CN201992297U - Adjustable support - Google Patents
Adjustable support Download PDFInfo
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- CN201992297U CN201992297U CN2011200848313U CN201120084831U CN201992297U CN 201992297 U CN201992297 U CN 201992297U CN 2011200848313 U CN2011200848313 U CN 2011200848313U CN 201120084831 U CN201120084831 U CN 201120084831U CN 201992297 U CN201992297 U CN 201992297U
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- adjustable support
- annulus
- shaped supporting
- horizontal component
- standing portion
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Abstract
The utility model discloses an adjustable support, which is characterized by comprising a ring portion, an adjusting portion and two L-shaped support portions. The ring portion is used for holding a device to be cleaned, the adjusting portion contacts with the ring portion and extends from the ring portion, the two L-shaped support portions extend downwards from the adjusting portion and support the ring portion and the adjusting portion, and the ring portion, the adjusting portion and the L-shaped support portions are made of plastic materials.
Description
Technical field
The utility model relates to a kind of adjustable support, more particularly, relates to a kind of adjustable support that is used to clean cone or cylinder.
Background technique
In the analytical chemistry field, especially the impurity element Detection range can be used some sampling spiroids, and these cones are made with expensive material usually, or the great number import.Therefore, normally contaminated back reuses by cleaning.
Icp ms (ICP-MS) is an inorganic elements Mass Spectrometer Method ANALYZER of development in recent years, its uniqueness, advanced detection performance make it to be promoted rapidly in countries in the world, are widely used in trace, trace or ultratrace impurity element check and analysis field in industries such as metallurgy, petrochemical industry, Di Kuang, environmental protection, nuclear energy, medicine and food.ICP-MS has the interface awl that belongs to inlet system, this interface awl is made of sampling spiroid and two assemblies of intercepting awl, be used for that the ion of icp ms ionization introduced mass spectrometer and stop high vacuum mass spectrometer and ambient atmosphere are separated by the two-stage cone, the interface awl is made with different taper shapes by metals such as nickel, copper, and vertex of a cone end offers the aperture of 1 millimeter.During test sample, because the matrix oxide is deposited on the top and the aperture place of two awls easily, and sample matrices component and metal cone material at high temperature produce alloying reaction, therefore often sampling spiroid and intercepting awl need be disassembled from ICP-MS, utilize acid cleaning solution (being generally the salpeter solution of 2%-5%) to clean sampling spiroid and intercepting awl, particularly will be deposited on the cone and the matrix oxide and the alloy cpd of taper hole bit point wash.
At present, clean the method that ICP-MS sampling spiroid and intercepting awl adopted usually and be: directly that sampling spiroid and intercepting awl is whole, fully be immersed among the salpeter solution of 2%-5%, adopt the mode of supersonic oscillations or low-temperature heat to carry out cleaning operation then.The defective of this method maximum is that cleaning operation does not have specific aim, no matter contaminated degree of cone and position are all cleaned whole cone, and identical to the cleaning process at each position, like this, to there not being contaminated position to carry out same cleaning yet.Therefore, this method is bigger to the effect of cone corrosion failure, has seriously shortened the working life of interface awl expensive on the ICP-MS detecting instrument, has increased and has bought the frequency of changing, and has increased the check and analysis cost greatly.
Therefore, need a kind of position that can clean as required easily to clean the equipment of contaminated cone or cylinder.
The model utility content
The utility model provides a kind of adjustable support that is used to clean cone or cylinder that can improve cleaning efficiency.
The utility model provides a kind of adjustable support that is used to clean cone or cylinder that can slow down the working life of cone or cylinder corrosion and prolongation awl.
The utility model provides a kind of adjustable support that can regulate oneself height that is used to clean cone or cylinder.
According to an aspect of the present invention, provide a kind of adjustable support, described adjustable support comprises: the annulus part is used to place the device with being cleaned; Regulate part, partly contact with annulus and partly extend from annulus respectively, be used to regulate the diameter of annulus part; L shaped supporting part respectively from regulating part extension downwards, is used to support the annulus part and regulates part, and annulus part, adjusting part and L shaped supporting part are bent to form by a plastic material.
