CN204627519U - 地下管柱膨胀封隔装置 - Google Patents
地下管柱膨胀封隔装置 Download PDFInfo
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- CN204627519U CN204627519U CN201520118142.8U CN201520118142U CN204627519U CN 204627519 U CN204627519 U CN 204627519U CN 201520118142 U CN201520118142 U CN 201520118142U CN 204627519 U CN204627519 U CN 204627519U
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- packing device
- intumescent material
- void layer
- inner fluid
- tubular mandrel
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CN201520118142.8U CN204627519U (zh) | 2015-02-27 | 2015-02-27 | 地下管柱膨胀封隔装置 |
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CN201520118142.8U CN204627519U (zh) | 2015-02-27 | 2015-02-27 | 地下管柱膨胀封隔装置 |
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CN204627519U true CN204627519U (zh) | 2015-09-09 |
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CN201520118142.8U Expired - Fee Related CN204627519U (zh) | 2015-02-27 | 2015-02-27 | 地下管柱膨胀封隔装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109248766A (zh) * | 2018-09-29 | 2019-01-22 | 山东大学 | 一种液压冲击胀管器及地下管道非开挖更换系统 |
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2015
- 2015-02-27 CN CN201520118142.8U patent/CN204627519U/zh not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109248766A (zh) * | 2018-09-29 | 2019-01-22 | 山东大学 | 一种液压冲击胀管器及地下管道非开挖更换系统 |
CN109248766B (zh) * | 2018-09-29 | 2024-01-26 | 山东大学 | 一种液压冲击胀管器及地下管道非开挖更换系统 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C41 | Transfer of patent application or patent right or utility model | ||
CB03 | Change of inventor or designer information |
Inventor after: Zheng Rongzhong Inventor before: Xiao Rui |
|
COR | Change of bibliographic data | ||
TR01 | Transfer of patent right |
Effective date of registration: 20160115 Address after: 324000 Xi'an Road, Quzhou, No. 156, Zhejiang Patentee after: QUZHOU MUNICIPAL GARDEN CO., LTD. Address before: 510640 Guangdong city of Guangzhou province Tianhe District gold Yinglu No. 1 Jin Ying building room 1106 Patentee before: Xiao Rui |
|
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: 20150909 Termination date: 20160227 |