GB2205629B - Valve override mechanism - Google Patents

Valve override mechanism

Info

Publication number
GB2205629B
GB2205629B GB8712062A GB8712062A GB2205629B GB 2205629 B GB2205629 B GB 2205629B GB 8712062 A GB8712062 A GB 8712062A GB 8712062 A GB8712062 A GB 8712062A GB 2205629 B GB2205629 B GB 2205629B
Authority
GB
United Kingdom
Prior art keywords
override mechanism
valve override
valve
override
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 - Lifetime
Application number
GB8712062A
Other versions
GB8712062D0 (en
GB2205629A (en
Inventor
Murray Mcintosh
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.)
National Supply Co
NAT OILWELL
NAT SUPPLY CO
National Oilwell Varco LP
Original Assignee
National Supply Co
NAT OILWELL
NAT SUPPLY CO
National Oilwell LP
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 National Supply Co, NAT OILWELL, NAT SUPPLY CO, National Oilwell LP filed Critical National Supply Co
Priority to GB8712062A priority Critical patent/GB2205629B/en
Publication of GB8712062D0 publication Critical patent/GB8712062D0/en
Publication of GB2205629A publication Critical patent/GB2205629A/en
Application granted granted Critical
Publication of GB2205629B publication Critical patent/GB2205629B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
    • F16K31/122—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston
    • F16K31/1221—Actuating devices; Operating means; Releasing devices actuated by fluid the fluid acting on a piston one side of the piston being spring-loaded
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B34/00—Valve arrangements for boreholes or wells
    • E21B34/02—Valve arrangements for boreholes or wells in well heads
    • E21B34/04—Valve arrangements for boreholes or wells in well heads in underwater well heads
GB8712062A 1987-05-21 1987-05-21 Valve override mechanism Expired - Lifetime GB2205629B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8712062A GB2205629B (en) 1987-05-21 1987-05-21 Valve override mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8712062A GB2205629B (en) 1987-05-21 1987-05-21 Valve override mechanism

Publications (3)

Publication Number Publication Date
GB8712062D0 GB8712062D0 (en) 1987-06-24
GB2205629A GB2205629A (en) 1988-12-14
GB2205629B true GB2205629B (en) 1991-03-06

Family

ID=10617719

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8712062A Expired - Lifetime GB2205629B (en) 1987-05-21 1987-05-21 Valve override mechanism

Country Status (1)

Country Link
GB (1) GB2205629B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1304359B1 (en) * 1998-04-01 2001-03-15 Studio Tecnico Pier Giorgio To EQUIPMENT FOR BALLASTING SHIPS
GB0301068D0 (en) * 2003-01-17 2003-02-19 Pond Richard J Rotary gate valve actuator system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB867123A (en) * 1957-12-18 1961-05-03 Acf Ind Inc Manual operating means for piston operated valves
GB1002879A (en) * 1963-06-18 1965-09-02 Honeywell Gmbh Improvements in or relating to valve actuators
US3378224A (en) * 1965-06-28 1968-04-16 Otis Eng Co Well tools
US3765642A (en) * 1971-09-29 1973-10-16 Texas Iron Works Valve and actuator assembly
US4429592A (en) * 1981-06-05 1984-02-07 The Babcock & Wilcox Company Valve operator
US4696452A (en) * 1983-01-28 1987-09-29 Ebara Corporation Trip throttle valve

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB867123A (en) * 1957-12-18 1961-05-03 Acf Ind Inc Manual operating means for piston operated valves
GB1002879A (en) * 1963-06-18 1965-09-02 Honeywell Gmbh Improvements in or relating to valve actuators
US3378224A (en) * 1965-06-28 1968-04-16 Otis Eng Co Well tools
US3765642A (en) * 1971-09-29 1973-10-16 Texas Iron Works Valve and actuator assembly
US4429592A (en) * 1981-06-05 1984-02-07 The Babcock & Wilcox Company Valve operator
US4696452A (en) * 1983-01-28 1987-09-29 Ebara Corporation Trip throttle valve

Also Published As

Publication number Publication date
GB8712062D0 (en) 1987-06-24
GB2205629A (en) 1988-12-14

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920521