CN102249558B - Manufacturing system for vacuum glass - Google Patents
Manufacturing system for vacuum glass Download PDFInfo
- Publication number
- CN102249558B CN102249558B CN2011101653887A CN201110165388A CN102249558B CN 102249558 B CN102249558 B CN 102249558B CN 2011101653887 A CN2011101653887 A CN 2011101653887A CN 201110165388 A CN201110165388 A CN 201110165388A CN 102249558 B CN102249558 B CN 102249558B
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- Prior art keywords
- sealing case
- vacuum glass
- intermediate temperature
- temperature sealing
- bleeding
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- 239000011521 glass Substances 0.000 title claims abstract description 70
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 93
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 230000000740 bleeding effect Effects 0.000 claims description 34
- 238000000605 extraction Methods 0.000 claims description 22
- 238000003723 Smelting Methods 0.000 claims description 20
- 239000000463 material Substances 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 2
- 238000005086 pumping Methods 0.000 abstract 2
- 238000010924 continuous production Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000005357 flat glass Substances 0.000 description 2
- 238000005816 glass manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
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Abstract
The invention relates to a manufacturing system for vacuum glass. The system comprises a high-temperature heating box, a low-temperature sealing box and a vacuum pump, wherein a communicated hot air pipe is arranged between the high-temperature heating box and the low-temperature sealing box; the low-temperature sealing box consists of a movable sealing box cover and a pumping box; and the movable sealing box cover and the pumping box are arranged hermetically. The manufacturing system for vacuum glass consists of the high-temperature heating box and the low-temperature sealing box, and a hot air pipeline of the low-temperature sealing box is communicated with a pipeline of the high-temperature heating box, therefore the waste heat of the high-temperature heating box can be fully utilized by a low-temperature vacuum furnace so as to remove moisture from a vacuum glass vacuum cavity. The manufacturing system for vacuum glass has the advantages of environment friendliness, energy conservation and capabilities of removing the moisture from the vacuum glass and improving the quality of vacuum glass; moreover, the entire manufacturing system is combined organically, so that continuous production of vacuum glass is facilitated, and the production efficiency is increased.
Description
Technical field
The invention belongs to the vacuum glass field, especially a kind of manufacturing system of vacuum glass.
Background technology
At present; Traditional vacuum glass method of manufacture is on base plate glass, to lay upholder; And then close sheet, edge sealing, make aspirating hole, extraction pipe is installed, two sheet glass are lain in heat edge sealing in the process furnace, take out vacuumizing again; Behind the fusing extraction pipe, can form vacuum glass.Perhaps also can in vacuum furnace, directly heat edge sealing and vacuumize.The shortcoming that above-mentioned two kinds of methods exist is: the spacing between 1, the parallel held glass supporter of going up in the existing vacuum furnace, every layer of glass supporter is 15-25cm, and is equipped with the head of bleeding of band chilled water unit on every layer of glass supporter; The head of bleeding connects the extraction pipe that vacuum glass is installed, and the vacuum unit is located at outside the stove, vacuumizes in stove and seals; Accomplish the vacuum glass manufacturing thus; But this structure formation makes in the stove and in the unit volume complicacy is set, and the number of plies is few, yields poorly; 2, the head unit complex structure of bleeding of existing vacuum glass is taken over difficulty, frangible, and water cooling is prone to leak and causes the accident generation; 3, existing vacuum glass exhaust tube is a through hole; In the process of cooling of vacuum glass behind edge sealing; Also retaining in its vacuum chamber has some moistures, though these moistures can adopt getter to absorb, also exists the problem of vacuum degree deficiency and influences the quality of vacuum glass; 4, existing process furnace and vacuum oven have function separately separately, not organically contact basically, and energy consumption is bigger.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, a kind of design science is provided, effective, the vacuum glass quality of bleeding is high, the manufacturing system of a kind of vacuum glass of environmental protection and energy saving.
The present invention solves its technical problem and realizes through following technical scheme:
A kind of manufacturing system of vacuum glass; Comprise heat case, low intermediate temperature sealing case and vacuum pump; It is characterized in that: the heating duct that is interconnected is installed between heat case and low intermediate temperature sealing case; Said low intermediate temperature sealing case is made up of the hydrodynamic reciprocating sealing case lid and the exhaust chamber of low intermediate temperature sealing case, and the hydrodynamic reciprocating sealing case lid of low intermediate temperature sealing case and exhaust chamber sealing are installed.
