CN201793539U - Production system for solid-liquid-phase-composite lubricating grease - Google Patents
Production system for solid-liquid-phase-composite lubricating grease Download PDFInfo
- Publication number
- CN201793539U CN201793539U CN2010202452693U CN201020245269U CN201793539U CN 201793539 U CN201793539 U CN 201793539U CN 2010202452693 U CN2010202452693 U CN 2010202452693U CN 201020245269 U CN201020245269 U CN 201020245269U CN 201793539 U CN201793539 U CN 201793539U
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- Prior art keywords
- soap
- solid
- proportioner
- tank
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004519 grease Substances 0.000 title claims abstract description 60
- 239000002131 composite material Substances 0.000 title claims abstract description 45
- 230000001050 lubricating effect Effects 0.000 title claims abstract description 38
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000000344 soap Substances 0.000 claims abstract description 53
- 238000002360 preparation method Methods 0.000 claims abstract description 29
- 239000000654 additive Substances 0.000 claims abstract description 14
- 230000000996 additive effect Effects 0.000 claims abstract description 14
- 239000007791 liquid phase Substances 0.000 claims description 38
- 239000003921 oil Substances 0.000 claims description 30
- 239000000314 lubricant Substances 0.000 claims description 20
- 239000013538 functional additive Substances 0.000 claims description 17
- 239000006185 dispersion Substances 0.000 claims description 14
- 239000011344 liquid material Substances 0.000 claims description 14
- 208000019300 CLIPPERS Diseases 0.000 claims description 12
- 208000021930 chronic lymphocytic inflammation with pontine perivascular enhancement responsive to steroids Diseases 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 238000010008 shearing Methods 0.000 claims description 10
- 239000002199 base oil Substances 0.000 claims description 8
- 238000001914 filtration Methods 0.000 claims description 7
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 238000009833 condensation Methods 0.000 claims description 2
- 230000005494 condensation Effects 0.000 claims description 2
- 238000005461 lubrication Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229910052582 BN Inorganic materials 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- 229910004261 CaF 2 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 239000003570 air Substances 0.000 description 1
- -1 as P bO Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical field of lubricating grease preparation, in particular to a production system for solid-liquid-phase-composite lubricating grease. The technical scheme of the production system includes that the production system for solid-liquid-phase-composite lubricating grease mainly comprises a soap-based grease preparation system, a solid-liquid-phase-composite additive preparation system and a solid-liquid-phase-composite lubricating grease forming system. The solid-liquid-phase-composite lubricating grease produced by the production system can realize lubrication of all lubricated temperature sections without a blind spot, and guarantee lubrication of lubricated equipment to the maximum extent and long service life of the lubricated equipment.
Description
Technical field
The utility model belongs to the lubricating grease preparing technical field, relates in particular to a kind of production system of solid-liquid phase composite lubricating grease product.
Background technology
Lubricated add lubricant between the frictional contact surface of relative movement with exactlying, make between two surface in contacts and form lubricant film, the friction that becomes dry is reduced friction to reach for the internal friction between the lubricant interior molecules, reduces and weares and teares the purpose of prolonged mechanical service life of equipment.
Modern lubricant is broadly divided into following several big class:
1 liquid lubricant: comprise vegetable and animals oils, mineral oil, synthetic oil, water fluid etc.
2 semi-solid lubricantss: under normal temperature, normal pressure, be semi-fluid condition exactly, and the lubricant-lubricating grease of colloidal structure is arranged.
3 solid lubricants: it comprises metallic compound, as P
bO, CaF
2, MoS
2Deng;
Nonmetal inorganics is as graphite, boron nitride etc.;
4 gas lubricants: comprise air, helium, nitrogen, hydrogen etc.
Analyze above-mentioned all series lubricant agents (lubricating system) from lubricated effect and effect, existing its lubricated advantage of every kind of lubricant also has its deficiency.