Each L shaped supporting part can include standing portion and horizontal component, and described standing portion is because the characteristic bending back of plastic material forms horizontal component.
Adjustable ratio between the length of standing portion and the length of horizontal component.
Regulating part can link to each other at an angle with the standing portion of L shaped supporting part.
Regulating part can be in obtuse angle in vertical plane with standing portion, and described obtuse angle can be 105 °.
The horizontal component of described each L shaped supporting part can be acute angle with the line that is connected described bending place in horizontal plane, described acute angle can be 75 °.
The length of the horizontal component of described each L shaped supporting part can be more than or equal to the diameter of annulus part.
But described adjustable support can be made by the corrosion-resistant plastic material.
Described adjustable support outside can be provided with anti-corrosion material.
The length of described each standing portion in described two L shaped supporting parts can be identical, and the length of described each horizontal component in described two L shaped supporting parts can be identical.
Can be parallel with horizontal plane or be inclined relative to horizontal in the plane at annulus part place.
The length of described each standing portion in described two L shaped supporting parts can be different, and the length of described each horizontal component in described two L shaped supporting parts can be different.
According to a further aspect in the invention, provide a kind of adjustable support, described adjustable support comprises: the annulus part is used to place the device with being cleaned; Supporting part, extend downwards from the annulus part, be used to support the annulus part, described supporting part comprises standing portion and horizontal component, described standing portion is because the characteristic bending back of plastic material forms horizontal component, and annulus part and supporting part are bent to form by a plastic material.
Described adjustable support also can comprise the adjusting part, and an end of regulating part partly links to each other with annulus, and the other end links to each other with supporting part, and the adjusting part partly contacts with annulus and partly extends from annulus respectively, is used to regulate the diameter of annulus part.
Adjustable support of the present utility model by the annulus part that can place cone in the chemical field or cylinder (for example sampling spiroid in the interface system of icp ms or intercepting awl), regulate part and two L shaped supporting parts constitute, the height of the size of the annulus of adjustable support part and the standing portion of L shaped supporting part all can be by flexibly, optionally regulate, and this adjustable support has antiseptic property, is not subjected to the corrosion of cleaning solution.
The cone that the diameter of annulus part can be cleaned as required or the size of cylinder are adjusted, the height of adjustable support can be regulated according to the liquid level position of cleaning solution in the clean container, both can regulate separately or regulate together, thereby guarantee that the position that need be cleaned contacts effectively with cleaning solution, and the position that need not to clean does not contact with cleaning solution, therefore, can realize " clean in place " at cone or the easy contaminated position of cylinder, avoid all the other positions of cleaning solution corrosion cone or cylinder, so improved cleaning efficiency on the one hand, slow down the degree that cone or cylinder are etched on the other hand, prolonged the working life of cone or cylinder.
Description of drawings
By the description of carrying out below in conjunction with accompanying drawing, above-mentioned and other purpose of the present utility model and characteristics will become apparent, wherein:
Fig. 1 is the schematic representation according to adjustable support of the present utility model.
Fig. 2 is the stereogram according to adjustable support of the present utility model.
Fig. 3 is the schematic representation of using according to adjustable support of the present utility model.
Fig. 4 illustrates the schematic representation of making adjustable support of the present utility model.
Embodiment
Below, describe embodiments of the invention with reference to the accompanying drawings in detail.
As shown in Figure 1 to Figure 3, embodiment's of the present utility model adjustable support is mainly used in the cleaning in the chemical field.In the utility model, be that example is described with sampling spiroid or the intercepting awl that cleans in the mass spectrometric interface system of element check and analysis.
In an embodiment of the present utility model, adjustable support is made by a plastic material, in whole root timber material without any need for link.That is to say that whole adjustable support is an one, is not to be formed by a plurality of component-assembled.In addition, whole adjustable support also need not by technologies such as bonding, binding or welding different parts to be combined.
This elastic material can have Anticorrosive Character, if this elastic material does not have anti-corrosive properties, then one deck anti-corrosion material can be set outside this material, maybe can be wrapped in closely outside the plastic material, to form anticorrosive coat with similar materials such as medical proof fabric or adhesive tapes.
