CN103363240A - Rubber hose with electric heat tracking structure - Google Patents
Rubber hose with electric heat tracking structure Download PDFInfo
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- CN103363240A CN103363240A CN2013103415223A CN201310341522A CN103363240A CN 103363240 A CN103363240 A CN 103363240A CN 2013103415223 A CN2013103415223 A CN 2013103415223A CN 201310341522 A CN201310341522 A CN 201310341522A CN 103363240 A CN103363240 A CN 103363240A
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- Prior art keywords
- electrical tracing
- heat
- rubber hose
- cable
- layer
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 30
- 239000005060 rubber Substances 0.000 title claims abstract description 30
- 239000003292 glue Substances 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 5
- 239000010410 layer Substances 0.000 description 48
- 239000000047 product Substances 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 8
- 238000004804 winding Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000002528 anti-freeze Effects 0.000 description 2
- 230000036760 body temperature Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000009931 harmful effect Effects 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000012552 review Methods 0.000 description 2
- 238000005987 sulfurization reaction Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 229920003051 synthetic elastomer Polymers 0.000 description 2
- 239000005061 synthetic rubber Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000013022 formulation composition Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000001550 time effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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- Rigid Pipes And Flexible Pipes (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a rubber hose with an electric heat tracking structure. The self-regulating electric heat tracking structure is arranged in a hose body. The rubber hose has the advantages of being simple to operate, convenient to use, and capable of keeping automatic temperature balance.
Description
Technical field
The invention belongs to the rubber product technical field, relate to a kind of rubber hose of charged companion's heat structure.
Background technique
In the use of in the past high-pressure slurry pipe and low-pressure hydraulic pipe, all be not with the high pressure rubber hose of electric heat tracing device.All be to require to produce according to international standard, NBS and american petroleum institute standard in the production of rubber hose, serviceability temperature is-20 ℃～100 ℃ usually, and it is no problem that flexible pipe uses under this temperature.The Environmental Conditions that meets in actual use most regions, but in the use of cold region, because ambient temperature is low, the mud of conveying or cement slurry can freeze as being trapped in for a long time in the pipeline, cause the conveying obstacle in the pipeline.For addressing this problem, common operation is the mud in the pipeline all must be removed totally when inactive, comprises detaching pipelines, very trouble is bothersome, in case barrier quits work for some reason, cause pipeline to freeze after, need to adopt steam to blow or coil steam tube and solve at flexible pipe.
At the hydraulic product that is used in the past, owing to do not possess the conducting self-heating device, in the working environment of cold, pipeline often is in and condenses or icing state, cause Pipeline transport to be subject to blocking phenomenon, deal with and bother very much time-consumingly, cause probing can not carry out when being operated in cold, or adopt numerous and diverse external insulation measure.
Body in design in the past comprises inner glue layer, interior carcass, wire rope layer, mesoglea, outer carcass and outer glue-line from inside to outside successively, and these products are used for the high pressure probing and carry drilling mud, do not possess the effect of companion's heat.
Patent application 200910067040.7, utilize the heating of switching on of two enhancement layers in the composite pipe, and be isolation layer between two enhancement layers, the description of this patent application and Placement are the purposes that can not realize the flexible pipe heating, backward, even if can heat flexible pipe, owing to be as the directly plugged heating of positive and negative level by two enhancement layers, in case the words that the heating function of enhancement layer damages, just whole enhancement layer must be Removed All, composite pipe is repacked waste material and replacing formality trouble.
Summary of the invention
The object of the present invention is to provide a kind of rubber hose of charged companion's heat structure, the present invention is provided with a kind of automatic temperature-control electric heating belt in hose construction, make and keep certain temperature in the pipeline, utilize generate heat the autocontrol performance of semiconductive plastics make in the pipeline temperature maintenance constant, thoroughly solve the pipeline temperature and kept problem, and the pipeline smooth in appearance is clean and tidy, and is safe and reliable in the use, can use in any hazardous location.
The present invention adopts following technological scheme:
A kind of rubber hose of charged companion's heat structure is provided with temp auto-controlled electrical tracing structure in the body.