And; Said heat case is made up of hydrodynamic reciprocating sealing case lid, the heating container of high intermediate temperature sealing case; The hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case is the gate-type structure, and sealing cover is contained on the heating container, and the hydrodynamic reciprocating sealing case lid and the heating container of high intermediate temperature sealing case all are equipped with lagging material; Both sides at the hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case all are equipped with traversing carriage, and the lower end of this traversing carriage is equipped with roller in orbit.
And the both sides of the low temperature hydrodynamic reciprocating sealing case lid of said low intermediate temperature sealing case all are equipped with traversing carriage, and the lower end of this traversing carriage is equipped with roller in orbit.
And said low intermediate temperature sealing case is provided with a backwind tube, and this backwind tube is communicated with heating duct, and on the heating duct of backwind tube front end, stopping valve is installed.
And; The positive outer wall level of the exhaust chamber of said low intermediate temperature sealing case installs the carriage of bleeding; Be uniformly distributed with on this carriage of bleeding and be fixed with the extraction pipe joint at interval; The pipe connecting of bleeding that coaxial installation is communicated with the extraction pipe of the intravital vacuum glass of case on this extraction pipe joint, this pipe connecting of bleeding adopts tracheae to be connected with vacuum pump; The disconnected switchboard of electric smelting is installed on the outer wall above the carriage of bleeding in the exhaust chamber front of hanging down the intermediate temperature sealing case, and the disconnected switchboard of this electric smelting is electrically connected with the intravital electric smelting outage of the case utmost point.
And, on the exhaust chamber inwall of low intermediate temperature sealing case, leaving the pipe connecting of bleeding that the air extraction connector installed with outer wall is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; On the exhaust chamber inwall of corresponding each pipe connecting of bleeding, install the glass support frame of a level; On the exhaust chamber base plate of corresponding each pipe connecting of bleeding, be fixed with the vacuum glass deck, on the glass support frame that the exhaust chamber inwall is installed, all be fixed with the vacuum glass deck.
And, two electric smelting outage utmost points all are installed in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding, these two electric smelting outage utmost points are connected with the disconnected switchboard of electric smelting.
Advantage of the present invention and beneficial effect are:
1, the manufacturing system of this vacuum glass is made up of heat case and low intermediate temperature sealing case, and the hot air duct of low intermediate temperature sealing case is communicated with the pipeline of heat case, thus; The waste heat that the cryogenic vacuum stove can make full use of the heat case carries out the moisture removal in the vacuum glass vacuum chamber, not only environmental protection and energy saving, and can remove the moisture in the vacuum glass; Improve the quality of vacuum glass; And whole manufacturing system is organically combined, and help realizing the serialization production of vacuum glass, enhance productivity.
2, this vacuum glass making system is uniformly distributed with at interval on the exhaust chamber outer wall of low intermediate temperature sealing case pipe connecting is installed, and the extraction pipe that side is bled is directly installed pipe connecting, and pipe connecting connects the vacuum pump unit outside stove.Owing to be that side is bled, therefore can keep height between the glass supporter outward between 0.5cm-15cm, because the stove that is connected of bleed Glass tubing and vacuum pump unit carries out; The operating space is big; Simple to operate joint efficiency is high easily, and the water cooling circulation needn't be set; Simplify system, and can improve the vacuum glass output in the single process furnace.
3, this vacuum glass making system is uniformly distributed with in exhaust chamber and is fixed with many group positioning components at interval; Can adopt vertical method or closed assembly method that vacuum glass is installed; Improved the production quantity of vacuum glass thus greatly; Production efficiency improves more than at least one times, efficiently solves the problem that vacuum glass yields poorly.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 looks enlarged view for the right side of the low intermediate temperature sealing case of Fig. 1;
Fig. 3 is the vertical view (removing low temperature hydrodynamic reciprocating sealing case lid) of the low intermediate temperature sealing case of Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, through specific embodiment the present invention is made further detailed description, following examples are descriptive, are not determinate, can not limit protection scope of the present invention with this.
A kind of manufacturing system of vacuum glass; Referring to Fig. 1,2,3, comprise heat case and low intermediate temperature sealing case, the heat case is made up of hydrodynamic reciprocating sealing case lid 10, the heating container 11 of high intermediate temperature sealing case; The hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case is the gate-type structure; And sealing cover is contained on the heating container, and the hydrodynamic reciprocating sealing case lid and the heating container of high intermediate temperature sealing case all are equipped with lagging material, in the both sides of the hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case traversing carriage 12 is installed all; The lower end of this traversing carriage is equipped with the roller (not having label) on track 13, realizes that the hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case opens or seal heating container under the horizontally slipping of traversing carriage.
