CN201819750U - Thermocouple or thermal resistor convenient for disassembly - Google Patents
Thermocouple or thermal resistor convenient for disassembly Download PDFInfo
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- CN201819750U CN201819750U CN2010202985698U CN201020298569U CN201819750U CN 201819750 U CN201819750 U CN 201819750U CN 2010202985698 U CN2010202985698 U CN 2010202985698U CN 201020298569 U CN201020298569 U CN 201020298569U CN 201819750 U CN201819750 U CN 201819750U
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- protective casing
- flange
- leak stopping
- cutting ferrule
- hole
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Abstract
The utility model relates to a thermocouple or a thermal resistor convenient for disassembly, comprising a flange and a temperature sensing element, wherein one end of the temperature sensing element extends into a protecting sleeve, and the other end is connected with a junction box. The temperature sensing element is sheathed with a support tube, the center of the flange is provided with a protecting sleeve mounting hole which is formed by connecting a counter bore, a tapered hole and a cylindrical hole; the counter bore is arranged on the lower plane of the flange; a convex disc propping against the counter bore is arranged on the outer wall of the protecting sleeve; a tapered positioning inclined surface matched with the tapered hole is arranged above the convex disc; the hole end of the protecting sleeve penetrates through the protecting sleeve mounting hole from the lower surface of the flange, and exposes out of the upper plane of the flange; the support tube props against the hole end of the protecting sleeve; and a splicing nut is arranged at the connecting part of the support tube and the hole end of the protecting sleeve. In the utility model, by adopting the tapered positioning and the thread fastening, the disassembly between the flange and the protecting sleeve is extremely convenient, and when the protecting sleeve is exchanged, the flange does not need to be changed, so that a large quantity of resources is saved. The flange can be made of materials with lower cost, thus reducing cost.
Description
Technical field
The utility model relates to occasionally thermal resistance of a kind of thermoelectricity, relates in particular to occasionally thermal resistance of a kind of easy-to-dismount thermoelectricity that reduces cost, economizes on resources.
Background technology
In essential industry production runes such as oil, chemical industry, metallurgy, electric power, measuring temperature with thermoelectric occasionally thermal resistance is the most general ways and means of contact type temperature sensor.Especially be in the chemical process of raw material with oil, coal, not only use generally, and consumption be very big.Particularly process high sulfur-bearing, high-acid crude oil, because the continuous variation of chemical analysis, thermometric requires more and more higher, and the thermometric environment is more and more abominable, to contact type temperature sensor thermoelectricity occasionally thermal resistance under the safe prerequisite of ensuring the quality of products, requirements at the higher level are proposed.Protective casing is the thermoelectric occasionally thermal resistance key in serviceable life; at present; thermoelectricity is thermal resistance protective casing material occasionally; international, the domestic austenitic stainless steel of always continuing to use; the connected mode of protective casing and flange, therefore international, the domestic welding manner that generally adopts exists the erosion corrosion in protective casing hot junction and the problems such as acid gas burn into hydrogen corrosion cracking in flange root weld zone; can not satisfy the actual production requirement, it is very big that quantity is changed in the cycle maintenance.Owing to all adopted flange and protective casing welded structure mutually originally; in order to guarantee welding quality; have to the employing of requirement flange and protective casing with a kind of material; the flange materials are twices of protective casing materials; in order to satisfy the needs of thermometric environment; the cost price of these materials is all very high, particularly adopts resistant to elevated temperatures nickel-base material.And change quantity big mainly be protective casing, in the time will changing protective casing,, flange and protective casing can only be changed together owing to flange and protective casing can't be taken apart, this just must waste materials is the flange material of protective casing twice.Therefore, original thermoelectricity is the thermal resistance structure occasionally, has not only increased the manufacturing production cost, has more wasted ample resources.
Summary of the invention
The utility model mainly solve original thermoelectricity occasionally in the thermal resistance flange and protective casing adopt welding connection structure, expensive material use amount is big, and in the time will changing protective casing, flange and protective casing can't be taken apart, can only change together, not only increase and make production cost, the technical matters of more wasting ample resources; Occasionally thermal resistance of a kind of easy-to-dismount thermoelectricity is provided; make that the dismounting between flange and the protective casing is very convenient; owing to do not adopt welding manner; flange can adopt the material that is different from protective casing; can adopt lower-cost material, when reduction manufacturing production cost, and needs is greatly changed protective casing; need not to change flange, saved ample resources.
Another purpose of the utility model is; got rid of the seam organization that causes because of welding technology simultaneously and heat-affected zone crystal grain is thick or inhomogeneous, because of the problems of welded quality such as unrelieved stress of the higher generation of weld hardness; solved the problem that ftractures because of the not acidproof gas corrosion of welding region, the corrosion of not anti-hydrogen; both improved rigidity, the intensity of protective casing, and made heatproof, corrosion resistant performance again also along with raising.
The utility model has solved the sealing problem after flange and protective casing adopt welding connection structure not again; Occasionally thermal resistance of a kind of easy-to-dismount thermoelectricity is provided, has multiple leak stopping function, under the special condition of severe of operating mode; even production period protective casing cracking or fracture; measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, the security performance height.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: the utility model comprises that an end is inserted in the blind hole of protective casing; the temperature-sensing element that the other end links to each other with terminal box; protective casing is installed on the flange; be arranged with support column on the temperature-sensing element between terminal box and the flange; described flange center is provided with the protective casing mounting hole that runs through flange; the protective casing mounting hole is by a counterbore; a bellmouth links to each other with a cylindrical hole and forms; counterbore is positioned at the lower plane of flange; the outer wall of described protective casing is provided with protruding dish; the outer wall of the protective casing of protruding dish top is a location tapered slope; the outer wall of the protective casing of tapered slope top, location is a cylindrical sides; the perforate end of protective casing passes protective casing mounting hole and protective casing below flange perforate end is exposed to the last plane of flange; described protruding dish and described counterbore offset; described location tapered slope and described bellmouth are complementary; the perforate end of described support column and described protective casing pushes up mutually, and the junction of the perforate end of support column and protective casing is provided with the assembly jack panel.The protruding dish of protective casing is stuck in the lower plane of flange; the perforate end of protective casing is affixed by the last plane of piecing together jack panel and flange, thereby realizes being connected of flange and protective casing, withstands on the perforate end by support column; guarantee sealing, also finish the connection and the installation of support column simultaneously.Adopt the taper location between flange and protective casing, good positioning effect, protective casing and flange can be good fit, help adding screw threads for fastening by the location taper between protective casing and the flange and form integral body.Temperature-sensing element generally adopts the armouring element.Flange and protective casing become dismountable two parts; cancelled traditional welding technology; therefore need not to consider that solder technology requires and the welding quality factor; flange can adopt the material that is different from protective casing; can select low cost; high-intensity structural alloy steel surface treatment material; the environment of low pressure seriously corroded can be selected the reinforced plastics material; flange can be extensively general according to national standard; protective casing can be selected the material of special high request according to the measured medium situation for use; reduce greatly and make production cost; and when need changing protective casing, need not to change flange, saved ample resources.The utility model can be common to generally that thermometric uses in all industrial production environments under the high, medium and low temperature and pressure, highly versatile, and it is wide to spread all over scope, can save a large amount of energy.
As preferably; the hole wall of the bellmouth of described protective casing mounting hole is provided with an elongated slot that is provided with to the vertex of a cone from the awl end; the location tapered slope of described protective casing is provided with a hemispherical groove; the position of hemispherical groove and described elongated slot is corresponding, is provided with place kick in the cavity that hemispherical groove and elongated slot surround.Because place kick not only is stuck in the hemispherical groove but also be stuck in the elongated slot; make that the relative position of flange and protective casing is just fixed when assembling; effectively prevent rotation piece together jack panel, leak stopping gland nut or and during other parts flange rotate, make between flange and protective casing, assembly jack panel compress tighter, be connected more firm.
As preferably; the inwall of the perforate end of described protective casing is provided with a shoulder; be provided with the two cutting ferrules of a leak stopping between the inwall of the perforate end of protective casing and the temperature-sensing element; the preceding cutting ferrule of the two cutting ferrules of leak stopping is sealed between the outer rim and temperature-sensing element of shoulder, and the back cutting ferrule of the two cutting ferrules of leak stopping is sealed between the inwall and temperature-sensing element of perforate end of protective casing.The two cutting ferrules of leak stopping play two-layer sealing function to the perforate end of protective casing, prevent that medium from leaking outside.Under the special condition of severe of operating mode, even production period protective casing cracking or fracture, measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, the security performance height.
As preferably; the preceding cutting ferrule of the two cutting ferrules of described leak stopping is the taper shape that has axis hole; this conical bottom is provided with a conical bore; the back cutting ferrule of the two cutting ferrules of described leak stopping was formed by a taper shape and cylindrical linking to each other; the center of back cutting ferrule is provided with axis hole; also link to each other with preceding cutting ferrule in the conical bore of cutting ferrule before the taper shape of back cutting ferrule extend into, the conical side of preceding cutting ferrule is pushed up mutually with the outer rim of described shoulder, and the cylindrical sides of back cutting ferrule is close to the inwall of the perforate end of protective casing.The perforate end of protective casing and preceding cutting ferrule, back cutting ferrule are surrounded by a cavity, play certain buffer action, weaken the impulse force that medium leaks, and improve sealing property.
As preferably, the lower end of described support column is provided with a boss, and the two cutting ferrules of the perforate end of boss and described protective casing and leak stopping push up mutually, are provided with the leak stopping gland nut between support column and the described assembly jack panel, and the leak stopping gland nut is pressed on the described boss.Enhancing is to the snap-in force of the perforate end of protective casing and the two cutting ferrules of leak stopping, and it is tightr that each parts is connected, and connects more firmly, and the anti-medium performance that leaks is better, plays the multiple protective effect.
The beneficial effects of the utility model are: because flange links to each other by piecing together jack panel with protective casing; adopt the location taper to add screw threads for fastening, make that the dismounting between flange and the protective casing is very convenient, when needing to change protective casing; need not to change flange, saved ample resources.Avoided in order to improve the problem that desired flange of welding quality and protective casing must adopt homogeneous material, flange can adopt the material that is different from protective casing, can adopt lower-cost material, reduces greatly and makes production cost.The quality problems of also having avoided welding to exist have been eliminated the problem that ftractures because of the not acidproof gas corrosion of welding region, the corrosion of not anti-hydrogen, have both improved rigidity, the intensity of protective casing, make heatproof, corrosion resistant performance also along with raising again.Simultaneously by adopting multiple leak stopping structure, even cracking or fracture take place the production period protective casing, measured medium can be toward external leakage yet, reaches the effect of not only antidetonation but also leak stopping, and security performance improves.
Description of drawings
Fig. 1 is a kind of sectional structure synoptic diagram of the present utility model.
Fig. 2 is the structure for amplifying synoptic diagram of A among Fig. 1.
Fig. 3 is a kind of broken section structural representation of protective casing in the utility model.
