GB2257766B - Obturating device - Google Patents

Obturating device

Info

Publication number
GB2257766B
GB2257766B GB9217793A GB9217793A GB2257766B GB 2257766 B GB2257766 B GB 2257766B GB 9217793 A GB9217793 A GB 9217793A GB 9217793 A GB9217793 A GB 9217793A GB 2257766 B GB2257766 B GB 2257766B
Authority
GB
United Kingdom
Prior art keywords
obturating device
obturating
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 - Fee Related
Application number
GB9217793A
Other versions
GB9217793D0 (en
GB2257766A (en
Inventor
Ian Ashcroft
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.)
British Gas PLC
Original Assignee
British Gas PLC
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 GB888830111A external-priority patent/GB8830111D0/en
Application filed by British Gas PLC filed Critical British Gas PLC
Priority to GB9217793A priority Critical patent/GB2257766B/en
Publication of GB9217793D0 publication Critical patent/GB9217793D0/en
Publication of GB2257766A publication Critical patent/GB2257766A/en
Application granted granted Critical
Publication of GB2257766B publication Critical patent/GB2257766B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16L55/10—Means for stopping flow from or in pipes or hoses
    • F16L55/12—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ
    • F16L55/128—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose
    • F16L55/132—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing
    • F16L55/134—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced axially into the pipe or hose the closure device being a plug fixed by radially deforming the packing by means of an inflatable packing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
GB9217793A 1988-12-23 1992-08-21 Obturating device Expired - Fee Related GB2257766B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9217793A GB2257766B (en) 1988-12-23 1992-08-21 Obturating device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB888830111A GB8830111D0 (en) 1988-12-23 1988-12-23 Method and system for enhancing service pipes
GB9217793A GB2257766B (en) 1988-12-23 1992-08-21 Obturating device

Publications (3)

Publication Number Publication Date
GB9217793D0 GB9217793D0 (en) 1992-10-07
GB2257766A GB2257766A (en) 1993-01-20
GB2257766B true GB2257766B (en) 1993-08-04

Family

ID=26294769

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9217793A Expired - Fee Related GB2257766B (en) 1988-12-23 1992-08-21 Obturating device

Country Status (1)

Country Link
GB (1) GB2257766B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2252383B (en) * 1991-01-29 1995-02-08 British Gas Plc A tool for blocking a portion of a pipe upstream of a bend
GB2324350B (en) * 1994-05-11 1998-11-25 British Gas Plc Pipe blocking technique
GB2306606A (en) * 1995-11-03 1997-05-07 Sean Adrian Macdonald Flow isolator for fluid systems
DE10245971A1 (en) * 2002-09-30 2004-04-01 Ebm Werke Gmbh & Co. Kg Electric motor with screwless plug-in assembly
GB2548403A (en) * 2016-03-17 2017-09-20 Trevor Hodgson Steven Removing and replacing an emergency control valve (ECV)
JP6450495B1 (en) * 2018-08-23 2019-01-09 六菱ゴム株式会社 Vent pipe closing device
CN109578722B (en) * 2018-11-14 2020-11-10 湖州师范学院 Multi-selection multi-channel pipeline switching device for bag type water quantity adjusting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB579129A (en) * 1940-03-14 1946-07-24 Gas Light & Coke Co Improvements relating to the stopping or sealing of gas mains
GB681448A (en) * 1950-02-06 1952-10-22 Percival Philip Leacock Improvements in apparatus for sealing drainpipes and like conduits prior to testing
GB1449995A (en) * 1973-07-12 1976-09-15 Airrigation Eng Injection of foam into a pipe

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB579129A (en) * 1940-03-14 1946-07-24 Gas Light & Coke Co Improvements relating to the stopping or sealing of gas mains
GB681448A (en) * 1950-02-06 1952-10-22 Percival Philip Leacock Improvements in apparatus for sealing drainpipes and like conduits prior to testing
GB1449995A (en) * 1973-07-12 1976-09-15 Airrigation Eng Injection of foam into a pipe

Also Published As

Publication number Publication date
GB9217793D0 (en) 1992-10-07
GB2257766A (en) 1993-01-20

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20031222