Wherein, described temp auto-controlled electrical tracing structure comprises electrical tracing wire or cable terminal box, electrical tracing cable, electrical tracing cable tail wiring box, the electrical tracing wire or cable terminal box is arranged on the body outside and connects power supply, the electrical tracing cable laying is in body, and electrical tracing cable tail wiring box is located at the body afterbody and electrical tracing cable afterbody is connected.
Wherein, electrical tracing cable interval is wrapped on the body.The mode that twine at the interval can be so that even to the heat tracing effect of flexible pipe.
Wherein, electrical tracing cable interval is wrapped in the pitch 200mm-250mm on the body.This distance so that the electrical tracing cable can heat rubber hose uniformly, rubber hose is heated evenly, and the heat that the electrical tracing cable produces neither can produce harmful effect to adjacent electrical tracing cable itself, can not affect the working life of electrical tracing cable, it is excessive also can not to produce heating area, produces the shortage of heat phenomenon.Electrical tracing cable spacing is too large, and rubber hose is heated inhomogeneous, and electrical tracing cable spacing is too little, and the heat that the electrical tracing cable produces can produce harmful effect to adjacent electrical tracing cable itself, shortens the working life of electrical tracing cable.
Wherein, the structure of body is followed successively by inner glue layer, interior carcass, mesoglea, wire rope layer, carcass, heat-conducting layer, outer protection layer of cloth, outer glue-line from the inside to the outside.This structure is suitable for doing high pressure rubber hose.
Wherein, the structure of body is followed successively by inner glue layer, interior carcass, heat-conducting layer, outer protection layer of cloth, outer glue-line from the inside to the outside.This structure is suitable for doing the low pressure rubber hose.
Wherein, the electrical tracing cable is fixed in the heat-conducting layer.Can guarantee that like this electrical tracing cable is at will not mobile, twisted phenomena do not occur, thereby the suitable heat of spacing that can guarantee the electrical tracing cable be suitable.
The present invention adopts and bury heat-conducting layer underground in high voltage bearing body, and in heat-conducting layer the fixing strategy of electrical tracing cable, the method that the electrical tracing cable adopts the interval to twine, in certain area, twine the technology of an amount of electrical tracing cable, both the directly discharge on the equipment pipeline was tropical in difference and the existing patent, also be different from living heat structure is set in flexible pipe, because no matter be directly to place the ribbon heater or living heat engine structure is set in flexible pipe, these two kinds of structures all are easy to damage.
The present invention relates to the high pressure rubber hose of the charged companion's heat structure of a class, be mainly used in the probing on ocean, land or the medium transport of petrochemical industry, solve preservation and controlling and antifreeze processing in the medium transport.Product has the bearing capacity height, media-resistant swelling and wearing and tearing, and crooked flexible, temp auto-controlled satisfies the characteristics of pipeline requirement, can become the essential flexible conduit of cold frozen ground band probing and medium transport.
The present invention relates to the low pressure rubber hose of another kind of charged companion's heat structure, being mainly used in is for the conveying in the raw material supplying of marine drilling platform probing and the medium transport of engineering machinery and Petro-Chemical Machinery industry, solves especially preservation and controlling and antifreeze processing in the medium transport.Product has safe and reliable characteristics easy to use, media-resistant swelling and wearing and tearing, and crooked flexible, temp auto-controlled satisfies the characteristics of pipeline requirement, can become the essential flexible conduit of cold frozen ground territory medium transport.
The invention discloses a kind of electrically heat tracing structure and technique of rubber hose, solved high pressure and low pressure two class flexible pipes the condensing and ice formation issues of the medium transport of cold season, for Pipeline transport provides multi-functional flexible hose of new generation.
Description of drawings
Fig. 1 is the structural representation of the rubber hose of charged companion's heat structure;
Fig. 2 is the sectional view of the high pressure rubber hose of charged companion's heat structure;
Fig. 3 is the sectional view of the low pressure rubber hose of charged companion's heat structure;
Wherein: 1, metal joint, 2, the electrical tracing wire or cable terminal box, 3, body; 4, electrical tracing cable, 5, electrical tracing cable tail wiring box, 6 connect connector lugs; 7, inner glue layer; 8, interior carcass, 9, mesoglea, 10, the wire rope layer; 11, carcass; 12, heat-conducting layer, 13, outer protection layer of cloth, 14, outer glue-line.