Lubricating grease does not need to consider the problem of solid-liquid separation as semi-solid lubricants; But also need to consider two-phase scattering problem and structural issue.There are the graphite mould of single type and the lubricating grease of single molybdenumdisulphide type to sell in the market, but the purity of solid lubricant owing to fail well to consider, synergetic property between the solid lubricant with not at the different application occasion reasonably select solid lubricant the optimum size zonation and with its auxiliary aid prescription that adapts (according to various surface of friction pair roughness different), cause in use, lubricant film does not reach the best lubricating effect that adapts, and oil film strength does not reach perfect condition.Present prior art does not also have to produce the production system that each component wherein can both accomplish can both play in different lubrication time sections the solid-liquid phase composite special greases of answering role separately.
Summary of the invention
The purpose of this utility model is, overcomes the deficiencies in the prior art, and a kind of production system of solid-liquid phase composite lubricating grease product is provided.The solid-liquid phase composite lubricating grease that this production system is produced, can tighten and improve the structure formation of common lubricating grease, in use temperature, lubricating system, aspects such as lubricant effect are from initial stage normal temperature below 60 ℃, in the later stage warm 60-120 ℃, high temperature 80-180 ℃, in the greasing of extra-high-speed temperature more than 350 ℃, each active principle plays the lubrication that should rise separately in the solid-liquid phase composite lubricating grease in different lubricated temperature sections.
For solving the problems of the technologies described above, the technical solution of the utility model is: the production system of solid-liquid phase composite lubricating grease product comprises that mainly soap grease preparation system, solid-liquid phase composite additive preparation system become the fat system with solid-liquid phase composite lubricating grease; Described soap grease preparation system comprises that at least two soap grease parallel with one another prepare sub-system and form, described soap grease prepares sub-system and comprises soap pressure still, chain gear toothed gear pump I, vacuum outgas shearing jar, chain gear toothed gear pump II and the proportioner I that connects successively by pipeline, also comprise respectively and press still and vacuum outgas to shear tank connected clipper I, shear the clipper II that jar is connected with the proportioner I with vacuum outgas respectively with soap; Described solid-liquid phase composite additive preparation system comprises that the liquid material treatment tank of last agitator motor is arranged at the solid lubricant premixing tank, proportioner II, continous way kneader, magnetic flow meter, toothed gear pump II and the top that connect successively by pipeline, comprise also and the proportioner III of continous way kneader that described liquid material treatment tank presses still to be connected with soap by pipe connection; Described solid-liquid phase composite lubricating grease becomes the fat system to comprise that the pressure by pipe connection shears dispersion tank and chain gear toothed gear pump III, and described pressure is sheared dispersion tank and is connected with the proportioner III with the proportioner I respectively.
Production system of the present utility model comprises: base oil stocking system, oil functional additive stocking system, soap grease preparation system, solid-liquid phase composite additive preparation system, positive vacuum control system, heating system, solid-liquid phase composite lubricating grease become fat system, filtering system and auto-filling packaging system; Described base oil stocking system comprises that by pipeline connection basis oil tank successively, toothed gear pump I and self-measuring device described self-measuring device presses still, vacuum outgas shearing jar to be connected with the liquid material treatment tank with soap respectively by pipeline; Described oil functional additive stocking system comprises oil functional additive jar, toothed gear pump I and the self-measuring device that connects successively by pipeline, and described oil functional additive jar presses still to be connected by the toothed gear pump I with self-measuring device and soap; Described soap grease preparation system comprises that at least two soap grease parallel with one another prepare sub-system and form, described soap grease prepares sub-system and comprises soap pressure still, chain gear toothed gear pump I, vacuum outgas shearing jar, chain gear toothed gear pump II and the proportioner I that connects successively by pipeline, also comprise respectively and press still and vacuum outgas to shear tank connected clipper I, shear the clipper II that jar is connected with the proportioner I with vacuum outgas respectively with soap; Described solid-liquid phase composite additive preparation system comprises that the liquid material treatment tank of last agitator motor is arranged at the solid lubricant premixing tank, proportioner II, continous way kneader, magnetic flow meter, toothed gear pump II and the top that connect successively by pipeline, comprise also and the proportioner III of continous way kneader that described liquid material treatment tank is irritated with base oil, the oil functional additive is irritated and is connected by pipe connection; Described positive vacuum control system comprises by vacuum pump, surge tank and the drainer of pipeline according to connection, also comprises and the tank connected air compressor of condensation, and described drainer presses still and vacuum outgas shearing jar to be connected with soap respectively by pipeline; Described heating system comprises electric heat source producer and connected heat conduction pump, and described heat conduction pump presses still to be connected with soap; Described solid-liquid phase composite lubricating grease becomes the fat system to comprise that the pressure by pipe connection shears dispersion tank and chain gear toothed gear pump III, and described pressure is sheared dispersion tank and is connected with the proportioner III with the proportioner I respectively; Described filtering system comprises filter and connected pipeline, and filter is connected with the toothed gear pump III; Described auto-filling packaging system comprises filling machine and connected pipeline, and filling machine is sheared dispersion tank with filter and pressure respectively and is connected.
