CA955915A - Pressure operated safety valve with lock means - Google Patents

Pressure operated safety valve with lock means

Info

Publication number
CA955915A
CA955915A CA187,721A CA187721A CA955915A CA 955915 A CA955915 A CA 955915A CA 187721 A CA187721 A CA 187721A CA 955915 A CA955915 A CA 955915A
Authority
CA
Canada
Prior art keywords
safety valve
lock means
pressure operated
operated safety
pressure
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
CA187,721A
Other versions
CA187721S (en
Inventor
James D. Mott
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.)
Hydril LLC
Original Assignee
Hydril LLC
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 CA134,890A external-priority patent/CA964998A/en
Application filed by Hydril LLC filed Critical Hydril LLC
Priority to CA187,721A priority Critical patent/CA955915A/en
Application granted granted Critical
Publication of CA955915A publication Critical patent/CA955915A/en
Expired legal-status Critical Current

Links

CA187,721A 1972-02-15 1973-12-07 Pressure operated safety valve with lock means Expired CA955915A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA187,721A CA955915A (en) 1972-02-15 1973-12-07 Pressure operated safety valve with lock means

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CA134,890A CA964998A (en) 1972-02-15 1972-02-15 Pressure operated safety valve with lock means
CA187,721A CA955915A (en) 1972-02-15 1973-12-07 Pressure operated safety valve with lock means

Publications (1)

Publication Number Publication Date
CA955915A true CA955915A (en) 1974-10-08

Family

ID=25666993

Family Applications (1)

Application Number Title Priority Date Filing Date
CA187,721A Expired CA955915A (en) 1972-02-15 1973-12-07 Pressure operated safety valve with lock means

Country Status (1)

Country Link
CA (1) CA955915A (en)

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