Embodiment
Describe the present invention below in conjunction with accompanying drawing in detail by specific embodiment:
At first each parts in the accompanying drawing are described:
1, metal joint
Metal joint is the important component part of hose assembly, and it is body and the bridge that connects of equipment, is comprised of two-part, internally connects with body and seal, and external and equipment connection and its sealing, configuration should meet the connection requirement of relevant criterion.
2, electrical tracing wire or cable terminal box
Ask the input of selecting suitable termination to finish electricity according to environment, the control electric weight reaches suitable temperature requirements.
3, body
Body is the total main body of flexible pipe, bears the medium transport task, has media-resistant and corrodes, and pressure medium is born in the media-resistant wearing and tearing, finishes the medium transport task.
4, electrical tracing cable
Select the cable of suitable model according to Environmental Conditions, select suitable specification according to temperature design, temperature is made it, the paving mode of the winding spacing that configuration suits according to heating area and control cable, it is applied on body well-behavedly, torsion phenomenon do not occur.
5, electrical tracing cable tail wiring box
Be arranged on the body afterbody and the cable afterbody is connected processing.
6, connect connector lug
Be used for connecting plugged.
7, inner glue layer
Inner glue layer is the part of body bearing medium, usually 3-5mm is thick, be the erosion of Chemical composition in the reply mud, the abrasion of mud, select the high-quality synthetic rubber, through kind, prescription, the quantity optimization of compounding ingredient are determined formulation composition, and to its optimization checking of carrying out media-resistant, guarantee wear-resistant, the medium-resistance of sebific duct, make sebific duct in the situation of ultrahigh pressure, also can not leak fed sheet of a media.
8, interior carcass
Interior carcass adopts canvas of chemical fibre or cord, and general 2-8 layer plays dispersive stress in the high pressure product structure in structure, bears the function of longitudinal pulling force.Be the main body that body bears pressure loading in the low-pressure product structure, adopt nylon, polyester canvas or cord, behind gluing, be used for pipe structure.
9, mesoglea
The general 3-7 layer of mesoglea, every layer of 1～3mm is thick, and interlayer is present in inside and outside both sides and the centre of each wire rope layer, and the wire rope layer is carried out bonding and liner, makes the pressure-bearing framework layer of multilayer wire rope composition not loose, does not denude, and it is whole to become a carrying.
10, steel wire or wire rope layer
According to the body specification, select 2-8 layer steel wire or wirerope-winding to form the pressure-bearing framework layer, bear the load of working pressure.Adopt steel wire or wire rope all must satisfy the anti-burst pressure of flexible pipe, the bending radius of assurance flexible pipe makes it meet Environmental Conditions.
11, carcass
This carcass adopts canvas of chemical fibre, is set to the 1-3 layer, is used for fixing internal structure, liner electrical tracing cable.
12, heat-conducting layer
This layer is used for fixedly electrical tracing cable, and a heat conduction is with synthetic rubber and various compounding ingredient is mixing forms.
13, outer adhesive plaster
Outer adhesive plaster layer 2-4 for the protection of body and electrical tracing cable, prevents outer damage.
14, outer glue-line
General 2-6mm is thick for outer glue-line, wraps in the body periphery, rises and bears weather ageing, protection body safety effect, has antiultraviolet, the aging function of physical environment.
Embodiment 1: in high-pressure slurry pipe product structure, as shown in Figure 2:
Inner glue-line 4mm, 4 layers of interior adhesive plasters, 7 layers of mesoglea, 6 layers of cross winding of wire rope, 2 layers of carcass, electrical tracing cable model XTV-65, be fixed in the heat-conducting layer, winding pitch 200mm on body, fill with heat-conducting glue the centre, 2 layers of outer adhesive plasters, outer glue-line 4mm, warp is to formed product, winding, sulfuration, after the joint assembling, Product Acceptance Review meets the ISO14693 standard, and through energising test, the body temperature can be stablized for a long time and is controlled at 30 ± 10 ℃.