Low intermediate temperature sealing case is made up of the hydrodynamic reciprocating sealing case lid 2 and the exhaust chamber 3 of low intermediate temperature sealing case; The hydrodynamic reciprocating sealing case lid of low intermediate temperature sealing case also is the gate-type structure; And sealing cover is contained on the exhaust chamber; The hydrodynamic reciprocating sealing case lid and the exhaust chamber of low intermediate temperature sealing case all are equipped with lagging material; Both sides at the hydrodynamic reciprocating sealing case lid that hangs down the intermediate temperature sealing case all are equipped with traversing carriage 4, and the lower end of this traversing carriage is equipped with roller (not having label) in orbit, realize that the hydrodynamic reciprocating sealing case lid of low intermediate temperature sealing case opens or seal exhaust chamber under the horizontally slipping of traversing carriage.
Among the present invention, the internal structure of heat case adopts existing stack assembly structure form, and present embodiment is no longer specifically given unnecessary details for this reason.Though adopted the structure of portable case lid in the present embodiment accompanying drawing, also can adopt more traditional opening door case lid form.
Be communicated with through heating duct 1 between heat case and the low intermediate temperature sealing case, low intermediate temperature sealing case is provided with a backwind tube 8, and this backwind tube is communicated with heating duct, can realize hanging down the insulation of intermediate temperature sealing case, and stopping valve 9 is installed on the heating duct of backwind tube front end.
The outer wall level of the exhaust chamber of low intermediate temperature sealing case positive 14 installs the carriage 16 of bleeding; Be uniformly distributed with on this carriage of bleeding and be fixed with extraction pipe joint 15 at interval; The pipe connecting 22 of bleeding that coaxial installation is communicated with the extraction pipe of the intravital vacuum glass of case on this extraction pipe joint, this pipe connecting of bleeding adopts tracheae 6 to be connected with vacuum pump 7.
The disconnected switchboard 5 of electric smelting is installed on the outer wall above the carriage of bleeding in the exhaust chamber front of hanging down the intermediate temperature sealing case, and the disconnected switchboard of this electric smelting is electrically connected with the intravital electric smelting outage of the case utmost point 21.
On the exhaust chamber inwall of low intermediate temperature sealing case, leave the pipe connecting of bleeding that the air extraction connector installed with outer wall is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; In the present embodiment, with being connected of extraction pipe of vacuum glass be in exhaust chamber, also can this connection be arranged on outside the exhaust chamber.On the exhaust chamber inwall of corresponding each pipe connecting of bleeding, install the glass support frame 20 of a level; On the exhaust chamber base plate of corresponding each pipe connecting of bleeding, be fixed with vacuum glass deck 17; On the glass support frame that the exhaust chamber inwall is installed, all be fixed with vacuum glass deck 19, these two decks are vacuum glass 18 can vertically to be stablized be installed in the exhaust chamber.Two electric smelting outage utmost points (also can be) all are installed in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding; These two electric smelting outage utmost points are connected with the disconnected switchboard of electric smelting; Be used to vacuumize back fusing extraction pipe, the electric smelting outage extremely can be adopted wire spiral, and flame gun substitutes.
In the present embodiment, each vacuum glass be spaced apart 0.5cm ~ 15cm.
In the present embodiment, adopt the setting mode to be installed in the exhaust chamber during vacuum glass, also can adopt stacked system up and down; It is the vacuum glass parallel mode; Shelf is arranged therebetween, and the extraction pipe and the electric smelting outage utmost point also adopt erects the form that is provided with, and also can reach effect of the present invention equally.
Claims (7)
1. the manufacturing system of a vacuum glass; Comprise heat case, low intermediate temperature sealing case and vacuum pump; It is characterized in that: the heating duct that is interconnected is installed between heat case and low intermediate temperature sealing case; Said low intermediate temperature sealing case is made up of the hydrodynamic reciprocating sealing case lid and the exhaust chamber of low intermediate temperature sealing case, and the hydrodynamic reciprocating sealing case lid of low intermediate temperature sealing case and exhaust chamber sealing are installed.
2. the manufacturing system of vacuum glass according to claim 1; It is characterized in that: said heat case is made up of hydrodynamic reciprocating sealing case lid, the heating container of high intermediate temperature sealing case; The hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case is the gate-type structure, and sealing cover is contained on the heating container, and the hydrodynamic reciprocating sealing case lid and the heating container of high intermediate temperature sealing case all are equipped with lagging material; Both sides at the hydrodynamic reciprocating sealing case lid of high intermediate temperature sealing case all are equipped with traversing carriage, and the lower end of this traversing carriage is equipped with roller in orbit.
