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CA2952984A1 - Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil - Google Patents

Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil Download PDF

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Publication number
CA2952984A1
CA2952984A1 CA2952984A CA2952984A CA2952984A1 CA 2952984 A1 CA2952984 A1 CA 2952984A1 CA 2952984 A CA2952984 A CA 2952984A CA 2952984 A CA2952984 A CA 2952984A CA 2952984 A1 CA2952984 A1 CA 2952984A1
Authority
CA
Canada
Prior art keywords
holes
pipeline closure
notches
expansion body
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.)
Pending
Application number
CA2952984A
Other languages
English (en)
Inventor
Jui-Chi Fu
Nien-Chi Hung
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CA2952984A priority Critical patent/CA2952984A1/fr
Publication of CA2952984A1 publication Critical patent/CA2952984A1/fr
Pending legal-status Critical Current

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  • Arrangements For Transmission Of Measured Signals (AREA)
  • Pipeline Systems (AREA)
CA2952984A 2015-12-31 2016-12-29 Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil Pending CA2952984A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2952984A CA2952984A1 (fr) 2015-12-31 2016-12-29 Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN104221309 2015-12-31
CA2952984A CA2952984A1 (fr) 2015-12-31 2016-12-29 Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil

Publications (1)

Publication Number Publication Date
CA2952984A1 true CA2952984A1 (fr) 2017-06-30

Family

ID=59219075

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2952984A Pending CA2952984A1 (fr) 2015-12-31 2016-12-29 Construction amelioree de fermeture de canalisation avec systeme de positionnement et d'avertissement sans fil

Country Status (1)

Country Link
CA (1) CA2952984A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2568917A (en) * 2017-11-30 2019-06-05 Cniguard Ltd Monitor for underground infrastructure
CN110867056A (zh) * 2019-12-13 2020-03-06 深圳市沃尔核材股份有限公司 基于线缆管封堵器的远程监控系统及方法
US10684031B2 (en) 2016-03-31 2020-06-16 Novinium, Inc. Smart system for manhole event suppression system
US10962253B2 (en) 2015-06-05 2021-03-30 Novinium, Inc. Systems for circulating air inside a manhole vault
US11060754B2 (en) 2015-06-05 2021-07-13 Novinium, Inc. Ventilation system for manhole vault

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10962253B2 (en) 2015-06-05 2021-03-30 Novinium, Inc. Systems for circulating air inside a manhole vault
US11060754B2 (en) 2015-06-05 2021-07-13 Novinium, Inc. Ventilation system for manhole vault
US11561023B2 (en) 2015-06-05 2023-01-24 Novinium, Llc Ventilation system for manhole vault
US10684031B2 (en) 2016-03-31 2020-06-16 Novinium, Inc. Smart system for manhole event suppression system
US11346566B2 (en) 2016-03-31 2022-05-31 Novinium, Inc. Smart system for manhole event suppression system
US12173913B2 (en) 2016-03-31 2024-12-24 Novinium, Llc Smart system for manhole event suppression system
GB2568917A (en) * 2017-11-30 2019-06-05 Cniguard Ltd Monitor for underground infrastructure
CN110867056A (zh) * 2019-12-13 2020-03-06 深圳市沃尔核材股份有限公司 基于线缆管封堵器的远程监控系统及方法

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Date Code Title Description
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Effective date: 20191231