Fig. 4 is a kind of sectional structure synoptic diagram of flange in the utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: a kind of easy-to-dismount thermoelectricity of present embodiment is thermal resistance occasionally; as shown in Figure 1; comprise that an end is inserted in the blind hole 18 of protective casing 1 and with the hole of blind hole at the bottom of be close to, temperature-sensing element 3 that the other end links to each other with terminal box 2; protective casing 1 is installed on the flange 4; be with support column 19 on the temperature-sensing element 3 between terminal box 2 and the flange 4, temperature-sensing element 3 adopts the armouring element.There is the protective casing mounting hole 5 that runs through flange at flange 4 centers; as shown in Figure 4; protective casing mounting hole 5 is linked to each other with a cylindrical hole and is formed by a counterbore, a bellmouth, and counterbore is positioned at the lower plane of flange 4, and an elongated slot 15 that is provided with to the vertex of a cone from the awl end is arranged on the hole wall of bellmouth.Protruding dish 6 is arranged on the outer wall of protective casing 1; protruding dish is near the perforate end of protective casing; the outer wall of the protective casing 1 of protruding dish 6 tops is location tapered slope 14; as shown in Figure 3; the outer wall of the protective casing 1 of tapered slope 14 tops, location is cylindrical sides, on the tapered slope 14 of location a hemispherical groove 16 is arranged.The perforate end of protective casing passes protective casing mounting hole 5 and protective casing below flange 4 perforate end is exposed to the last plane of flange 4; the counterbore of protruding dish 6 and protective casing mounting hole 5 offsets; the bellmouth of location tapered slope 14 and protective casing mounting hole 5 is complementary; hemispherical groove 16 is corresponding with the position of elongated slot 15, in the cavity that hemispherical groove 16 and elongated slot 15 surround place kick 17 is housed.The inwall of the perforate end of protective casing has a shoulder 8; as shown in Figure 2; be plugged with the two cutting ferrules 9 of a leak stopping between the inwall of the perforate end of protective casing and the temperature-sensing element 3; the preceding cutting ferrule 10 of the two cutting ferrules 9 of leak stopping is the taper shape that has axis hole; a conical bore is arranged at this conical bottom; the back cutting ferrule 11 of the two cutting ferrules 9 of leak stopping was formed by a taper shape and cylindrical linking to each other; there is axis hole at the center of back cutting ferrule 11; before extending into, the taper shape of back cutting ferrule 11 also links to each other in the conical bore of cutting ferrule 10 with preceding cutting ferrule 10; the conical side of preceding cutting ferrule 10 is pushed up mutually with the outer rim of shoulder 8; the cylindrical sides of back cutting ferrule 11 is close to the inwall of the perforate end of protective casing 1; cutting ferrule 10 is sealed between the outer rim and temperature-sensing element 3 of shoulder 8 promptly; back cutting ferrule 11 is sealed between the inwall and temperature-sensing element 3 of perforate end of protective casing, plays dual plugging effect.There is a boss 12 lower end of support column 19; the two cutting ferrules 9 of the perforate end of boss 12 and protective casing and leak stopping push up mutually; there is the jack panel 7 of assembly the junction of the perforate end of support column 19 and protective casing; piecing together jack panel couples together support column 19 and protective casing 1; be screwed with leak stopping gland nut 13 between support column and the assembly jack panel 7, leak stopping gland nut 13 is pressed on the boss 12.
During dismounting, unscrew the leak stopping gland nut earlier, unscrew the assembly jack panel again, then the two cutting ferrules of leak stopping, temperature-sensing element are taken out in protective casing, at last the lower plane of protective casing from flange taken out, promptly finish the dismounting between flange and protective casing.
The length of the blind hole in the protective casing is for can accomplish 1000 millimeters, and the length of blind hole is in the time of 500 millimeters, and concentricity can accomplish 0.25%, and the length of blind hole is in the time of 750～1000 millimeters, and concentricity can accomplish 0.45%.Protective casing adopts whole rod iron precision die forging forming, highly difficult dark blind hole boring.Because Forging Technology optimized rod iron grain density performance, both improved protective casing just, intensity, make heatproof, corrosion resistant performance also along with raising again.Be positioned on the outer wall of protective casing of flange below and scribble corrosion-resistant, the anti abrasive protective seam that one deck is handled through metal surface composite ceramics modification.The main process of this technology is earlier aluminum melt heat to be applied to flange bottom and protective casing surface as tie coat; to be sprayed at product surface equably near nano level alundum (Al powder again; the final carbon dioxide laser scanning sintering that adopts makes coating and parent realize metallurgical binding.Can select the protective seam of different components, method at the requirement of measured medium, satisfy needs of production.
The utility model is owing to cancelled traditional welding technology; flange and protective casing become dismountable two parts; need not to consider that solder technology requires and the welding quality factor; flange can adopt the material that is different from protective casing; can select low cost, high-intensity structural alloy steel surface treatment material; the environment of low pressure seriously corroded can be selected the reinforced plastics material; protective casing can be selected the material of special high request according to the measured medium situation for use, and flange can be extensively general according to national standard.
Claims (6)
1. easy-to-dismount thermoelectricity thermal resistance occasionally; comprise that an end is inserted in the blind hole of protective casing (1) (18); the temperature-sensing element (3) that the other end links to each other with terminal box (2); protective casing (1) is installed on the flange (4); be arranged with support column (19) on the temperature-sensing element (3) between terminal box (2) and the flange (4); it is characterized in that described flange (4) center is provided with the protective casing mounting hole (5) that runs through flange; protective casing mounting hole (5) is by a counterbore; a bellmouth links to each other with a cylindrical hole and forms; counterbore is positioned at the lower plane of flange (4); the outer wall of described protective casing (1) is provided with protruding dish (6); the outer wall of the protective casing (1) of protruding dish (6) top is a location tapered slope (14); the outer wall of the protective casing (1) of location tapered slope (14) top is a cylindrical sides; the perforate end of protective casing (1) passes protective casing mounting hole (5) and protective casing (1) below flange (4) perforate end is exposed to the last plane of flange (4); described protruding dish (6) and described counterbore offset; described location tapered slope (14) and described bellmouth are complementary; described support column (19) pushes up mutually with the perforate end of described protective casing (1), and the junction of the perforate end of support column (19) and protective casing (1) is provided with pieces together jack panel (7).
2. a kind of easy-to-dismount thermoelectricity according to claim 1 is thermal resistance occasionally; the hole wall that it is characterized in that the bellmouth of described protective casing mounting hole (5) is provided with an elongated slot (15) that is provided with to the vertex of a cone from the awl end; the location tapered slope (14) of described protective casing (1) is provided with a hemispherical groove (16); hemispherical groove (16) is corresponding with the position of described elongated slot (15), is provided with place kick (17) in the cavity that hemispherical groove (16) and elongated slot (15) surround.
3. a kind of easy-to-dismount thermoelectricity according to claim 1 and 2 is thermal resistance occasionally; the inwall that it is characterized in that the perforate end of described protective casing (1) is provided with a shoulder (8); be provided with the two cutting ferrules (9) of a leak stopping between the inwall of the perforate end of protective casing (1) and the temperature-sensing element (3); the preceding cutting ferrule (10) of the two cutting ferrules (9) of leak stopping is sealed between the outer rim and temperature-sensing element (3) of shoulder (8), and the back cutting ferrule (11) of the two cutting ferrules (9) of leak stopping is sealed between the inwall and temperature-sensing element (3) of perforate end of protective casing (1).
4. a kind of easy-to-dismount thermoelectricity according to claim 3 is thermal resistance occasionally; the preceding cutting ferrule (10) that it is characterized in that the two cutting ferrules (9) of described leak stopping is the taper shape that has axis hole; this conical bottom is provided with a conical bore; the back cutting ferrule (11) of the two cutting ferrules (9) of described leak stopping was formed by a taper shape and cylindrical linking to each other; the center of back cutting ferrule (11) is provided with axis hole; the taper shape of back cutting ferrule (11) extend in the conical bore of preceding cutting ferrule (10) and links to each other with preceding cutting ferrule (10); the conical side of preceding cutting ferrule (10) is pushed up mutually with the outer rim of described shoulder (8), and the cylindrical sides of back cutting ferrule (11) is close to the inwall of the perforate end of protective casing (1).
