GB2140894B - Sealing ducts - Google Patents

Sealing ducts

Info

Publication number
GB2140894B
GB2140894B GB08413015A GB8413015A GB2140894B GB 2140894 B GB2140894 B GB 2140894B GB 08413015 A GB08413015 A GB 08413015A GB 8413015 A GB8413015 A GB 8413015A GB 2140894 B GB2140894 B GB 2140894B
Authority
GB
United Kingdom
Prior art keywords
sealing ducts
ducts
sealing
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
GB08413015A
Other versions
GB8413015D0 (en
GB2140894A (en
Inventor
Alec Reginald Carruthers
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.)
ALH Systems Ltd
Original Assignee
ALH Systems 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
Priority claimed from GB838315198A external-priority patent/GB8315198D0/en
Application filed by ALH Systems Ltd filed Critical ALH Systems Ltd
Priority to GB08413015A priority Critical patent/GB2140894B/en
Publication of GB8413015D0 publication Critical patent/GB8413015D0/en
Publication of GB2140894A publication Critical patent/GB2140894A/en
Application granted granted Critical
Publication of GB2140894B publication Critical patent/GB2140894B/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
    • F16L55/10—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
    • F16L55/124—Means for stopping flow from or in pipes or hoses by introducing into the pipe a member expandable in situ introduced radially into the pipe or hose
    • 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
    • F16K7/00—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves
    • F16K7/10—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with inflatable member

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pipe Accessories (AREA)
GB08413015A 1983-06-02 1984-05-22 Sealing ducts Expired GB2140894B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08413015A GB2140894B (en) 1983-06-02 1984-05-22 Sealing ducts

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB838315198A GB8315198D0 (en) 1983-06-02 1983-06-02 Sealing pipes
GB08413015A GB2140894B (en) 1983-06-02 1984-05-22 Sealing ducts

Publications (3)

Publication Number Publication Date
GB8413015D0 GB8413015D0 (en) 1984-06-27
GB2140894A GB2140894A (en) 1984-12-05
GB2140894B true GB2140894B (en) 1986-07-02

Family

ID=26286284

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08413015A Expired GB2140894B (en) 1983-06-02 1984-05-22 Sealing ducts

Country Status (1)

Country Link
GB (1) GB2140894B (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2200710A (en) * 1986-12-03 1988-08-10 Shorco Trench Systems Limited Inflatable expandable device
DE3810515A1 (en) * 1988-03-28 1989-10-19 Gerd Goebel SEALING CUSHION FOR CLOSING OPENINGS AND CONTINUOUS
DE4031595A1 (en) * 1990-10-05 1992-04-09 Karl Sion SHUT-OFF DEVICE FOR CLOSING FLOW HOLES
NL9201477A (en) * 1992-08-19 1994-03-16 Beugen J Van Beheer Bv Device for closing the passage in a pipe.
US5285806A (en) * 1992-12-30 1994-02-15 Public Service Company Of Colorado Method and apparatus for temporarily sealing off pipelines
US5778919A (en) * 1993-12-30 1998-07-14 Custom Service Laboratories Of N.J., Inc. Pipeline flow stopper with dual shafts
SE502633C2 (en) * 1994-04-08 1995-11-27 Tigerholm Ab Method and apparatus for blocking fluid in a pressurized conduit
GB9920580D0 (en) * 1999-09-01 1999-11-03 Sarc Stopper Ltd Inflatable sealing device
MX337623B (en) * 2009-11-04 2016-03-11 Holcim Technology Ltd Duct plug inflatable safety device.
JP6895174B2 (en) * 2017-11-08 2021-06-30 クロダイト工業株式会社 Fluid shutoff airbag

Also Published As

Publication number Publication date
GB8413015D0 (en) 1984-06-27
GB2140894A (en) 1984-12-05

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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)
PE20 Patent expired after termination of 20 years

Effective date: 20040521