CA904748A - Inflatable safety shut-off for well bores or other openings - Google Patents

Inflatable safety shut-off for well bores or other openings

Info

Publication number
CA904748A
CA904748A CA904748A CA904748DA CA904748A CA 904748 A CA904748 A CA 904748A CA 904748 A CA904748 A CA 904748A CA 904748D A CA904748D A CA 904748DA CA 904748 A CA904748 A CA 904748A
Authority
CA
Canada
Prior art keywords
openings
well bores
safety shut
inflatable safety
inflatable
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
CA904748A
Inventor
C. Malone Billy
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.)
Lynes Inc
Original Assignee
Lynes Inc
Publication date
Application granted granted Critical
Publication of CA904748A publication Critical patent/CA904748A/en
Expired legal-status Critical Current

Links

CA904748A Inflatable safety shut-off for well bores or other openings Expired CA904748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA904748T

Publications (1)

Publication Number Publication Date
CA904748A true CA904748A (en) 1972-07-11

Family

ID=36412577

Family Applications (1)

Application Number Title Priority Date Filing Date
CA904748A Expired CA904748A (en) Inflatable safety shut-off for well bores or other openings

Country Status (1)

Country Link
CA (1) CA904748A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058903A (en) * 1989-06-16 1991-10-22 Redpath Raiseboring Limited Drill rod seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5058903A (en) * 1989-06-16 1991-10-22 Redpath Raiseboring Limited Drill rod seal

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