NO175442C - Ringroms-sikringsventil - Google Patents

Ringroms-sikringsventil

Info

Publication number
NO175442C
NO175442C NO865354A NO865354A NO175442C NO 175442 C NO175442 C NO 175442C NO 865354 A NO865354 A NO 865354A NO 865354 A NO865354 A NO 865354A NO 175442 C NO175442 C NO 175442C
Authority
NO
Norway
Prior art keywords
annular
out preventer
preventer
Prior art date
Application number
NO865354A
Other languages
English (en)
Other versions
NO175442B (no
NO865354L (no
Inventor
James A Burton
Kenneth W Colvin
Julian D Keithahn
Original Assignee
Hydril Co
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
Priority claimed from US06/729,179 external-priority patent/US4605195A/en
Application filed by Hydril Co filed Critical Hydril Co
Publication of NO865354L publication Critical patent/NO865354L/no
Publication of NO175442B publication Critical patent/NO175442B/no
Publication of NO175442C publication Critical patent/NO175442C/no

Links

NO865354A 1985-05-01 1986-12-30 Ringroms-sikringsventil NO175442C (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/729,179 US4605195A (en) 1985-05-01 1985-05-01 Annular blowout preventer packing unit
PCT/US1986/000923 WO1986006436A1 (en) 1985-05-01 1986-04-28 Mechanical drive packer

Publications (3)

Publication Number Publication Date
NO865354L NO865354L (no) 1987-02-27
NO175442B NO175442B (no) 1994-07-04
NO175442C true NO175442C (no) 1994-10-12

Family

ID=26773620

Family Applications (1)

Application Number Title Priority Date Filing Date
NO865354A NO175442C (no) 1985-05-01 1986-12-30 Ringroms-sikringsventil

Country Status (1)

Country Link
NO (1) NO175442C (no)

Also Published As

Publication number Publication date
NO175442B (no) 1994-07-04
NO865354L (no) 1987-02-27

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