CN1439726A - Hot air stove - Google Patents
Hot air stove Download PDFInfo
- Publication number
- CN1439726A CN1439726A CN02157064A CN02157064A CN1439726A CN 1439726 A CN1439726 A CN 1439726A CN 02157064 A CN02157064 A CN 02157064A CN 02157064 A CN02157064 A CN 02157064A CN 1439726 A CN1439726 A CN 1439726A
- Authority
- CN
- China
- Prior art keywords
- settling chamber
- liner
- dome
- air
- coal gas
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 14
- 239000003034 coal gas Substances 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 29
- 239000011449 brick Substances 0.000 claims description 8
- 238000012856 packing Methods 0.000 abstract 2
- 238000005422 blasting Methods 0.000 description 9
- 238000002485 combustion reaction Methods 0.000 description 9
- 230000003245 working effect Effects 0.000 description 5
- 230000008646 thermal stress Effects 0.000 description 4
- 230000000737 periodic effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000003556 assay Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009851 ferrous metallurgy Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/10—Other details, e.g. blast mains
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Abstract
The patent relates to a air heaters has casing provided with lining, packing and dome with pre-chamber located in its upper portion coaxially with it; pre-chamber is provided with casing and lining with independent support on casing. Hot blast pipe union is located above packing at distance no less than diameter of its flow section. Gas and air passages made in lateral vertical wall of pre-chamber lining are communicated with inner collectors and pipe unions supplying gas and air. Axes of upper passages from lower collector are directed to axis of pre-chamber and are shifted upward from horizontal plane through angle of 30 deg. and axes of remaining passages are located in horizontal plane at angle of 15-30 deg. to radii passing through centers of their outlet holes. Side vertical wall of pre-chamber is divided into two parts by vertical seam; inner part is used as support for main brickwork of prechamber dome. Partition dividing gas and air collectors is supported by walls of brickwork adjoining collectors on side of casing and on side of lateral vertical wall.
Description
Technical field
The invention belongs to the ferrous metallurgy field, relate more specifically to hotblast stove as the blast furnace blast heating unit.
Background technology
As everyone knows, all there are a series of great defectives in Cowper stove and outside combustion stove.And no combustion chamber (top ignition) hotblast stove (the Russ P No.2145637 of a plurality of burners or settling chamber is installed on the hotblast stove dome, a, c, No.602555, Japanese Patent No.48-4284, U.S. Patent No. 3473794) be the most rising hotblast stove.
Aspect technical spirit and general characteristic, the most approaching of the present invention be top combustion stove (prototype) related in No. the 2145637th, Russ P (C21B, 9/02).This top combustion stove comprises the shell of a band liner, checker work grillage, dome, heating duct joint and settling chamber, the heating duct joint is positioned at checker work grillage top, distance from checker work grillage to the heating duct medullary ray is not less than the length of heating duct channel cross-section diameter, settling chamber is positioned at dome top, and it is concentric with dome, settling chamber shell band liner, and be independent of the dome liner, independent supporting device and dome are arranged in the settling chamber shell, coal gas annular header and air annular header are installed in settling chamber, coal gas and air annular header are arranged in the liner of the settling chamber below the shell one on the other, partition wall is arranged each other, all there is the liner that passes between shell and the collector to introduce coal gas and the tube stub of air and the exhaust channel that is arranged in settling chamber liner vertical side wall on coal gas collector and the air header, coal gas and air directly enter settling chamber, therefore, the medullary ray of upward arranging each passage from lower header is all aimed at the medullary ray of settling chamber, and the angle of upward and horizontal plane is about 30 °, and is 15～30 ° at the medullary ray of the every other passage on the horizontal plane and the angle of passing between the settling chamber radius at each center, outlet.Coal gas and air form eddy flow in settling chamber like this, so just can guarantee that coal gas was just all fully burnt before entering checker work grillage, and be evenly distributed on the checker work grillage.
Blast funnace hot blast stove is the large high-temperature device, needs a large amount of construction investments.Therefore, be to use the life-span long, thereby reduce repair expense the major requirement of hotblast stove.By this requirement, just there are a series of defectives in internal combustion type that people are familiar with and outside combustion stove.
