GB2294306B - Blocking fluid flow through a cable for an optical fibre - Google Patents

Blocking fluid flow through a cable for an optical fibre

Info

Publication number
GB2294306B
GB2294306B GB9418972A GB9418972A GB2294306B GB 2294306 B GB2294306 B GB 2294306B GB 9418972 A GB9418972 A GB 9418972A GB 9418972 A GB9418972 A GB 9418972A GB 2294306 B GB2294306 B GB 2294306B
Authority
GB
United Kingdom
Prior art keywords
tube
cable
fluid flow
optical fibre
plunger
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
GB9418972A
Other versions
GB9418972D0 (en
GB2294306A (en
Inventor
Peter David Jenkins
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.)
Miniflex Ltd
Original Assignee
Miniflex 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 Miniflex Ltd filed Critical Miniflex Ltd
Priority to GB9418972A priority Critical patent/GB2294306B/en
Publication of GB9418972D0 publication Critical patent/GB9418972D0/en
Publication of GB2294306A publication Critical patent/GB2294306A/en
Application granted granted Critical
Publication of GB2294306B publication Critical patent/GB2294306B/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
    • F16L55/124—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
    • F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
    • 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
    • F16K35/00—Means to prevent accidental or unauthorised actuation
    • F16K35/10—Means to prevent accidental or unauthorised actuation with locking caps or locking bars
    • 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
    • F16K7/20—Diaphragm valves or cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage ; Pinch valves with a compressible solid closure member
    • 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
    • F16L55/105—Closing devices introduced radially into the pipe or hose
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps
    • G02B6/44785—Cable clamps

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Pipe Accessories (AREA)

Abstract

To provide reversible sealing of the tube 32, 34, a device is incorporated between the ends of the tube which has a plunger 18 with a soft rubber foot 26 which can be pushed in to the tube cross-section, to block the tube. After a fibre or fibres 36 have been passed along the tube, the plunger is pushed in to form a seal across the tube cross-section and around the fibre. The plunger is normally retained by a collet in the pushed in position, but can be withdrawn from its gas blocking position by activating a release mechanism 28. <IMAGE>
GB9418972A 1994-09-21 1994-09-21 Blocking fluid flow through a cable for an optical fibre Expired - Fee Related GB2294306B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9418972A GB2294306B (en) 1994-09-21 1994-09-21 Blocking fluid flow through a cable for an optical fibre

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9418972A GB2294306B (en) 1994-09-21 1994-09-21 Blocking fluid flow through a cable for an optical fibre

Publications (3)

Publication Number Publication Date
GB9418972D0 GB9418972D0 (en) 1994-11-09
GB2294306A GB2294306A (en) 1996-04-24
GB2294306B true GB2294306B (en) 1998-01-07

Family

ID=10761645

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9418972A Expired - Fee Related GB2294306B (en) 1994-09-21 1994-09-21 Blocking fluid flow through a cable for an optical fibre

Country Status (1)

Country Link
GB (1) GB2294306B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1379805B1 (en) * 2001-03-14 2005-08-10 Yarra Valley Water Improved pipeline isolating device
FR2920887B1 (en) * 2007-09-07 2009-11-20 Legris Sa DEVICE FOR CONNECTING END OF GUIDE TUBES AND PROTECTING A CABLE
GB2498983B (en) 2012-02-01 2016-06-15 Stats (Uk) Ltd Pipe isolation for small bore pipe
GB2602652B (en) * 2021-01-08 2024-08-14 Reliance Worldwide Corporation Uk Ltd An end stop for a fibre optic cable tube

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB870187A (en) * 1958-03-04 1961-06-14 Frank Edward Swain Valves for controlling fluid flow
GB1127411A (en) * 1965-03-08 1968-09-18 Clipper Mfg Company Inc Concrete pump
US3907251A (en) * 1973-08-30 1975-09-23 Wilfred J Grenier Expansible plug valve
US3990677A (en) * 1973-08-30 1976-11-09 General Industries, Inc. Expansible plug valve
US4136852A (en) * 1975-08-14 1979-01-30 General Industries, Inc. Expansible plug valve
US4299255A (en) * 1979-04-16 1981-11-10 Miller John H Emergency pipeline shut-off apparatus
US4369813A (en) * 1981-01-26 1983-01-25 Kerotest Manufacturing Corp. Pipe stopper method and apparatus
US5267585A (en) * 1992-07-01 1993-12-07 Boc Health Care, Inc. Elastomeric flow control valve
GB2271623A (en) * 1992-10-17 1994-04-20 Uponor Aldyl Ltd Branch pipe connection

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB870187A (en) * 1958-03-04 1961-06-14 Frank Edward Swain Valves for controlling fluid flow
GB1127411A (en) * 1965-03-08 1968-09-18 Clipper Mfg Company Inc Concrete pump
US3907251A (en) * 1973-08-30 1975-09-23 Wilfred J Grenier Expansible plug valve
US3990677A (en) * 1973-08-30 1976-11-09 General Industries, Inc. Expansible plug valve
US4136852A (en) * 1975-08-14 1979-01-30 General Industries, Inc. Expansible plug valve
US4299255A (en) * 1979-04-16 1981-11-10 Miller John H Emergency pipeline shut-off apparatus
US4369813A (en) * 1981-01-26 1983-01-25 Kerotest Manufacturing Corp. Pipe stopper method and apparatus
US5267585A (en) * 1992-07-01 1993-12-07 Boc Health Care, Inc. Elastomeric flow control valve
GB2271623A (en) * 1992-10-17 1994-04-20 Uponor Aldyl Ltd Branch pipe connection

Also Published As

Publication number Publication date
GB9418972D0 (en) 1994-11-09
GB2294306A (en) 1996-04-24

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Legal Events

Date Code Title Description
746 Register noted 'licences of right' (sect. 46/1977)

Effective date: 20000711

PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090921