3. the manufacturing system of vacuum glass according to claim 1, it is characterized in that: the both sides of the low temperature hydrodynamic reciprocating sealing case lid of said low intermediate temperature sealing case all are equipped with traversing carriage, and the lower end of this traversing carriage is equipped with roller in orbit.
4. the manufacturing system of vacuum glass according to claim 1, it is characterized in that: said low intermediate temperature sealing case is provided with a backwind tube, and this backwind tube is communicated with heating duct, and on the heating duct of backwind tube front end, stopping valve is installed.
5. the manufacturing system of vacuum glass according to claim 1; It is characterized in that: the positive outer wall level of the exhaust chamber of said low intermediate temperature sealing case installs the carriage of bleeding; Be uniformly distributed with on this carriage of bleeding and be fixed with the extraction pipe joint at interval; The pipe connecting of bleeding that coaxial installation is communicated with the extraction pipe of the intravital vacuum glass of case on this extraction pipe joint, this pipe connecting of bleeding adopts tracheae to be connected with vacuum pump; The disconnected switchboard of electric smelting is installed on the outer wall above the carriage of bleeding in the exhaust chamber front of hanging down the intermediate temperature sealing case, and the disconnected switchboard of this electric smelting is electrically connected with the intravital electric smelting outage of the case utmost point.
6. the manufacturing system of vacuum glass according to claim 5; It is characterized in that: on the exhaust chamber inwall of low intermediate temperature sealing case, leave the pipe connecting of bleeding that the air extraction connector installed with outer wall is communicated with, this pipe connecting of bleeding is connected with the extraction pipe of vacuum glass in exhaust chamber; On the exhaust chamber inwall of corresponding each pipe connecting of bleeding, install the glass support frame of a level; On the exhaust chamber base plate of corresponding each pipe connecting of bleeding, be fixed with the vacuum glass deck, on the glass support frame that the exhaust chamber inwall is installed, all be fixed with the vacuum glass deck.
7. the manufacturing system of vacuum glass according to claim 5 is characterized in that: two electric smelting outage utmost points all are installed in corresponding each vacuum glass exhaust tube both sides that are connected with the pipe connecting of bleeding, and these two electric smelting utmost points and electric smelting switchboard that breaks that cuts off the power supply is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653887A CN102249558B (en) | 2011-06-20 | 2011-06-20 | Manufacturing system for vacuum glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101653887A CN102249558B (en) | 2011-06-20 | 2011-06-20 | Manufacturing system for vacuum glass |
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| Publication Number | Publication Date |
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| CN102249558A CN102249558A (en) | 2011-11-23 |
| CN102249558B true CN102249558B (en) | 2012-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101653887A Active CN102249558B (en) | 2011-06-20 | 2011-06-20 | Manufacturing system for vacuum glass |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105246846B (en) * | 2014-03-19 | 2017-07-25 | 北京新立基真空玻璃技术有限公司 | The vacuum drawn car and vacuum glass production line of vacuum glass |
| CN105502962A (en) * | 2015-12-28 | 2016-04-20 | 太仓耀华玻璃有限公司 | Reversible thermochromism vacuum glass |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289782A (en) * | 1999-02-04 | 2000-10-17 | Hikari Kinzoku Kogyo Kk | Heat-resistant glass food preservation sealed-up vacuum container, and method for preserving cooked rice and food for heat-cooking or food to be heated |
| CN1810656A (en) * | 2005-01-28 | 2006-08-02 | 孟英志 | Method and apparatus for utilizing air energy and solar energy in generating electricity and desalting sea water |
| CN1861534A (en) * | 2005-05-13 | 2006-11-15 | 王世忠 | Production process of building vacuum glass plate |
| CN101148313A (en) * | 2006-09-20 | 2008-03-26 | 黄家军 | One-step forming vacuum glass and its manufacturing method and device |
| CN101348326A (en) * | 2007-07-17 | 2009-01-21 | 青岛亨达玻璃科技有限公司 | Continuous production method and apparatus for vacuum glass |
| KR20100032139A (en) * | 2008-09-17 | 2010-03-25 | 주식회사 에피온 | Vacuum glazing and manufacturing method thereof |
| CN102030464A (en) * | 2010-03-26 | 2011-04-27 | 青岛亨达玻璃科技有限公司 | Continuous production equipment of vacuum glass |