5. a kind of easy-to-dismount thermoelectricity according to claim 1 and 2 is thermal resistance occasionally; the lower end that it is characterized in that described support column (19) is provided with a boss (12); boss (12) pushes up mutually with the perforate end of described protective casing (1); be provided with leak stopping gland nut (13) between support column (19) and the described assembly jack panel (7), leak stopping gland nut (13) is pressed on the described boss (12).
6. a kind of easy-to-dismount thermoelectricity according to claim 3 is thermal resistance occasionally; the lower end that it is characterized in that described support column (19) is provided with a boss (12); the two cutting ferrules (9) of the perforate end of boss (12) and described protective casing (1) and leak stopping push up mutually; be provided with leak stopping gland nut (13) between support column (19) and the described assembly jack panel (7), leak stopping gland nut (13) is pressed on the described boss (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202985698U CN201819750U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermal resistor convenient for disassembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202985698U CN201819750U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermal resistor convenient for disassembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819750U true CN201819750U (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202985698U Expired - Fee Related CN201819750U (en) | 2010-08-20 | 2010-08-20 | Thermocouple or thermal resistor convenient for disassembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819750U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630256A (en) * | 2013-06-27 | 2014-03-12 | 杭州亿泰自控设备有限公司 | Gasification furnace thermocouple and preparation method of thermocouple protection sleeve |
| CN104198070A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Detachable thermocouple |
| CN106918399A (en) * | 2017-04-20 | 2017-07-04 | 安徽春辉仪表线缆集团有限公司 | A kind of mounting structure of thermocouple |
| CN107560744A (en) * | 2017-09-26 | 2018-01-09 | 无锡英罗唯森科技有限公司 | Thermometer bushing device |
| CN110260990A (en) * | 2019-07-24 | 2019-09-20 | 巴斯夫新材料有限公司 | For measuring the thermocouple assembly of reactor temperature |
-
2010
- 2010-08-20 CN CN2010202985698U patent/CN201819750U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630256A (en) * | 2013-06-27 | 2014-03-12 | 杭州亿泰自控设备有限公司 | Gasification furnace thermocouple and preparation method of thermocouple protection sleeve |
| CN103630256B (en) * | 2013-06-27 | 2015-11-18 | 杭州亿泰自控设备有限公司 | The method for making of gasification oven thermocouple and thermocouple protective casing thereof |
| CN104198070A (en) * | 2014-08-26 | 2014-12-10 | 安徽蓝德仪表有限公司 | Detachable thermocouple |
| CN106918399A (en) * | 2017-04-20 | 2017-07-04 | 安徽春辉仪表线缆集团有限公司 | A kind of mounting structure of thermocouple |
| CN106918399B (en) * | 2017-04-20 | 2019-02-15 | 安徽春辉仪表线缆集团有限公司 | A kind of mounting structure of thermocouple |
| CN107560744A (en) * | 2017-09-26 | 2018-01-09 | 无锡英罗唯森科技有限公司 | Thermometer bushing device |
| CN110260990A (en) * | 2019-07-24 | 2019-09-20 | 巴斯夫新材料有限公司 | For measuring the thermocouple assembly of reactor temperature |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Hangzhou Intime Auto-system Co., Ltd. Assignor: Ding Xiduan|Ding Gang Contract record no.: 2013330000095 Denomination of utility model: Thermocouple or thermal resistor convenient for disassembly Granted publication date: 20110504 License type: Exclusive License Record date: 20130424 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fuyang the Fuchun River instrument factory of Hangzhou Assignor: Ding Xiduan|Ding Gang Contract record no.: 2017330000033 Denomination of utility model: Thermocouple or thermal resistor convenient for disassembly Granted publication date: 20110504 License type: Common License Record date: 20170401 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EM01 | Change of recordation of patent licensing contract |
Change date: 20170331 Contract record no.: 2013330000095 License type after: General permission License type before: Exclusive license |
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| EM01 | Change of recordation of patent licensing contract | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20170820 |
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| CF01 | Termination of patent right due to non-payment of annual fee |