In an embodiment of the present utility model, be that example is described adjustable support of the present utility model to clean the mass spectrometric sampling spiroid of element check and analysis or to intercept awl.As depicted in figs. 1 and 2, comprise annulus part 1, regulate part 2 and 2 ' and L shaped supporting part according to embodiment's of the present utility model adjustable support.L shaped supporting part be the plasticity support except that annulus part 1 and regulate remainder the part 2 and 2 ', constitute by standing portion and horizontal component respectively, that is, L shaped supporting part respectively by standing portion 3 and 3 ' and horizontal component 4 and 4 ' constitute.Annulus part 1, regulate part 2 and 2 ' and L shaped supporting part make by a plastic material, for example, can make by an iron wire.
Usually, the plane at annulus part 1 place can be substantially parallel with horizontal plane.Since regulate part 2 and 2 ' and be annulus part 1 extension, therefore, can all can be inverted reposefully or be placed on the annulus part 1 with cone or the cylinder of guaranteeing all kinds or size by regulating the diameter that part 2 and 2 ' changes annulus part 1.Specifically, can be by outwards pulling or promote adjusting portion inwards and divide the 2 and 2 ' diameter that changes annulus part 1 respectively, so that itself and diameter coupling of the cone that will clean or cylinder.As shown in Figure 2, when outwards evenly firmly spurring adjusting portion respectively along the direction of arrow and divide 2 and 2 ', a part of circular arc of annulus part 1 shifts out annulus part 1, becomes and regulates part 2 and 2 ', thereby dwindled the diameter of annulus part 1.On the contrary, when evenly enforcing adjusting part 2 and 2 ' along the direction opposite with the direction of arrow, a part of regulating part 2 and 2 ' becomes the part of annulus part 1, thereby has increased the diameter of annulus part 1.
The closed place of the annulus of annulus part 1 is a contact segment 11 with the part that adjusting part 2 contacts with 2 '.After adjusting part 2 and 2 ' can stretch out a segment distance respectively from contact segment 11, be bent downwardly, form L shaped supporting part in first bending place 12 and 12 '.
The standing portion 3 and 3 ' of L shaped supporting part is extended downwards at vertical plane laterally from first bending place 12 and 12 ' respectively, that is to say that the distance between first bending place 12 and 12 ' is less than the distance between second bending place 13 and 13 '.Therefore, in vertical plane, the angle of standing portion 3 between first bending place 12 of regulating part 2 and L shaped supporting part in obtuse angle, the angle between the standing portion 3 ' of adjusting part 2 ' and L shaped supporting part is in obtuse angle, for example, described angle is 105 ° approximately.But, in vertical plane, regulate part 2 and 2 ' and be not limited thereto, can balance put behind cone that adjustable support self and placement will be cleaned or the cylinder as long as guarantee with the standing portion 3 and 3 ' the angle of L shaped supporting part first bending place 12 and 12 '.
Adjustable support according to exemplary embodiment of the present utility model, can change the height of this adjustable support by the position of regulating second bending place 13 and 13 ', promptly, can by regulate standing portion 3 and 3 ' and horizontal component 4 and 4 ' between ratio change the height of this adjustable support, specifically, by regulating in the L shaped supporting part height that the ratio between the standing portion 3 ' and horizontal component 4 ' in the ratio between the standing portion 3 and horizontal component 4 and another L shaped supporting part changes adjustable support, need guaranteeing the sampling spiroid that emphasis cleans or the positions such as taper hole tip of intercepting awl can be immersed in the cleaning solution, and do not need on the liquid level that the cone of cleaning or cylinder part can remain on cleaning solution and do not contact with cleaning solution.
Usually, ratio between standing portion 3 in L shaped supporting part and the horizontal component 4 and the standing portion 3 ' in another L shaped supporting part and the ratio between the horizontal component 4 ' are configured to identical, and be substantially parallel with horizontal plane with the plane of guaranteeing circular portion 1 place.But, in other embodiments, if cone or the contaminated area of a cylinder part are big, the contaminated area of a part is little, then can change standing portion 3 and a standing portion 3 ' in the ratio between the horizontal component 4 and another the L shaped supporting part and a ratio between the horizontal component 4 ' in the L shaped supporting part according to the cone that will clean or the contaminated situation of cylinder, placing cone or cylinder as required obliquely, thereby realize better cleaning performance.As selection, can be arranged to identical with the ratio between the horizontal component two standing portion in the L shaped supporting part, only can be by reversing the plane inclination that annulus part 1 makes annulus part 1 place, and not parallel with horizontal plane, cone or cylinder are placed in realization obliquely.Above-mentioned dual mode can be selected a use, and use also can walk abreast.
The horizontal component 4 of L shaped supporting part and 4 ' is provided with respectively towards each other at an angle, and horizontal component 4 and 4 ' length are equal to, or greater than the diameter of annulus part 1.Horizontal component 4 and 4 ' respectively and the β at an angle in horizontal plane of the line between second bending place 13 and 13 ', that is to say, line between horizontal component 4 and second bending place 13 and 13 ' in horizontal plane at an angle, the line between horizontal component 4 ' and second bending place 13 and 13 ' in horizontal plane at an angle.In the present embodiment, horizontal component 4 and 4 ' respectively and the line between second bending place 13 and 13 ' in horizontal plane, be acute angle, for example be 75 °, but this angle is not limited thereto, horizontal component 4 and 4 ' respectively and the line between second bending place 13 and 13 ' in horizontal plane, be other angle, as long as this angle can balance be put after can making this adjustable support self and placing the interface awl.
Fig. 4 shows the making method according to adjustable support of the present utility model.Be described below with reference to Fig. 4.
Shown in (a) among Fig. 4, size according to cone of being cleaned or cylinder, the middle bent of anticorrosion plastic material is formed the annular of a diameter less than the cone that will clean or column diameter,, and make the plane at annulus part 1 place substantially parallel with horizontal plane with formation annulus part 1.
Shown in (b) among Fig. 4, to be positioned at the annulus point of intersection (promptly respectively, contact segment 11) stretching one-tenth of the plastic material at two ends and annulus are tangent, form and regulate part 2 and 2 ', it is crooked laterally downwards in vertical plane respectively to regulate part 2 and 2 ' then, plastic material is converted into and regulates part 2 and 2 ' respectively be about 105 ° of angles in vertical plane.
Shown in (c) among Fig. 4, according to the height of the adjustable support of setting determine L shaped supporting part standing portion 3 and 3 ' and horizontal component 4 and 4 ' between bending point (promptly, second bending place 13 and 13 ') position, then, in second bending place 13 and 13 ' along continuous straight runs plastic material is bent, to form horizontal component 4 and 4 ', in addition, horizontal component 4 and 4 ' inside (center of circle direction of annulus part 1) are tilted, as in the present embodiment, horizontal component 4 and 4 ' is formed about 75 ° of angles with the line that is connected between second bending place 13 and 13 '.
At last, the adjustable support of formation shown in (d) among Fig. 4.
Below, with reference to Fig. 1 to Fig. 3, be that example is described the application according to adjustable support of the present utility model to clean the mass spectrometric interface awl of element check and analysis.
When using adjustable support to clean mass spectrometric sampling spiroid of element check and analysis or intercepting awl, earlier sampling spiroid or intercepting awl are placed on the annulus part 1 of adjustable support with being inverted; Adjust the diameter of annulus part 1 then according to the size that is placed on cone that the needs on the annulus part 1 are cleaned or cylinder, promptly, the cone that is cleaned according to the needs that are placed on the annulus part 1 or the size of cylinder, outwards pulling or promote adjusting portion inwards and divide the 2 and 2 ' diameter that changes annulus part 1 respectively; Then, regulate the height of adjustable support according to the liquid level of cleaning solution in the clean container, promptly, according to the height of cleaning solution liquid level determine adjustable support standing portion 3 and 3 ' and horizontal component 4 and 4 ' between second inflection point 13 and 13 ' position, that is to say, determine standing portion 3 and 3 ' and the ratio of horizontal component 4 and 4 ' in L shaped supporting part according to the height of cleaning solution liquid level, bend plastic material then, make it roughly form " L " shape, if the cone or the contaminated degree of cylinder of cleaning are average, then can be configured to the ratio between standing portion 3 ' and the horizontal component 4 ' in the ratio between the standing portion 3 in the L shaped supporting part and the horizontal component 4 and another the L shaped supporting part identical, parallel with the plane of guaranteeing circular portion 1 place with horizontal plane, to clean cone or cylinder equably, if the cone or the contaminated degree of cylinder of cleaning are inhomogeneous, then can be configured to the ratio between standing portion 3 ' and the horizontal component 4 ' in the ratio between the standing portion 3 in the L shaped supporting part and the horizontal component 4 and another the L shaped supporting part different, perhaps reverse annulus part 1 and make its inclination, as required cone or cylinder are placed on the annulus part 1 obliquely; At last, horizontal component 4 and 4 ' is provided with respectively towards each other obliquely and and second bending place 13 and 13 ' between line in horizontal plane at an angle, thereby realize stably supporting the cone or the cylinder that will clean.
On the other hand, if the height of adjustable support is fixed, then can control suitable liquid level height, thereby adjustment cone or cylinder are dipped into the position in the cleaning solution, so that the position that needs to clean effectively contacts with cleaning solution by the volume of controlling the cleaning solution that injects container.In sum, by adjustable support of the present utility model, annulus size and support height all can be flexibly, regulated at will, and have antiseptic property, not corroded by cleaning solution.When cleaning, cone or cylinder can be upside down on the support, adjust annulus diameter partly according to cone or cylinder size, regulate support height according to cleaning solution liquid level in the clean container, if adjustable support is fixed, then control the cleaning solution liquid level height of pouring into, thereby adjustment cone or cylinder are dipped into position in the cleaning solution, guarantee that the position that needs to clean effectively contacts with cleaning solution, the position that need not to clean does not contact with cleaning solution.
Usually cone base position is cleaned easily, arrives the difficult more cleaning of cone tip portion more, and needed time is long more.Use can be adjusted flexibly according to adjustable support of the present utility model and clean the position, in cleaning process, adjusts, changes the sharp degree of depth, the position that is immersed in the washing lotion of awl at any time, is convenient to finish the cone position disengaging washing lotion of cleaning, avoids unnecessary corrosion.Because cone is inverted and is cleaned, thus inside and outside surface all can be effectively, fully with the cleaning solution reaction, the cone base contacts with container bottom and causes washing effect poor when having avoided cone just putting like this, clean time is long and extent of corrosion is serious.
According to adjustable support of the present utility model, do not need whole cone or cylinder are fully immersed in corrosive cleaning solution, do not need whole cone or cylinder are carried out whole " face cleaning ", but only emphasis " point cleans " is targetedly carried out at contaminated serious position on cone or the cylinder, avoid corroding cone or cylinder remaining part, make cleaning operation fast efficient more, shortened the cleaning operation time.Gentlier need not cone or the cylinder position cleaned for not contaminated or pollution level, can be in the overall process of cleaning operation, at any time regulate support as required neatly, control cone or cylinder are immersed in position and the time in the cleaning solution, thereby delayed the extent of corrosion of butt joint prostomum greatly, effectively prolong its working life, saved check and analysis cost and manual maintenance intensity greatly.In addition, simple according to adjustable support making method of the present utility model, the size of annulus part with highly all can be flexibly, regulated at will.And have antiseptic property, not corroded by cleaning solution.
Though in the above-described embodiments, the diameter of the annulus of adjustable support part assigns to regulate by adjusting portion,, in other embodiments, the diameter of annulus part can be arranged to immobilize, only make the adjustable height of supporting part.In this case, after forming the annulus part, can be formed directly in L shaped supporting part, need not to regulate the adjusting part of circle diameter.
Embodiment's of the present utility model adjustable support is mainly used in the cleaning of cone in the chemical field or cylinder, for example mass spectrometric cleaning of element check and analysis.But, also can be used for the cleaning of device in other field.In the utility model, what will be cleaned is taper, but in other embodiments, what will be cleaned can be cylindrical body device, cirque body device, oval device, polygonal device etc.
