GB1278492A - Pipeline pig trap or launching unit - Google Patents

Pipeline pig trap or launching unit

Info

Publication number
GB1278492A
GB1278492A GB3947969A GB3947969A GB1278492A GB 1278492 A GB1278492 A GB 1278492A GB 3947969 A GB3947969 A GB 3947969A GB 3947969 A GB3947969 A GB 3947969A GB 1278492 A GB1278492 A GB 1278492A
Authority
GB
United Kingdom
Prior art keywords
pig
line
pipe
section
pigs
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
GB3947969A
Inventor
Douglas John Platts
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.)
General Descaling Co Ltd
Original Assignee
General Descaling Co 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 General Descaling Co Ltd filed Critical General Descaling Co Ltd
Priority to GB3947969A priority Critical patent/GB1278492A/en
Publication of GB1278492A publication Critical patent/GB1278492A/en
Expired 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/46—Launching or retrieval of pigs or moles
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1006—Making by using boring or cutting machines with rotary cutting tools
    • E21D9/1013—Making by using boring or cutting machines with rotary cutting tools on a tool-carrier supported by a movable boom

Abstract

1278492 Launching or trapping pipe-line pigs; closures for pipe-line wall openings GENERAL DESCALING CO Ltd 6 Aug 1969 39479/69 Headings F2N and F2P A device for introducing pigs G into or withdrawing pigs from a pipe-line comprises a tubular section 3, intended for connecting pipe-line ends P1, P2 after removal of the corresponding pipe-line section, section 3 being formed with a cut-out 4, a sleeve 6 movable from the position shown to a position covering the cut-out in a fluid-tight manner, and a pig launcher or trap 5 insertable into section 3 through the cut-out 4. The tubular pig launcher shown is open at both ends. If a pig is to be trapped and withdrawn from the pipe-line, one end of tube 5 is closed, Figs. 3 and 4 (not shown), and apertures for bypassing the fluid flow between the tube 5 and the sleeve 6 are provided. The closed end region of the trap is provided with a resilient pig buffer and with bleed holes for the fluid trapped between the end wall and an entering pig. Brushes (36, Fig. 3) may be mounted on the nose-piece of the pig.
GB3947969A 1969-08-06 1969-08-06 Pipeline pig trap or launching unit Expired GB1278492A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3947969A GB1278492A (en) 1969-08-06 1969-08-06 Pipeline pig trap or launching unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3947969A GB1278492A (en) 1969-08-06 1969-08-06 Pipeline pig trap or launching unit

Publications (1)

Publication Number Publication Date
GB1278492A true GB1278492A (en) 1972-06-21

Family

ID=10409776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3947969A Expired GB1278492A (en) 1969-08-06 1969-08-06 Pipeline pig trap or launching unit

Country Status (1)

Country Link
GB (1) GB1278492A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266097A2 (en) * 1986-10-23 1988-05-04 International Testing and Commissioning Ltd Pipeline pig launching and receiving apparatus
GB2196715A (en) * 1986-10-27 1988-05-05 British Gas Plc Method of launching a pig into a pipeline
GB2438415A (en) * 2006-05-24 2007-11-28 Oliver Twinsafe Valves Ltd A pig launcher or receiver device
RU2572127C1 (en) * 2014-09-26 2015-12-27 Открытое акционерное общество "Акционерная компания по транспорту нефти "Транснефть" (ОАО "АК "Транснефть") Kicking device intended for kicking of multisection intratubal fault detectors
US11624470B2 (en) * 2018-11-26 2023-04-11 Subsea 7 Norway As Diverting pigs in a pipeline or piping system
US11686416B2 (en) 2020-09-10 2023-06-27 Saudi Arabian Oil Company Temporary trap door cap

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0266097A2 (en) * 1986-10-23 1988-05-04 International Testing and Commissioning Ltd Pipeline pig launching and receiving apparatus
EP0266097A3 (en) * 1986-10-23 1989-03-22 International Testing and Commissioning Ltd Pipeline pig launching and receiving apparatus
GB2196715A (en) * 1986-10-27 1988-05-05 British Gas Plc Method of launching a pig into a pipeline
GB2196715B (en) * 1986-10-27 1990-06-06 British Gas Plc Method of launching a pig into a pipeline
GB2438415A (en) * 2006-05-24 2007-11-28 Oliver Twinsafe Valves Ltd A pig launcher or receiver device
RU2572127C1 (en) * 2014-09-26 2015-12-27 Открытое акционерное общество "Акционерная компания по транспорту нефти "Транснефть" (ОАО "АК "Транснефть") Kicking device intended for kicking of multisection intratubal fault detectors
US11624470B2 (en) * 2018-11-26 2023-04-11 Subsea 7 Norway As Diverting pigs in a pipeline or piping system
US11686416B2 (en) 2020-09-10 2023-06-27 Saudi Arabian Oil Company Temporary trap door cap

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee