WO1998011373A3 - Organe de coupe - Google Patents

Organe de coupe Download PDF

Info

Publication number
WO1998011373A3
WO1998011373A3 PCT/GB1997/002432 GB9702432W WO9811373A3 WO 1998011373 A3 WO1998011373 A3 WO 1998011373A3 GB 9702432 W GB9702432 W GB 9702432W WO 9811373 A3 WO9811373 A3 WO 9811373A3
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
cutter
length
hole
leakage
Prior art date
Application number
PCT/GB1997/002432
Other languages
English (en)
Other versions
WO1998011373A2 (fr
Inventor
Malcolm Harold Hanson
David Trevor Atkin
Eric Bridgstock
Original Assignee
Fusion Group Plc
Malcolm Harold Hanson
David Trevor Atkin
Eric Bridgstock
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 Fusion Group Plc, Malcolm Harold Hanson, David Trevor Atkin, Eric Bridgstock filed Critical Fusion Group Plc
Priority to GB9904753A priority Critical patent/GB2336189A/en
Priority to AU41297/97A priority patent/AU4129797A/en
Publication of WO1998011373A2 publication Critical patent/WO1998011373A2/fr
Publication of WO1998011373A3 publication Critical patent/WO1998011373A3/fr

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
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/26—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics for branching pipes; for joining pipes to walls; Adaptors therefor
    • F16L47/34—Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor
    • F16L47/345—Tapping pipes, i.e. making connections through walls of pipes while carrying fluids; Fittings therefor making use of attaching means embracing the pipe
    • 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
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
    • F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)
  • Branch Pipes, Bends, And The Like (AREA)

Abstract

Cette invention se rapporte à un organe de coupe servant à découper des trous de raccordement dans des tuyaux en plastique. Généralement, on effectue le raccordement de tuyaux en plastique existants à un réseau de distribution au moyen d'une sellette électro-fusible scellé audit tuyau et en descendant l'organe de coupe le long de la tige de la sellette de façon à découper un trou dans ledit tuyau et à raccorder ensuite le tuyau à un bout mâle ou à une ramification de la sellette de raccordement au réseau de distribution. La découpe du trou dans le tuyau entraîne inévitablement des fuites qui peuvent être dangereuses lorsque le tuyau transporte du gaz. Il existe des structures d'organe de coupe qui règlent le problème des fuites au moment où le tuyau est découpé mais qui ne règlent pas celui des fuites se produisant entre l'instant où l'on retire ledit organe et celui où l'on applique un bouchon à la tige. Cette invention a pour but de résoudre ce problème et pour ce faire, l'organe de coupe, objet de l'invention, possède une structure comprenant une lame cylindrique et un corps fileté attaché à la lame, ledit corps comportant une première longueur intégrale de tube, du côté opposé à la lame cylindrique, et une seconde longueur de tube faisant saillie par rapport à ladite première longueur à laquelle elle est attachée de manière amovible, de telle sorte que le raccordement entre lesdites première et seconde longueurs sert d'indicateur visuel. Ainsi, une fois que le trou a été découpé dans le tuyau, ladite seconde longueur reste en contact avec une bague d'étanchéité disposée dans la tige lors du retrait de l'organe de coupe jusqu'à ce que l'indicateur visuel indique que l'organe de coupe a été retiré avec succès. La seconde longueur exposée est alors retirée sans recours à un outil supplémentaire, le joint d'étanchéité étant maintenu contre la première longueur de tube et la fixation du bouchon assurant une protection supplémentaire contre les fuites.
PCT/GB1997/002432 1996-09-11 1997-09-10 Organe de coupe WO1998011373A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9904753A GB2336189A (en) 1996-09-11 1997-09-10 Cutters
AU41297/97A AU4129797A (en) 1996-09-11 1997-09-10 Cutters

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9618980.8A GB9618980D0 (en) 1996-09-11 1996-09-11 Cutters
GB9618980.8 1996-09-11

Publications (2)

Publication Number Publication Date
WO1998011373A2 WO1998011373A2 (fr) 1998-03-19
WO1998011373A3 true WO1998011373A3 (fr) 2002-11-07

Family

ID=10799776

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1997/002432 WO1998011373A2 (fr) 1996-09-11 1997-09-10 Organe de coupe

Country Status (3)

Country Link
AU (1) AU4129797A (fr)
GB (1) GB9618980D0 (fr)
WO (1) WO1998011373A2 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407855A (en) * 2003-11-04 2005-05-11 Julian Jowitt A branch connector for tapping into live pipes
WO2005085699A1 (fr) * 2004-03-02 2005-09-15 Degens, Dianne, Jean Fixation de conduit

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB837399A (en) * 1957-07-31 1960-06-15 Wavin Bv Improvements in or relating to connections to pipe lines
US3176708A (en) * 1962-12-06 1965-04-06 Du Pont Tapping and valve assembly for plastic pipe
GB1220973A (en) * 1968-10-24 1971-01-27 Edward Barber And Company Ltd Improvements in and relating to ferrules for fitting a branch to a fluid-carrying pipe
US4076038A (en) * 1976-01-05 1978-02-28 Phillips Petroleum Company Tapping tee cutter having relieved sidewall

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB837399A (en) * 1957-07-31 1960-06-15 Wavin Bv Improvements in or relating to connections to pipe lines
US3176708A (en) * 1962-12-06 1965-04-06 Du Pont Tapping and valve assembly for plastic pipe
GB1220973A (en) * 1968-10-24 1971-01-27 Edward Barber And Company Ltd Improvements in and relating to ferrules for fitting a branch to a fluid-carrying pipe
US4076038A (en) * 1976-01-05 1978-02-28 Phillips Petroleum Company Tapping tee cutter having relieved sidewall

Also Published As

Publication number Publication date
GB9618980D0 (en) 1996-10-23
AU4129797A (en) 1998-04-02
WO1998011373A2 (fr) 1998-03-19

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