CN202917921U - 外方内圆双壁波纹管材 - Google Patents
外方内圆双壁波纹管材 Download PDFInfo
- Publication number
- CN202917921U CN202917921U CN 201220592667 CN201220592667U CN202917921U CN 202917921 U CN202917921 U CN 202917921U CN 201220592667 CN201220592667 CN 201220592667 CN 201220592667 U CN201220592667 U CN 201220592667U CN 202917921 U CN202917921 U CN 202917921U
- Authority
- CN
- China
- Prior art keywords
- square
- wall corrugated
- internal layer
- corrugated pipe
- round
- 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.)
- Ceased
Links
- 239000004743 Polypropylene Substances 0.000 claims description 8
- 229920001155 polypropylene Polymers 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 4
- 239000012943 hotmelt Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 11
- 238000009412 basement excavation Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 26
- 239000000463 material Substances 0.000 description 10
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- -1 polypropylene Polymers 0.000 description 5
- 229920001903 high density polyethylene Polymers 0.000 description 4
- 239000004700 high-density polyethylene Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Laying Of Electric Cables Or Lines Outside (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
Description
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592667 CN202917921U (zh) | 2012-11-12 | 2012-11-12 | 外方内圆双壁波纹管材 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220592667 CN202917921U (zh) | 2012-11-12 | 2012-11-12 | 外方内圆双壁波纹管材 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202917921U true CN202917921U (zh) | 2013-05-01 |
Family
ID=48166197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220592667 Ceased CN202917921U (zh) | 2012-11-12 | 2012-11-12 | 外方内圆双壁波纹管材 |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202917921U (zh) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838698A (zh) * | 2019-12-20 | 2020-02-25 | 杭州介通电缆保护管有限公司 | 双壁波纹八角管 |
| CN110906065A (zh) * | 2019-12-30 | 2020-03-24 | 广东统塑管业有限公司 | 一种外多边形增强波纹管及其成型工艺 |
-
2012
- 2012-11-12 CN CN 201220592667 patent/CN202917921U/zh not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110838698A (zh) * | 2019-12-20 | 2020-02-25 | 杭州介通电缆保护管有限公司 | 双壁波纹八角管 |
| CN110906065A (zh) * | 2019-12-30 | 2020-03-24 | 广东统塑管业有限公司 | 一种外多边形增强波纹管及其成型工艺 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. Assignor: Zhou Chengli Contract record no.: 2017520000003 Denomination of utility model: Double-wall corrugated tubing with square external and circular inner Granted publication date: 20130501 License type: Exclusive License Record date: 20170704 |
|
| EE01 | Entry into force of recordation of patent licensing contract | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180822 Address after: 561100 1, Longteng Road, Xia Yun Industrial Park, Pingba District, Anshun, Guizhou Patentee after: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: 337018 Maple Bay 34, Qianjin village, Xianggang Town, Xiangdong District, Pingxiang, Jiangxi Patentee before: Zhou Chengli |
|
| TR01 | Transfer of patent right | ||
| IP01 | Partial invalidation of patent right |
Commission number: 5W116728 Conclusion of examination: Claims 1-4 of utility model patent 201220592667.1 are declared invalid, and the patent right is maintained effective on the basis of claims 5 and 6 of the authorized announcement text. Decision date of declaring invalidation: 20190626 Decision number of declaring invalidation: 40741 Denomination of utility model: Double-wall corrugated tubing with square external and circular inner Granted publication date: 20130501 Patentee: KANGMINGYUAN (GUIZHOU) TECHNOLOGY DEVELOPMENT Co.,Ltd. |
|
| IP01 | Partial invalidation of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130501 |
|
| CX01 | Expiry of patent term | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20230522 Decision number of declaring invalidation: 561892 Granted publication date: 20130501 |
|
| IW01 | Full invalidation of patent right |