NO950647L - Plugg for rörledning - Google Patents

Plugg for rörledning

Info

Publication number
NO950647L
NO950647L NO950647A NO950647A NO950647L NO 950647 L NO950647 L NO 950647L NO 950647 A NO950647 A NO 950647A NO 950647 A NO950647 A NO 950647A NO 950647 L NO950647 L NO 950647L
Authority
NO
Norway
Prior art keywords
plug
pipeline
rear portion
towing
equipment
Prior art date
Application number
NO950647A
Other languages
English (en)
Other versions
NO950647D0 (no
Inventor
Jaromir Friedrich
Original Assignee
Jaromir Friedrich
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 US07/932,190 external-priority patent/US5293905A/en
Application filed by Jaromir Friedrich filed Critical Jaromir Friedrich
Publication of NO950647D0 publication Critical patent/NO950647D0/no
Publication of NO950647L publication Critical patent/NO950647L/no

Links

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  • Pipe Accessories (AREA)

Abstract

Det er beskrevet en rørledningsplugg hvis bakre parti er bevegelig aksialt i forhold til plugglegemet og forsynt med utstyr (18, 85) for å frembringe en slepevirkning ved anlegg mot rørledningsveggen (16). Mens pluggen drives frem ved hjelp av fluidstremningen i rørledningen, holder slepevirk- ningen det bakre parti i dets bakerste ytterstilling. Når pluggen når sin bestemte posisjon i rørledningen, motvirkes reversering av strømningen i rørledningen ved hjelp av slepe- utstyret (18, 85), idet den forskyving fremover av pluggens bakre del som denne fører til, utløser låsing av pluggen på stedet og påfølgende utvidelse av pluggens tetninger (54, 102), og alt sammen forårsakes alene av trykkforskjellen i den rørledning det arbeides med.
NO950647A 1992-08-21 1995-02-21 Plugg for rörledning NO950647L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/932,190 US5293905A (en) 1992-08-21 1992-08-21 Pipeline plug
PCT/CA1993/000326 WO1994004864A1 (en) 1992-08-21 1993-08-20 Pipeline plug

Publications (2)

Publication Number Publication Date
NO950647D0 NO950647D0 (no) 1995-02-21
NO950647L true NO950647L (no) 1995-02-21

Family

ID=25683061

Family Applications (1)

Application Number Title Priority Date Filing Date
NO950647A NO950647L (no) 1992-08-21 1995-02-21 Plugg for rörledning

Country Status (1)

Country Link
NO (1) NO950647L (no)

Also Published As

Publication number Publication date
NO950647D0 (no) 1995-02-21

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