Soap of the present utility model presses the interior conduction coil pipe of still and the electric heat source producer of heating system to be connected to form closed cycle, is connected to Heat-transfer Oil Pump in the pipeline, and Heat-transfer Oil Pump is carried thermal oil to advance soap and pressed in the interior heating tube of still.
Proportioner I of the present utility model, II, III and continous way kneader are carries the stirring-cage type device.
The various structures that are provided with in the device described in the utility model are known configurations.
The beneficial effects of the utility model are: the production system of solid-liquid phase composite lubricating grease product comprises that mainly soap grease preparation system, solid-liquid phase composite additive preparation system become the fat system with solid-liquid phase composite lubricating grease; Production system of the present utility model has been owing to adopted novel soap to press still, become that the fat degassing is irritated, the new electrically heating source generator, and it is nearly 50% that process time of making soap fat was shortened than the traditional processing technology time, obtained economize on electricity, reduces the effect of manufacturing cost; In addition, by proportioner the soap grease preparation system, solid-liquid phase composite additive preparation system becomes the fat system organically to link together with solid-liquid phase composite lubricating grease, make each system can carry out work simultaneously, realized serialization production lubricating grease, whole process flow can be finished in 4 hours.The application of chain gear toothed gear pump has substituted the clarifixator in the traditional processing technology, has saved the investment of production equipment expense.
It is lubricated that the solid-liquid phase composite lubricating grease of the utility model production can realize that each lubricated temperature section does not have blind spot, guaranteed the long lifetime of the farthest lubricated and equipment lubrication of lubrication equipment.This composite lubricated membrane change the condition of surface of surface of friction pair (being roughness); reduced frictional coefficient; improved oil film strength (supporting capacity) simultaneously; can receive effects such as reducing friction, reduce wearing and tearing, save energy, protection and prolongation service life of equipment, open up the new way of a save energy.
Description of drawings
Accompanying drawing is a structural representation of the present utility model,
Among the figure: 101-base oil stocking system 102-oil functional additive stocking system
103-soap grease preparation system 104-solid-liquid phase composite additive preparation system
The positive vacuum control system 106-of 105-heating system
The 107-solid-liquid phase composite lubricating grease becomes the fat system
108-filtering system 109-auto-filling packaging system
1-basis oil tank, 2-oil functional additive jar, 3-toothed gear pump I, the 4-self-measuring device, 5-solid materials input port, the 6-soap is pressed still, 7-extrudes gas port clearly, 8-clipper I, jar is sheared in the 9-vacuum outgas, 10-clipper II, 11-proportioner I, 12-chain gear toothed gear pump I, 13-chain gear toothed gear pump II, 14-solid lubricant premixing tank, the last agitator motor of 15-, 16-liquid material treatment tank, 17-proportioner II, the 18-magnetic flow meter, 19-toothed gear pump II, 20-continous way kneader, 21-proportioner III, 22-forces to shear dispersion tank, 23-chain gear toothed gear pump III, the 24-filter, the 25-filling machine, the 26-vacuum pump, the 27-surge tank, the 28-drainer, the 29-air compressor, 30-electric heat source producer, 31-heat conduction pump
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Embodiment
With reference to the accompanying drawings, the production system of solid-liquid phase composite lubricating grease product, this production system comprises: base oil stocking system 101, oil functional additive stocking system 102, soap grease preparation system 103, solid-liquid phase composite additive preparation system 104, positive vacuum control system 105, heating system 106, solid-liquid phase composite lubricating grease become fat system 107, filtering system 108 and auto-filling packaging system 109; Described base oil stocking system 101 comprises by pipeline connection basis oil tank 1 successively, toothed gear pump I 3 and self-measuring device 4, and described self-measuring device 4 presses still 5, vacuum outgas to shear jars 8 with soap respectively by pipeline to be connected with liquid material treatment tank 15; Described oil functional additive stocking system 102 comprises oil functional additive jar 2, toothed gear pump I 3 and the self-measuring device 4 that connects successively by pipeline, and described oil functional additive jar 2 presses still 5 to be connected by toothed gear pump I 3 with self-measuring device 4 and soap; Described soap grease preparation system 103 comprises that at least two soap grease parallel with one another prepare sub-system and form, described soap grease prepares sub-system and comprises soap pressure still 5, chain gear toothed gear pump I 11, vacuum outgas shearing jar 8, chain gear toothed gear pump II 12 and the proportioner I 10 that connects successively by pipeline, also comprise respectively and press still 5 to shear jar 8 clipper I 7 that are connected, shear jar 8 clipper II 9 that are connected with proportioner I 10 with vacuum outgas respectively with vacuum outgas with soap; Described solid-liquid phase composite additive preparation system 104 comprises that the liquid material treatment tank 15 of last agitator motor 14 is arranged at the solid lubricant premixing tank 13, proportioner II 16, continous way kneader 19, magnetic flow meter 17, toothed gear pump II 18 and the top that connect successively by pipeline, comprise also and the proportioner III 20 of continous way kneader 19 that described liquid material treatment tank 15 is connected with basic oil tank 1, oil functional additive jar 2 by pipe connection; Described positive vacuum control system 105 comprises by pipeline according to the vacuum pump 25, surge tank 26 and the drainer 27 that connect, also comprise the air compressor 28 that is connected with drainer 27, described drainer 27 presses still 5 and vacuum outgas shearing jar 8 to be connected with soap respectively by pipeline; Described heating system 106 comprises electric heat source producer 29 and connected heat conduction pump 30, and described heat conduction pump 30 presses still 5 to be connected with soap; Described solid-liquid phase composite lubricating grease becomes fat system 107 to comprise that the pressure by pipe connection shears dispersion tank 21 and toothed gear pump III 22, and described pressure is sheared dispersion tank 21 and is connected with proportioner III 20 with proportioner I 10 respectively; Described filtering system 108 comprises filter 23 and connected pipeline, and filter 23 is connected with chain gear toothed gear pump III 12; Described auto-filling packaging system 109 comprises filling machine 24 and connected pipeline, and filling machine 24 is sheared dispersion tank 21 with filter 23 and pressure respectively and is connected.
Claims (2)
1. the production system of solid-liquid phase composite lubricating grease product is characterized in that: comprise that mainly soap grease preparation system, solid-liquid phase composite additive preparation system become the fat system with solid-liquid phase composite lubricating grease; Described soap grease preparation system comprises that at least two soap grease parallel with one another prepare sub-system and form, described soap grease prepares sub-system and comprises soap pressure still, chain gear toothed gear pump I, vacuum outgas shearing jar, chain gear toothed gear pump II and the proportioner I that connects successively by pipeline, also comprise respectively and press still and vacuum outgas to shear tank connected clipper I, shear the clipper II that jar is connected with the proportioner I with vacuum outgas respectively with soap; Described solid-liquid phase composite additive preparation system comprises that the liquid material treatment tank of last agitator motor is arranged at the solid lubricant premixing tank, proportioner II, continous way kneader, magnetic flow meter, toothed gear pump II and the top that connect successively by pipeline, comprise also and the proportioner III of continous way kneader that described liquid material treatment tank presses still to be connected with soap by pipe connection; Described solid-liquid phase composite lubricating grease becomes the fat system to comprise that the pressure by pipe connection shears dispersion tank and chain gear toothed gear pump III, and described pressure is sheared dispersion tank and is connected with the proportioner III with the proportioner I respectively.
2. the production system of solid-liquid phase composite lubricating grease product according to claim 1 is characterized in that: this production system comprises: base oil stocking system, oil functional additive stocking system, soap grease preparation system, solid-liquid phase composite additive preparation system, positive vacuum control system, heating system, solid-liquid phase composite lubricating grease become fat system, filtering system and auto-filling packaging system; Described base oil stocking system comprises that by pipeline connection basis oil tank successively, toothed gear pump I and self-measuring device described self-measuring device presses still, vacuum outgas shearing jar to be connected with the liquid material treatment tank with soap respectively by pipeline; Described oil functional additive stocking system comprises oil functional additive jar, toothed gear pump I and the self-measuring device that connects successively by pipeline, and described oil functional additive jar presses still to be connected by the toothed gear pump I with self-measuring device and soap; Described soap grease preparation system comprises that at least two soap grease parallel with one another prepare sub-system and form, described soap grease prepares sub-system and comprises soap pressure still, chain gear toothed gear pump I, vacuum outgas shearing jar, chain gear toothed gear pump II and the proportioner I that connects successively by pipeline, also comprise respectively and press still and vacuum outgas to shear tank connected clipper I, shear the clipper II that jar is connected with the proportioner I with vacuum outgas respectively with soap; Described solid-liquid phase composite additive preparation system comprises that the liquid material treatment tank of last agitator motor is arranged at the solid lubricant premixing tank, proportioner II, continous way kneader, magnetic flow meter, toothed gear pump II and the top that connect successively by pipeline, comprise also and the proportioner III of continous way kneader that described liquid material treatment tank is connected with basic oil tank, oil functional additive jar by pipe connection; Described positive vacuum control system comprises by vacuum pump, surge tank and the drainer of pipeline according to connection, also comprises and the tank connected air compressor of condensation, and described drainer presses still and vacuum outgas shearing jar to be connected with soap respectively by pipeline; Described heating system comprises electric heat source producer and connected heat conduction pump, and described heat conduction pump presses still to be connected with soap; Described solid-liquid phase composite lubricating grease becomes the fat system to comprise that the pressure by pipe connection shears dispersion tank and toothed gear pump III, and described pressure is sheared dispersion tank and is connected with the proportioner III with the proportioner I respectively; Described filtering system comprises filter and connected pipeline, and filter is connected with chain gear toothed gear pump III; Described auto-filling packaging system comprises filling machine and connected pipeline, and filling machine is sheared dispersion tank with filter and pressure respectively and is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202452693U CN201793539U (en) | 2010-07-02 | 2010-07-02 | Production system for solid-liquid-phase-composite lubricating grease |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202452693U CN201793539U (en) | 2010-07-02 | 2010-07-02 | Production system for solid-liquid-phase-composite lubricating grease |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201793539U true CN201793539U (en) | 2011-04-13 |
Family
ID=43848457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202452693U Expired - Fee Related CN201793539U (en) | 2010-07-02 | 2010-07-02 | Production system for solid-liquid-phase-composite lubricating grease |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201793539U (en) |
-
2010
- 2010-07-02 CN CN2010202452693U patent/CN201793539U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Duan Shuangling Inventor before: Zhang Guangyan Inventor before: Gong Pitong Inventor before: Zou Ming Inventor before: Zhang Guiqin |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160831 Address after: 253000 Shandong city of Dezhou Province Economic and Technological Development Zone Tianqu road and Zonta five Avenue Interchange east 200 meters north of Shandong Derun Technology Development Co. Ltd. Patentee after: Duan Shuangling Address before: 250001, Shandong Province, Ji'nan City Central Road, No. 88, Pearl building, international business office, room 2325 Patentee before: Gong Pitong Patentee before: Zhang Guangyan Patentee before: Zou Ming Patentee before: Zhang Guiqin |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170419 Address after: 100035 Beijing, Xinjiekou, west of a district, building 6-3, No. 6, Fashion Hotel, room 210 Patentee after: Beijing Derun Technology Co., Ltd. Address before: 253000 Shandong city of Dezhou Province Economic and Technological Development Zone Tianqu road and Zonta five Avenue Interchange east 200 meters north of Shandong Derun Technology Development Co. Ltd. Patentee before: Duan Shuangling |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110413 Termination date: 20190702 |