improves the precision of detection.
In the present embodiment, driving device 5 be may be configured as pneumatically or electrically or manual driving device, can according to the actual situation into
Row selection, not the present embodiment is limited.
Preferably, the outer cup of confined chamber 1 is equipped with temperature adjustment or damping collet 7, temperature adjustment or damping collet 7 are provided with temperature control
Or the wet unit of control is effectively kept the temperature or humidity inside confined chamber 1, is mentioned for test by temperature adjustment or the setting of damping collet 7
For the test environment of a standard stabiliser, the precision of test is effectively ensured.
Preferably, being provided with closed hatch door 15 on confined chamber 1, confined chamber 1 is internally provided with temperature adjustment control unit 8 and stirring
Blower 9 controls to adjust the temperature inside confined chamber 1, test is effectively ensured by the setting of temperature adjustment control unit 8
Precision, it is effectively that the Gas Stirring inside confined chamber 1 is uniform by stirring the setting of blower 9, convenient for detecting the displacement of preceding gas
Confined chamber internal gas concentration is stirred evenly with when sampling.
In the present embodiment, confined chamber 1 is connected with exhaust pipe 10, and scavenging air valve 11 is provided on exhaust pipe 10, before detection,
Polluted gas inside confined chamber 1 is discharged, clean free of contamination gas is replaced into, the precision of test is effectively ensured.
A kind of confined chamber of volume adjustable, including following regulating step:
(1) it keeps the closed hatch door 15 of confined chamber 1 to close, opens scavenging air valve 11, adjust the temperature control of temperature adjustment or damping collet 7
Or the wet unit of control, the temperature adjustment control unit 8 inside confined chamber 1 is adjusted, 1 internal temperature of confined chamber is made to reach t1；
(2) driving device 5 brings into operation, and driving elastic membrane 6 is compressed with 3 phase of orifice plate, closes scavenging air valve 11, at this time confined chamber
1 internal capacity is the geometric volume of confined chamber 1；
(3) driving device 5 resets, and 1 internal temperature of confined chamber is risen to t2, the expansion of 1 inner air of confined chamber, elastic membrane
3 expansions are heaved, at this time 1 volume of confined chamber are as follows: the geometric volume of ((273+30)/(273+20)) * confined chamber, to obtain t2
At a temperature of confined chamber 1 volume；
(4) 1 internal temperature of confined chamber is risen into t3 again, at this time 1 volume of confined chamber are as follows: ((273+ t3)/(273+
T1 the)) geometric volume of * confined chamber, to obtain the volume of confined chamber 1 at a temperature of t3.
When realizing temperature range variation of 1 internal temperature of confined chamber from t1 to t3 with this, to the internal capacity of confined chamber 1
Be adjusted, be effectively ensured confined chamber 1 in temperature changing process gas No leakage, without exchange, guarantee 1 internal pressure of confined chamber
It is constant.
When 1 internal temperature of confined chamber rises, inflation of elastic membrane, when the decline of 1 internal temperature of confined chamber, elastic membrane 6 is received
Contracting, changes the volume inside confined chamber 1 with this, so that 1 internal capacity of confined chamber is changed with the change of test temperature, has
Effect improves the precision of detection.
Embodiment two
The utility model embodiment two provides the confined chamber of another volume adjustable, and confined chamber 1 is connected with admission line
12, inlet air flow meter 13 or/and air intake valve 14 are installed, one kind of the utility model embodiment two is adjustable on admission line 12
The confined chamber of volume is largely identical as a kind of structure of the confined chamber of volume adjustable of above-described embodiment one, and something in common is no longer
It repeats.
In the present embodiment, confined chamber 1 is connected with admission line 12, be equipped on admission line 12 inlet air flow meter 13 or/
With air intake valve 14, driving device 5 resets, and opens air intake valve 14, by admission line 12 and inlet air flow meter 13 to closed
It is passed through clean gas inside room 1, being passed through gas volume is V1, and 1 inner air of confined chamber expands, and elastic membrane 6 heaves expansion, at this time
1 volume of confined chamber is the geometric volume of V1+ confined chamber.
In the present embodiment, a kind of confined chamber of volume adjustable, including following regulating step:
(1) it keeps the closed hatch door of confined chamber 1 to close 15, opens scavenging air valve 11, adjust temperature adjustment or debug the temperature control of collet 4
Or the wet unit of control, the temperature adjustment control unit 8 inside confined chamber 1 is adjusted, 1 internal temperature of confined chamber is made to reach t1；
(2) 5 setting in motion of driving device, driving elastic membrane 6 are compressed with 3 phase of orifice plate, close scavenging air valve 11, close scavenging air valve
11,1 internal capacity of confined chamber is the geometric volume of confined chamber 1 at this time；
(3) driving device 5 resets, and opens air intake valve 14, by admission line 12 and inlet air flow meter 13 to confined chamber 1
Inside is passed through clean gas, and being passed through gas volume is V1, and the expansion of 1 inner air of confined chamber, elastic membrane 6 heaves expansion, close at this time
1 volume of closed chamber is the geometric volume of V1+ confined chamber；
4) it adjusts temperature adjustment or debugs the temperature control or the wet unit of control of collet, rise or fall confined chamber internal temperature and reach
T2, confined chamber inner air expansion or shrinkage, inflation of elastic membrane or contraction, confined chamber volume is the (geometry of V1+ confined chamber at this time
Volume) * (273+t2)/(273+t1).
Realize that the internal capacity to confined chamber 1 is initially adjusted with this, after the completion of inflation, the internal standard of confined chamber 1
Volume is the geometric volume of V1+ confined chamber.When 1 internal temperature of confined chamber rises, inflation of elastic membrane, when 1 inside temperature of confined chamber
When degree decline, elastic membrane 6 is shunk, and when the variation of 1 internal temperature of confined chamber is effectively ensured, 1 internal pressure of confined chamber keeps stablizing, interior
Portion's gas No leakage, without exchange.
In addition, if considering when detection, atmospheric pressure and humidity influence in embodiment one and embodiment two, hold inside confined chamber 1
The influence factor of atmospheric pressure and humidity variation need to be added in long-pending variation.
In conclusion the utility model structure is simple, including confined chamber 1 and in gas sampling process to confined chamber
1 inside carries out the gas compensation device 2 of gas volume compensation, and one or more surfaces of confined chamber 1 is arranged in gas compensation device 2
On, wherein gas compensation device 2 includes orifice plate 3, pressing plate 4, driving device 5 and elastic membrane 6, and orifice plate 3 is installed in confined chamber 1
It is any that elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3 on one or more surfaces, and can with respect to 1 internal expansion of confined chamber or
It shrinks, pressing plate 4 is arranged on the lateral surface of corresponding elastic membrane 6, and driving device 5 is sequentially connected with corresponding pressing plate 4, to drive
Dynamic pressure plate 4 moves forward and backward, and compresses elastic membrane 6 with this and is in contact with orifice plate 3, by the setting of elastic membrane 6, when in confined chamber 1
When portion's temperature rises, elastic membrane 6 expands, and when the decline of 1 internal temperature of confined chamber, elastic membrane 6 is shunk, so that confined chamber 1 is interior
Portion's volume changes at a certain temperature, or by being changed inside confined chamber 1 with this to air inlet is carried out inside confined chamber 1
Volume effectively improves the precision of detection so that 1 internal capacity of confined chamber is changed with the change of test temperature.
Above-described embodiment is the preferable embodiment of the utility model, but the embodiments of the present invention is not by above-mentioned
The limitation of embodiment, it is made under other any spiritual essence and principles without departing from the utility model to change, modify, replacing
In generation, simplifies combination, should be equivalent substitute mode, is included within the protection scope of the utility model.
Claims (7)
1. a kind of confined chamber of volume adjustable, including confined chamber (1), it is characterised in that: be provided with and be used on the confined chamber (1)
To the gas compensation device (2) for carrying out gas volume compensation inside confined chamber (1), the gas compensation in gas sampling process
Device (2) be arranged on one or more surfaces of confined chamber (1), the gas compensation device (2) include orifice plate (3), pressing plate (4),
Driving device (5) and elastic membrane (6), the orifice plate (3) are installed in any on one or more surfaces of confined chamber (1), the elasticity
Film (6) is arranged on the lateral surface of corresponding orifice plate (3), and can be with respect to confined chamber (1) internal expansion or contraction, the pressing plate
(4) it is arranged on the lateral surface of corresponding elastic membrane (6), the driving device (5) is sequentially connected with corresponding pressing plate (4), from
And moving forward and backward for pressing plate (4) is driven, elastic membrane (6) is compressed with this and is in contact with orifice plate (3).
2. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: driving device (5) setting
For pneumatically or electrically or manual driving device.
3. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: be provide with outside the confined chamber (1)
There are temperature adjustment or damping collet (7), the temperature adjustment or damping collet (7) are provided with temperature control or the wet unit of control.
4. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: the confined chamber (1) it is internal or
Outside is provided with temperature adjustment control unit (8), and closed hatch door (15) are provided on the confined chamber.
5. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: setting in the confined chamber (1)
There are stirring blower (9).
6. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: the confined chamber (1) is connected with
Exhaust pipe (10) is provided with scavenging air valve (11) on the exhaust pipe (10).
7. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that: the confined chamber (1) is connected with
Admission line (12) is equipped with inlet air flow meter (13) or/and air intake valve (14) on the admission line (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008168.7U CN208488690U (en) | 2018-06-27 | 2018-06-27 | A kind of confined chamber of volume adjustable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821008168.7U CN208488690U (en) | 2018-06-27 | 2018-06-27 | A kind of confined chamber of volume adjustable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208488690U true CN208488690U (en) | 2019-02-12 |
Family
ID=65248733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821008168.7U Withdrawn - After Issue CN208488690U (en) | 2018-06-27 | 2018-06-27 | A kind of confined chamber of volume adjustable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208488690U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594915A (en) * | 2018-06-27 | 2018-09-28 | 东莞市升微机电设备科技有限公司 | A kind of confined chamber and control method of volume adjustable |
-
2018
- 2018-06-27 CN CN201821008168.7U patent/CN208488690U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108594915A (en) * | 2018-06-27 | 2018-09-28 | 东莞市升微机电设备科技有限公司 | A kind of confined chamber and control method of volume adjustable |
| WO2020001177A1 (en) * | 2018-06-27 | 2020-01-02 | 东莞市升微机电设备科技有限公司 | Sealed chamber having adjustable volume and control method |
| CN108594915B (en) * | 2018-06-27 | 2023-08-29 | 东莞市升微机电设备科技有限公司 | Volume-adjustable closed chamber and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6050296A (en) | Control apparatus | |
| CN208488690U (en) | A kind of confined chamber of volume adjustable | |
| JPH1026545A (en) | Coupling used for container and inspection apparatus for container | |
| US5388453A (en) | Method and apparatus for measuring evaporative vehicle emissions | |
| JP3845055B2 (en) | Gas permeability measuring device | |
| CN208621575U (en) | For detecting the evaporation confined chamber of harmful substance | |
| JP2003057143A (en) | Method and apparatus for inspecting airtightness of container especially automobile tank ventilating device, and diagnostic unit | |
| CN110043676A (en) | A kind of pressure seal parallel slide valve | |
| CN108845082B (en) | For detecting the evaporation confined chamber of harmful substance | |
| CN108594915A (en) | A kind of confined chamber and control method of volume adjustable | |
| JP3462854B2 (en) | Airtightness inspection method and airtightness inspection device for closed space with water vapor transfer control device | |
| CN108614082B (en) | Plant transpiration on-line monitoring appearance | |
| CA2519950A1 (en) | Air circulation apparatus and methods for plethysmographic measurement chambers | |
| US6234152B1 (en) | Method of checking the operability of a tank-venting system | |
| JP2006523131A5 (en) | ||
| CN105136252A (en) | Double-chamber gas metering device with metering correction function | |
| CN210426608U (en) | Temperature and humidity checking box | |
| JP2004117355A (en) | Airtightness inspecting method for container and its device | |
| CN209287354U (en) | A kind of constant temperature humidity chamber with water supplement function | |
| CN208476477U (en) | Filter element of water purifier air-leakage test rapid determination device | |
| KR101690026B1 (en) | Testing system for fuel tank | |
| CN208019071U (en) | A kind of supercritical carbon dioxide cleaning equipment | |
| CN111060361A (en) | Fuel system detection device and detection method thereof | |
| US20190157693A1 (en) | Diagnostic system, fuel cell system having a diagnostic system, and method for determining cathode gas contamination | |
| CN214844669U (en) | Cement specific surface area tester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190212 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |