CA676280A - Method and apparatus for closing pipelines - Google Patents

Method and apparatus for closing pipelines

Info

Publication number
CA676280A
CA676280A CA676280A CA676280DA CA676280A CA 676280 A CA676280 A CA 676280A CA 676280 A CA676280 A CA 676280A CA 676280D A CA676280D A CA 676280DA CA 676280 A CA676280 A CA 676280A
Authority
CA
Canada
Prior art keywords
closing pipelines
pipelines
closing
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.)
Expired
Application number
CA676280A
Inventor
J. Nevill Mason
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.)
Shell USA Inc
Original Assignee
Mason J Nevill
Shell Oil Co
Publication date
Application granted granted Critical
Publication of CA676280A publication Critical patent/CA676280A/en
Expired legal-status Critical Current

Links

CA676280A Method and apparatus for closing pipelines Expired CA676280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA676280T

Publications (1)

Publication Number Publication Date
CA676280A true CA676280A (en) 1963-12-17

Family

ID=35977362

Family Applications (1)

Application Number Title Priority Date Filing Date
CA676280A Expired CA676280A (en) Method and apparatus for closing pipelines

Country Status (1)

Country Link
CA (1) CA676280A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531550A (en) * 1982-07-21 1985-07-30 Yoshida Kogyo K.K. Plug for use in thermal-medium passages in air conditioning systems
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
US6745795B2 (en) 2001-11-23 2004-06-08 Enbridge Gas Distribution Inc. Method and device for plugging a gas main

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4531550A (en) * 1982-07-21 1985-07-30 Yoshida Kogyo K.K. Plug for use in thermal-medium passages in air conditioning systems
US5224516A (en) * 1992-07-23 1993-07-06 Mcgovern Victor J Pipe repair tool
US6745795B2 (en) 2001-11-23 2004-06-08 Enbridge Gas Distribution Inc. Method and device for plugging a gas main

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