Though the utility model is specifically described with reference to its exemplary embodiment and is shown, but will be understood by those skilled in the art that, under the situation that does not break away from the spirit and scope of the present utility model that are defined by the claims, can carry out the various changes of form and details to it.
Claims (16)
1. an adjustable support is characterized in that, described adjustable support comprises:
The annulus part is used to place the device with being cleaned;
Regulate part, partly contact with annulus and partly extend from annulus respectively, be used to regulate the diameter of annulus part;
L shaped supporting part extends downwards from regulating part respectively, and be used to support the annulus part and regulate part,
Annulus part, adjusting part and L shaped supporting part are bent to form by a plastic material.
2. adjustable support as claimed in claim 1 is characterized in that, each L shaped supporting part includes standing portion and horizontal component.
3. adjustable support as claimed in claim 1 is characterized in that, the adjustable ratio between the length of standing portion and the length of horizontal component.
4. adjustable support as claimed in claim 2 is characterized in that, regulates part and links to each other at an angle with the standing portion of L shaped supporting part.
5. adjustable support as claimed in claim 4 is characterized in that, regulate part and standing portion in vertical plane in obtuse angle.
6. adjustable support as claimed in claim 5 is characterized in that, described obtuse angle is 105 °.
7. adjustable support as claimed in claim 2 is characterized in that, the horizontal component of described each L shaped supporting part is acute angle with the line that is connected described bending place in horizontal plane.
8. adjustable support as claimed in claim 7 is characterized in that, described acute angle is 75 °.
9. adjustable support as claimed in claim 2 is characterized in that, the length of the horizontal component of described each L shaped supporting part is more than or equal to the diameter of annulus part.
10. adjustable support as claimed in claim 2 is characterized in that described adjustable support is made by the corrosion-resistant plastic material.
11. adjustable support as claimed in claim 1 is characterized in that, described adjustable support outer installment has anti-corrosion material.
12. adjustable support as claimed in claim 1 is characterized in that, the length of described each standing portion in described two L shaped supporting parts is identical, and the length of described each horizontal component in described two L shaped supporting parts is identical.
13. adjustable support as claimed in claim 2 is characterized in that, the plane at annulus part place is parallel with horizontal plane or be inclined relative to horizontal.
14. adjustable support as claimed in claim 13 is characterized in that, the length difference of described each standing portion in described two L shaped supporting parts, the length difference of described each horizontal component in described two L shaped supporting parts.
15. an adjustable support is characterized in that, described adjustable support comprises:
The annulus part is used to place the device with being cleaned;
Supporting part extends downwards from the annulus part, is used to support the annulus part, and described supporting part comprises standing portion and horizontal component,
Annulus part and supporting part are bent to form by a plastic material.
16. adjustable support as claimed in claim 15, it is characterized in that, described adjustable support also comprises the adjusting part, an end of regulating part partly links to each other with annulus, the other end links to each other with supporting part, the adjusting part partly contacts with annulus and partly extends from annulus respectively, is used to regulate the diameter of annulus part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200848313U CN201992297U (en) | 2011-03-28 | 2011-03-28 | Adjustable support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200848313U CN201992297U (en) | 2011-03-28 | 2011-03-28 | Adjustable support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201992297U true CN201992297U (en) | 2011-09-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200848313U Expired - Fee Related CN201992297U (en) | 2011-03-28 | 2011-03-28 | Adjustable support |
Country Status (1)
| Country | Link |
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| CN (1) | CN201992297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344648A (en) * | 2015-12-16 | 2016-02-24 | 上海华虹宏力半导体制造有限公司 | Device for cleaning skimmer cone in mass spectrometer |
| CN107238013A (en) * | 2017-06-29 | 2017-10-10 | 刘晓英 | One kind pressing desk lamp |
-
2011
- 2011-03-28 CN CN2011200848313U patent/CN201992297U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105344648A (en) * | 2015-12-16 | 2016-02-24 | 上海华虹宏力半导体制造有限公司 | Device for cleaning skimmer cone in mass spectrometer |
| CN107238013A (en) * | 2017-06-29 | 2017-10-10 | 刘晓英 | One kind pressing desk lamp |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110928 Termination date: 20160328 |
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| CF01 | Termination of patent right due to non-payment of annual fee |