GB2200775B - Actuator for pipeline signalling device - Google Patents

Actuator for pipeline signalling device

Info

Publication number
GB2200775B
GB2200775B GB8701970A GB8701970A GB2200775B GB 2200775 B GB2200775 B GB 2200775B GB 8701970 A GB8701970 A GB 8701970A GB 8701970 A GB8701970 A GB 8701970A GB 2200775 B GB2200775 B GB 2200775B
Authority
GB
United Kingdom
Prior art keywords
actuator
pipeline
signalling device
signalling
pipeline signalling
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
GB8701970A
Other versions
GB8701970D0 (en
GB2200775A (en
Inventor
Kenneth Samuel Hemingway
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.)
International Pipeline Products Ltd
Original Assignee
International Pipeline Products Ltd
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 International Pipeline Products Ltd filed Critical International Pipeline Products Ltd
Priority to GB8701970A priority Critical patent/GB2200775B/en
Publication of GB8701970D0 publication Critical patent/GB8701970D0/en
Publication of GB2200775A publication Critical patent/GB2200775A/en
Application granted granted Critical
Publication of GB2200775B publication Critical patent/GB2200775B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
    • G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
    • G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
GB8701970A 1987-01-29 1987-01-29 Actuator for pipeline signalling device Expired - Lifetime GB2200775B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB8701970A GB2200775B (en) 1987-01-29 1987-01-29 Actuator for pipeline signalling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8701970A GB2200775B (en) 1987-01-29 1987-01-29 Actuator for pipeline signalling device

Publications (3)

Publication Number Publication Date
GB8701970D0 GB8701970D0 (en) 1987-03-04
GB2200775A GB2200775A (en) 1988-08-10
GB2200775B true GB2200775B (en) 1990-06-20

Family

ID=10611400

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8701970A Expired - Lifetime GB2200775B (en) 1987-01-29 1987-01-29 Actuator for pipeline signalling device

Country Status (1)

Country Link
GB (1) GB2200775B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6988556B2 (en) * 2002-02-19 2006-01-24 Halliburton Energy Services, Inc. Deep set safety valve
US7640989B2 (en) 2006-08-31 2010-01-05 Halliburton Energy Services, Inc. Electrically operated well tools
US8919730B2 (en) 2006-12-29 2014-12-30 Halliburton Energy Services, Inc. Magnetically coupled safety valve with satellite inner magnets
US8038120B2 (en) 2006-12-29 2011-10-18 Halliburton Energy Services, Inc. Magnetically coupled safety valve with satellite outer magnets
US7861665B2 (en) * 2007-05-11 2011-01-04 Tdw Delaware Inc. Pipeline pig signal with adjustable mounting
US8573304B2 (en) 2010-11-22 2013-11-05 Halliburton Energy Services, Inc. Eccentric safety valve
US8490687B2 (en) 2011-08-02 2013-07-23 Halliburton Energy Services, Inc. Safety valve with provisions for powering an insert safety valve
US8511374B2 (en) 2011-08-02 2013-08-20 Halliburton Energy Services, Inc. Electrically actuated insert safety valve

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407815A (en) * 1972-05-12 1975-09-24 Pipeline Eng Supply Co Ltd Signalling devices

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1407815A (en) * 1972-05-12 1975-09-24 Pipeline Eng Supply Co Ltd Signalling devices

Also Published As

Publication number Publication date
GB8701970D0 (en) 1987-03-04
GB2200775A (en) 1988-08-10

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 20070128