Embodiment 2: in the product structure of low pressure fuel pipe, as shown in Figure 3:
Inner glue-line 3mm, 6 layers of interior adhesive plasters, electrical tracing cable model XTV-45, be fixed in the heat-conducting layer, winding pitch 250mm on body, middle with heat-conducting glue filling, 2 layers of outer adhesive plasters, outer glue-line 4mm, warp is to formed product, winding, sulfuration, and after the joint assembling, Product Acceptance Review meets the ISO4079.1 standard, through energising test, the body temperature can be stablized for a long time and is controlled at 30 ± 10 ℃.
In a single day find that the heating effect of rubber pipe goes wrong in the use, can detect timely and conveniently the electrical tracing wire or cable terminal box, the electrical tracing cable tail wiring box that are arranged on the body outside, the parts that whether at first detect in two electrical tracing wire or cable terminal boxes break down, fix a breakdown than being easier to, it is also convenient to change component, need not whole heat-conducting layer is all replaced, saving material and replacing method are simple, the not use of president's time effects rubber pipe.By the fixing mode of electrical tracing cable in heat-conducting layer, obviously than directly in body, laying the ribbon heater or directly the mode that living hot charging is put being set in body, convenient during detection failure, environmental protection and saving more.
The invention solves easily freezing of high-pressure slurry Guan Zaihan frozen ground territory and block a difficult problem, the Environmental Conditions of pipeline is improved.For flexible pipe uses bringing great convenience property, probing and transfer efficiency have also been improved, for the user brings directly and indirectly efficient and benefit.
Enforcement of the present invention, has been eliminated numerous and diverse equipment appurtenance at vaporize ice the when drilling equipment that is through with uses in cold territory and the epoch of steam tracing.
Enforcement of the present invention makes flexible pipe in use convenient convenient, and cold freezing only needs plugged season, regulates temperature and comply with, and cutting off the electricity supply when environment is warm gets final product.
That product of the present invention has is simple to operate, easy to use, the characteristics of temperature autobalance, long service life.
Claims (7)
1. the rubber hose of charged companion's heat structure is characterized in that: be provided with temp auto-controlled electrical tracing structure in the body.
2. the rubber hose of a kind of charged companion's heat structure according to claim 1, it is characterized in that: described temp auto-controlled electrical tracing structure comprises electrical tracing wire or cable terminal box, electrical tracing cable, electrical tracing cable tail wiring box, the electrical tracing wire or cable terminal box is arranged on the body outside and connects power supply, the electrical tracing cable laying is in body, and electrical tracing cable tail wiring box is located at the body afterbody and electrical tracing cable afterbody is connected.
3. the rubber hose of a kind of charged companion's heat structure according to claim 2, it is characterized in that: electrical tracing cable interval is wrapped on the body.
4. the rubber hose of a kind of charged companion's heat structure according to claim 3, it is characterized in that: electrical tracing cable interval is wrapped in the pitch 200mm-250mm on the body.
5. the rubber hose of a kind of charged companion's heat structure according to claim 1, it is characterized in that: the structure of body is followed successively by inner glue layer, interior carcass, mesoglea, wire rope layer, carcass, electrical tracing cable, heat-conducting layer, outer protection layer of cloth, outer glue-line from the inside to the outside.
6. the rubber hose of a kind of charged companion's heat structure according to claim 1, it is characterized in that: the structure of body is followed successively by inner glue layer, interior carcass, heat-conducting layer, electrical tracing cable, outer protection layer of cloth, outer glue-line from the inside to the outside.