Hotblast stove is a kind of heat accumulating type device.Its main characteristics are periodic duties.Will send coal gas and air into settling chamber the heating period at hotblast stove, and coal gas heats checker work grillage with its combustionmaterial in the burning of dome bottom.At the hotblast stove blasting period, stop to give gas and air, and from the hotblast stove bottom to the checker work grillage transporting cold wind, cold wind is heated in checker work grillage, enters the dome bottom, is transported in the blast furnace by heating duct then.In heating period, in coal gas and air header, send into cooled coal gas and freezing air respectively, the masonry in the collector zone also is cooled like this.At blasting period, coal gas and air are cut off, and the masonry in settling chamber and collector zone is heated.In heating period subsequently, the masonry in collector zone is again by cooled coal gas and chilled air cools.
At the hotblast stove blasting period with between heating period, keep apart because of leaning on the higher settling chamber inner chamber of settling chamber liner coal gas that temperature is minimum and air header and temperature, therefore, will produce the temperature difference of maximum along the thickness of settling chamber liner vertical side wall.Because periodic temperature variation, the masonry of settling chamber vertical side wall will produce periodic expansion, thereby cause bigger thermal stresses.Through after the operation of long period, on vertical side wall, will produce the crack, settling chamber can be damaged, and hotblast stove is stopped production repair.
Another vitals of settling chamber is the partition wall between coal gas collector and the air header.The coal gas that joins when the side wall that enters the settling chamber inner chamber is in top temperature and with shell and the liner of air header are compared, and partition wall will often be in the effect of stress in bending owing to settling chamber interior wall temperature significantly increases.The regular periodicity temperature variation that interior wall produces between heating period and blasting period can cause the partition wall between the collector to be damaged, thereby causes coal gas and air mixing and burning in collector, and settling chamber and hotblast stove are damaged.
Summary of the invention
The purpose of this invention is to provide a kind of hotblast stove, can improve under the condition of high temperature hotblast stove work-ing life, need not repair for a long time, thereby reduce the working cost of hotblast stove.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of hotblast stove, comprise shell, checker brick, dome, heating duct joint and the settling chamber of being with liner, the heating duct joint is positioned at checker work grillage top, and the distance from checker work grillage to the heating duct medullary ray is not less than the length of the diameter of heating duct channel cross-section.Settling chamber is positioned at dome top, and it is concentric with dome, settling chamber shell band liner, and be independent of the dome liner, independently bracing or strutting arrangement and dome are arranged in the settling chamber shell, coal gas and air header are installed in the liner under the settling chamber shell one on the other, it has partition wall each other, pass the liner of the inlet tube of coal gas and air between shell and collector, coal gas and air passageways are arranged in settling chamber liner vertical side wall, the medullary ray of upward arranging each passage from lower header is all aimed at the settling chamber medullary ray, and the angle of upward and horizontal plane is about 30 degree, and be the 15-30 degree at the medullary ray of all other passages on the horizontal plane and the angle of passing between the settling chamber radius at each center, outlet, the liner of settling chamber vertical side wall is divided into separate two portions with vertical lap seam, the main stor(e)y of settling chamber dome liner is supported on the inside part of settling chamber vertical side wall, and the dividing wall between coal gas and the air header is supported on the Outboard Sections of settling chamber vertical side wall in a side, on opposite side then is supported on liner between shell and coal gas and the air header.
With vertical lap seam the vertical side wall of settling chamber liner is divided into two portions that separate two portions can make the vertical side wall that medial temperature has nothing in common with each other, when temperature variation, expands separately, be independent of each other; So just can reduce the thermal stresses in the settling chamber vertical side wall masonry, thereby increase the intensity and the work-ing life of settling chamber.
The dome of settling chamber two-layerly is made of main and auxiliary.Main stor(e)y has weight-bearing function, builds by laying bricks or stones with closely knit refractory brick.Supplementary layer has adiabatic function, builds by laying bricks or stones with light fire brick.The main stor(e)y of settling chamber dome liner is not to be bearing in fully on the settling chamber side wall, but only is bearing in its inside part, so just can not cause the crooked and damage of dome supporting refractory brick, thereby increases the life-span of dome.
Partition wall between coal gas and the air header be bearing in the Outboard Sections of the vertical side wall liner that joins with coal gas and air header and the liner that joins with the collector of shell one side on, so just provide a best operating condition for partition wall.Because the medial temperature of the two-layer wall of the liner that joins with collector will be very approaching, when temperature variation, the swell increment of two-layer wall is also very approaching, so just can reduce the bending force to partition wall, thereby increases the work-ing life of partition wall.
Owing on the structure of hotblast stove, taked above-mentioned measure, thereby can reduce the thermal stresses in the settling chamber masonry greatly, and then reduced the breakage of masonry, increased the work-ing life of hotblast stove.
Description of drawings
Describe the present invention in detail below by drawings and Examples, in the accompanying drawing:
Fig. 1-according to the vertical cross section of facing of the top combustion stove of the preferred embodiment of the present invention.The supposition of coal gas and air supply pipe joint and heating duct joint is arranged at grade among the figure;
The sectional view of Fig. 2-dissect along the I-I line of Fig. 1.
Embodiment
Hotblast stove of the present invention comprises: shell 1, checker work grillage 3, heating duct joint 4, the dome 5 of band liner 2 are positioned at dome top, and settling chamber 6 concentric with it, the shell 7 of settling chamber and liner 8, the settling chamber liner is independent of the dome liner, and independent supporting device 9 is arranged in shell 7.Heating duct joint 4 is positioned at checker work grillage 3 tops, and the distance from checker work grillage to the heating duct medullary ray is not less than the length of the diameter of heating duct channel cross-section.Be furnished with gas flue 11 and air passageways 12,13 in the vertical side wall 10 of settling chamber 6, be connected with air supply pipe 17 with air header 15 and gas supply pipe 16 with the coal gas collector 14 of inside respectively.Coal gas and air passageways 11,12 and pass its discharge outlet radius centered and be β=30 ° of angles of 15 ÷, be arranged on the horizontal plane.Aiming at the medullary ray of hotblast stove 18 and be arranged to upward and angle horizontal plane from the medullary ray of the passage 13 of going up row of lower header 15 is about 30 °.Preferably as shown in fig. 1, top is the coal gas collector, and the bottom is an air header.Certainly, also can be opposite, top is air header, the bottom is the coal gas collector.
The vertical side wall 10 of settling chamber 6 is made up of two-layer separate part: inside part 20 and Outboard Sections 21.Each other separately by vertical lap seam 19.The main stor(e)y 22 of settling chamber 6 liners 8 domes is bearing on the inside part 20 of settling chamber 6 vertical side walls 10.Partition wall 23 between coal gas collector 14 and the air header 15 is at the Outboard Sections 21 of a side settling chamber 6 vertical side walls 10, and opposite side then is bearing on the liner 24 between coal gas collector 14 and air header 15 and the shell 7.
Above-mentioned hotblast stove has advantage in essence.Its mode of operation is as follows:
Enter air header 15 at hotblast stove combustion air heating period along pipeline 17.Air header 15 is arranged in settling chamber 6, between the body of wall 21 and 24 of the liner 8 below coal gas collector 14.Air enters settling chamber 6 by passage 12,13 then.Coal gas enters coal gas collector 14 along pipeline 16, enters settling chamber 6 by passage 11 then.Coal gas collector 14 is arranged in the settling chamber 6, between the body of wall 21 and 24 of the liner above the air header 15.The air that coal gas stream will be in the exit of gas flue 11 in the settling chamber 6 sucks, and is lighted at the heated masonry of blasting period on the top of settling chamber 6 then.When the direction of last emptying air-flow during along the upward about 30 ° of angles of radial direction, for coal gas and air in settling chamber 6 preliminary mixing and light the good condition of having created.Coal gas forms hot spiral-flow in settling chamber 6.Test-results on the flame assay platform shows that the temperature on settling chamber top can light coal gas fully.
Subsequently, air enters this eddy flow from passage 12 then from passage 13.Coal gas can produce burn intensively in settling chamber 6, show that in the test-results of flame assay platform coal gas is just burnouted fully at the middle part of dome 5 conical parts.
In this heating period, cooled coal gas and air enter coal gas collector 14 and air header 15 respectively, and body of wall 21 and 24 medial temperature will be minimum.The temperature of temperature in the settling chamber 6 and body of wall 20 will be very high.Because gas-fired is to carry out in settling chamber.Partition wall 23 also will be under the good operation condition, because body of wall 21 and 24 will be under about same medial temperature, the differential expansion between them will be very little.
At blasting period, stop in settling chamber 6, to give gas and air.Cold wind enters checker work grillage from the bottom, and passes through from checker work grillage, thereby is heated by checker work grillage.Hot blast after being heated enters dome 5 bottoms, delivers to the user by heating duct 4, in blast furnace.Be used to settling chamber be heated at blasting period from the radiation and the convection current of checker work grillage 3 and dome 5.Heated air enters coal gas collector 14 and air header 15 by passage 11,12,13.Body of wall 21 and 24 also will be heated, and their temperature will reach maximum value when blasting period finishes.But because they all enter coal gas collector 14 and air header 15, therefore when being heated, their medial temperature and swell value will be very approaching, so just can not cause damage to the partition wall 23 between coal gas collector 14 and the air header 15.Because vertical lap seam 19 is arranged, when the medial temperature between heating period and blasting period changed, the free expansion of body of wall 20 can not cause mutual damage to body of wall 20 and 21 yet.
Settling chamber 6 22 of dome master bearing stratums are bearing on the inside wall 20, and are not bearing on the whole vertical side wall 10, can increase the life-span of dome like this.Because the phenomenon that dome supporting refractory brick is twisted and damages can not take place in the swell value of body of wall 20 and 21 simultaneously.
Therefore, adopt the hotblast stove of the structure of the invention described above can in settling chamber liner 8, not cause and bigger thermal stresses also can not cause damage liner in the temperature variation of liner 8 each several parts of each working stage settling chamber 6.So just can improve the work-ing life of the top combustion stove of this structure, thereby reduce its maintenance cost.
The present invention not only can be used for the blast furnace blast heating in the Iron And Steel Industry, can also be used for power technology, thermophore (air, coal gas) can be heated to very high temperature.
Claims (1)
1. a hotblast stove comprises shell, checker brick, dome, heating duct joint and the settling chamber of being with liner, and the heating duct joint is positioned at checker work grillage top, and the distance from checker work grillage to the heating duct medullary ray is not less than the length of the diameter of heating duct channel cross-section.Settling chamber is positioned at dome top, and it is concentric with dome, settling chamber shell band liner, and be independent of the dome liner, independently bracing or strutting arrangement and dome are arranged in the settling chamber shell, coal gas and air header are installed in the liner under the settling chamber shell one on the other, it has partition wall each other, pass the liner of the inlet tube of coal gas and air between shell and collector, coal gas and air passageways are arranged in settling chamber liner vertical side wall, the medullary ray of upward arranging each passage from lower header is all aimed at the settling chamber medullary ray, and the angle of upward and horizontal plane is about 30 degree, and be the 15-30 degree at the medullary ray of all other passages on the horizontal plane and the angle of passing between the settling chamber radius at each center, outlet, the liner of settling chamber vertical side wall is divided into separate two portions with vertical lap seam, the main stor(e)y of settling chamber dome liner is supported on the inside part of settling chamber vertical side wall, and the dividing wall between coal gas and the air header is supported on the Outboard Sections of settling chamber vertical side wall in a side, on opposite side then is supported on liner between shell and coal gas and the air header.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2002103951 | 2002-02-18 | ||
| RU2002103951/02A RU2215792C1 (en) | 2002-02-18 | 2002-02-18 | Air heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1439726A true CN1439726A (en) | 2003-09-03 |
| CN1198944C CN1198944C (en) | 2005-04-27 |
Family
ID=27752124
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021570647A Expired - Fee Related CN1198944C (en) | 2002-02-18 | 2002-12-24 | Hot air stove |
Country Status (4)
| Country | Link |
|---|---|
| CN (1) | CN1198944C (en) |
| AU (1) | AU2003221221A1 (en) |
| RU (1) | RU2215792C1 (en) |
| WO (1) | WO2003071555A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100344772C (en) * | 2004-07-28 | 2007-10-24 | 山东省冶金设计院 | Top burning type hot blast stove with thermal insulation layer in precombustion chamber |
| CN100393890C (en) * | 2005-08-17 | 2008-06-11 | 山东省冶金设计院 | Hot blast furnace with mixed burner at top part |
| CN1680608B (en) * | 2004-04-06 | 2010-05-12 | 山东省冶金设计院 | External distributor style top-burning hot-air furnace |
| CN101707893B (en) * | 2007-07-09 | 2012-04-18 | 雅科夫·普罗科皮耶维奇·卡卢金 | Air heater |
| CN109402314A (en) * | 2017-08-16 | 2019-03-01 | 中冶京诚工程技术有限公司 | A kind of top burning type hot blast stove combustor |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100430649C (en) * | 2006-06-09 | 2008-11-05 | 中冶南方工程技术有限公司 | Flame length controllable high-efficient burner |
| UA95924C2 (en) * | 2008-05-12 | 2011-09-26 | Государственное Предприятие "Украинский Институт По Проектированию Металлургических Заводов" | Air heater for Blast furnace |
| RU2554239C1 (en) * | 2013-12-18 | 2015-06-27 | Закрытое Акционерное Общество "Калугин" | Shaftless air heater |
| EP3173696A1 (en) | 2015-11-30 | 2017-05-31 | Paul Wurth S.A. | Top combustion stove |
| RU193758U1 (en) * | 2016-11-04 | 2019-11-13 | Чжэнчжоу Аннек Индастриал Ко., Лтд | UPPER HEATER OF THE NEW MODEL COMBUSTION LOCATION UP |
| CN106766929B (en) * | 2016-12-26 | 2019-04-23 | 中国一冶集团有限公司 | Independent hot-blast stove on-bne repair Nai Cai transportation system and repair method |
| RU2736818C1 (en) * | 2020-05-01 | 2020-11-20 | Открытое акционерное общество "Научно-исследовательский институт металлургической теплотехники" (ОАО "ВНИИМТ") | Shaftless air heater |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU602555A1 (en) * | 1976-05-04 | 1978-04-15 | Всесоюзный научно-исследовательский институт металлургической теплотехники | Blast furnace air heater |
| SU926017A1 (en) * | 1979-07-30 | 1982-05-07 | Всесоюзный научно-исследовательский институт металлургической теплотехники | Blast furnace air heater |
| LU85029A1 (en) * | 1983-10-05 | 1985-06-19 | Wurth Paul Sa | FIREPLACE-FREE WINTER HEATER |
| SU1323571A1 (en) * | 1984-03-19 | 1987-07-15 | Всесоюзный научно-исследовательский институт металлургической теплотехники | Air stove |
-
2002
- 2002-02-18 RU RU2002103951/02A patent/RU2215792C1/en not_active IP Right Cessation
- 2002-12-24 CN CNB021570647A patent/CN1198944C/en not_active Expired - Fee Related
-
2003
- 2003-02-10 WO PCT/RU2003/000043 patent/WO2003071555A1/en not_active Application Discontinuation
- 2003-02-10 AU AU2003221221A patent/AU2003221221A1/en not_active Abandoned
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1680608B (en) * | 2004-04-06 | 2010-05-12 | 山东省冶金设计院 | External distributor style top-burning hot-air furnace |
| CN100344772C (en) * | 2004-07-28 | 2007-10-24 | 山东省冶金设计院 | Top burning type hot blast stove with thermal insulation layer in precombustion chamber |
| CN100393890C (en) * | 2005-08-17 | 2008-06-11 | 山东省冶金设计院 | Hot blast furnace with mixed burner at top part |
| CN101707893B (en) * | 2007-07-09 | 2012-04-18 | 雅科夫·普罗科皮耶维奇·卡卢金 | Air heater |
| CN109402314A (en) * | 2017-08-16 | 2019-03-01 | 中冶京诚工程技术有限公司 | A kind of top burning type hot blast stove combustor |
| CN109402314B (en) * | 2017-08-16 | 2024-01-16 | 中冶京诚工程技术有限公司 | Top combustion type hot blast stove burner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1198944C (en) | 2005-04-27 |
| AU2003221221A1 (en) | 2003-09-09 |
| RU2215792C1 (en) | 2003-11-10 |
| WO2003071555A1 (en) | 2003-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CI01 | Publication of corrected invention patent application |
Correction item: Application Date Correct: December 24, 2005 False: November 24, 2005 Number: 17 Page: 661 Volume: 21 |
|
| CI03 | Correction of invention patent |
Correction item: Application Date Correct: December 24, 2005 False: November 24, 2005 Number: 17 Page: The title page Volume: 21 |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICATION DATE; FROM: 2005.11.24 TO: 2005.12.24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: APPLICATION DATE; FROM: 2005.11.24 TO: 2005.12.24 |
|
| ASS | Succession or assignment of patent right |
Owner name: CALUKINA MARINA Free format text: FORMER OWNER: KALUGIN YAKOV PROKOPIEVICH Effective date: 20131106 Owner name: KALUGIN ALEXANDER LUDMILLA CALUKINA Effective date: 20131106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20131106 Address after: Russian Federation, Yekaterinburg Patentee after: Marina Kalukina Patentee after: Alexander Kalugin Patentee after: Lyudmila Kalukina Address before: Russian Federation, Yekaterinburg Patentee before: A.P. Caruking |
|
| 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: 20050427 Termination date: 20211224 |