-
2011
- 2011-06-20 CN CN2011101653887A patent/CN102249558B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000289782A (en) * | 1999-02-04 | 2000-10-17 | Hikari Kinzoku Kogyo Kk | Heat-resistant glass food preservation sealed-up vacuum container, and method for preserving cooked rice and food for heat-cooking or food to be heated |
| CN1810656A (en) * | 2005-01-28 | 2006-08-02 | 孟英志 | Method and apparatus for utilizing air energy and solar energy in generating electricity and desalting sea water |
| CN1861534A (en) * | 2005-05-13 | 2006-11-15 | 王世忠 | Production process of building vacuum glass plate |
| CN101148313A (en) * | 2006-09-20 | 2008-03-26 | 黄家军 | One-step forming vacuum glass and its manufacturing method and device |
| CN101148313B (en) * | 2006-09-20 | 2011-01-12 | 黄家军 | One-step forming vacuum glass and its manufacturing method and device |
| CN101348326A (en) * | 2007-07-17 | 2009-01-21 | 青岛亨达玻璃科技有限公司 | Continuous production method and apparatus for vacuum glass |
| KR20100032139A (en) * | 2008-09-17 | 2010-03-25 | 주식회사 에피온 | Vacuum glazing and manufacturing method thereof |
| CN102030464A (en) * | 2010-03-26 | 2011-04-27 | 青岛亨达玻璃科技有限公司 | Continuous production equipment of vacuum glass |
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| CN102249558A (en) | 2011-11-23 |
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Effective date of registration: 20160505 Address after: 300000 Tianjin city Jinnan District xianshuigu poly Hing Road 7 No. 1 No. 601 Patentee after: Tianjin new vacuum glass Co.,Ltd. Address before: 300350 Haihe Industrial Zone, Jinnan District, Tianjin Patentee before: TIANJIN GUSHANG VACUUM GLASS MANUFACTURE Co.,Ltd. |
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Effective date of registration: 20160817 Address after: 300000 Tianjin Haihe Industrial Zone Patentee after: Tianjin vacuum glass manufacturing Limited by Share Ltd. Address before: 300000 Tianjin city Jinnan District xianshuigu poly Hing Road 7 No. 1 No. 601 Patentee before: Tianjin new vacuum glass Co.,Ltd. |
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Effective date of registration: 20200424 Address after: 271100 No.15, Qiantangjiang street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee after: Shandong Gushang vacuum glass technology Co.,Ltd. Address before: 300000 Tianjin Haihe Industrial Zone Patentee before: Tianjin vacuum glass manufacturing Limited by Share Ltd. |
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Effective date of registration: 20200923 Address after: 300000 Tianjin city Jinnan District xianshuigu poly Hing Road 7 No. 5 No. 601 Patentee after: Tianjin vacuum glass manufacturing Limited by Share Ltd. Address before: 271100 No.15, Qiantangjiang street, Laiwu high tech Zone, Jinan City, Shandong Province Patentee before: Shandong Gushang vacuum glass technology Co.,Ltd. |
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Effective date of registration: 20230721 Address after: 1st floor of north factory building and south office building, No. 12, Yingye Road, Xiaozhan, Jinnan District, Tianjin, 300000 Patentee after: Tianjin Gushang Innovation Vacuum Glass Co.,Ltd. Address before: Room 601, building 5, 7 Juxing Road, xianshuigu Town, Jinnan District, Tianjin Patentee before: Tianjin vacuum glass manufacturing Limited by Share Ltd. |
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Effective date of registration: 20230919 Address after: Room 601, building 5, 7 Juxing Road, xianshuigu Town, Jinnan District, Tianjin Patentee after: Tianjin vacuum glass manufacturing Limited by Share Ltd. Address before: 1st floor of north factory building and south office building, No. 12, Yingye Road, Xiaozhan, Jinnan District, Tianjin, 300000 Patentee before: Tianjin Gushang Innovation Vacuum Glass Co.,Ltd. |
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Effective date of registration: 20231121 Address after: No. 102, Gate 2, Building 10, Boya Garden, Xianshuigu Town, Jinnan District, Tianjin, 300000 Patentee after: Zuo Shusen Address before: Room 601, building 5, 7 Juxing Road, xianshuigu Town, Jinnan District, Tianjin Patentee before: Tianjin vacuum glass manufacturing Limited by Share Ltd. |
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Effective date of registration: 20231211 Address after: Room 5A317, National Agricultural Science and Technology Park Management Committee, Jinnan District, Tianjin, 300000 Patentee after: Tianjin Gushang Innovation Vacuum Glass Co.,Ltd. Address before: No. 102, Gate 2, Building 10, Boya Garden, Xianshuigu Town, Jinnan District, Tianjin, 300000 Patentee before: Zuo Shusen |
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