7. according to claim 2 to the rubber hose of 6 arbitrary described a kind of charged companion's heat structures, it is characterized in that: the electrical tracing cable is fixed in the heat-conducting layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341522.3A CN103363240B (en) | 2013-08-07 | 2013-08-07 | A kind of rubber hose of charged companion's heat structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341522.3A CN103363240B (en) | 2013-08-07 | 2013-08-07 | A kind of rubber hose of charged companion's heat structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103363240A true CN103363240A (en) | 2013-10-23 |
| CN103363240B CN103363240B (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310341522.3A Active CN103363240B (en) | 2013-08-07 | 2013-08-07 | A kind of rubber hose of charged companion's heat structure |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521447A (en) * | 2013-12-20 | 2015-06-24 | Technip France | A PIP trace heating connection assembly |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318705A (en) * | 2000-04-20 | 2001-10-24 | 孟庆义 | Floated pressure-resisting flexible electrothermal pipe |
| GB2368378A (en) * | 2000-09-14 | 2002-05-01 | Yokohama Rubber Co Ltd | Hose and deterioration measuring method of same |
| CN101858471A (en) * | 2010-05-31 | 2010-10-13 | 陕西建工集团总公司 | Electric tracing thermal insulation construction method for outdoor pipeline |
| CN202082550U (en) * | 2011-04-21 | 2011-12-21 | 北京富瑞雪科技发展有限公司 | Pipeline electric tracing thermal insulation device for compound fertilizer anticaking agent |
| CN203453700U (en) * | 2013-08-07 | 2014-02-26 | 山东悦龙橡塑科技有限公司 | Rubber hose with electrical tracing structure |
-
2013
- 2013-08-07 CN CN201310341522.3A patent/CN103363240B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1318705A (en) * | 2000-04-20 | 2001-10-24 | 孟庆义 | Floated pressure-resisting flexible electrothermal pipe |
| GB2368378A (en) * | 2000-09-14 | 2002-05-01 | Yokohama Rubber Co Ltd | Hose and deterioration measuring method of same |
| CN101858471A (en) * | 2010-05-31 | 2010-10-13 | 陕西建工集团总公司 | Electric tracing thermal insulation construction method for outdoor pipeline |
| CN202082550U (en) * | 2011-04-21 | 2011-12-21 | 北京富瑞雪科技发展有限公司 | Pipeline electric tracing thermal insulation device for compound fertilizer anticaking agent |
| CN203453700U (en) * | 2013-08-07 | 2014-02-26 | 山东悦龙橡塑科技有限公司 | Rubber hose with electrical tracing structure |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2521447A (en) * | 2013-12-20 | 2015-06-24 | Technip France | A PIP trace heating connection assembly |
| EP3084282B1 (en) * | 2013-12-20 | 2018-07-11 | Technip France | A pip trace heating connection assembly |
| US10350716B2 (en) | 2013-12-20 | 2019-07-16 | Technip France | PIP trace heating connection assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103363240B (en) | 2015-12-02 |
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Effective date of registration: 20170313 Address after: 261414 Laizhou, Shandong Ping Town resident Patentee after: Shandong Yue long Rubber Co.,Ltd. Address before: 261414 Shandong city of Yantai province Laizhou City Ping Li Zhen Patentee before: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. |
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Effective date of registration: 20171108 Address after: 261414 Laizhou, Shandong Ping Town resident Patentee after: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. Address before: 261414 Laizhou, Shandong Ping Town resident Patentee before: Shandong Yue long Rubber Co.,Ltd. |
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Denomination of invention: Rubber hose with charged heat tracing structure Effective date of registration: 20211116 Granted publication date: 20151202 Pledgee: Yantai Taiyue Fluid Technology Co.,Ltd. Pledgor: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2021980012505 |
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Date of cancellation: 20220607 Granted publication date: 20151202 Pledgee: Yantai Taiyue Fluid Technology Co.,Ltd. Pledgor: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2021980012505 |
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Denomination of invention: Rubber hose with electric heat tracing structure Effective date of registration: 20221104 Granted publication date: 20151202 Pledgee: Shandong Laizhou Rural Commercial Bank Co.,Ltd. Pinglidian Sub branch Pledgor: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2022980020841 |
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Address after: 261414 resident of Pinglidian Town, Laizhou City, Yantai City, Shandong Province Patentee after: Shandong Yuelong Rubber Technology Co.,Ltd. Address before: 261414, Shandong, Laizhou province Zhen Zhen resident Patentee before: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. |
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Granted publication date: 20151202 Pledgee: Shandong Laizhou Rural Commercial Bank Co.,Ltd. Pinglidian Sub branch Pledgor: SHANDONG YUELONG RUBBER AND PLASTIC TECHNOLOGY CO.,LTD. Registration number: Y2022980020841 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |