EP 0434712 B1 19950405 - A METHOD AND AN APPARATUS FOR PUSHING PIPES ALONG A PIPE LINE.
Title (en)
A METHOD AND AN APPARATUS FOR PUSHING PIPES ALONG A PIPE LINE.
Title (de)
VORRICHTUNG UND VERFAHREN ZUM DRÜCKEN VON ROHREN ENTLANG EINES LEITUNGSSTRANGES.
Title (fr)
PROCEDE ET APPAREIL SERVANT A POUSSER DES TUYAUX LE LONG D'UNE CONDUITE.
Publication
Application
Priority
- SE 8900457 W 19890831
- SE 8902783 A 19890821
- SE 8803096 A 19880905
Abstract (en)
[origin: WO9002903A1] A method and an apparatus for pushing forward pipes along a pipe line section by which an apparatus is arranged to be brought down into a manhole connected to the pipe line section, and includes a pushing piston (20, 26) exerting a pushing force on a pipe (8, 12) with support of a holding-up device (2, 18). The pushing piston (20) at its leading end carries rods (27) extending essentially to the rear end of the pushing piston and there carry a pressure abutment (28) for bringing the pipe with it during the forward pushing movement of the piston, said rods (27) aiding in supporting the pipe (8).
IPC 1-7
IPC 8 full level
E21B 19/086 (2006.01)
CPC (source: EP)
E21B 19/086 (2013.01)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9002903 A1 19900322; AU 4203589 A 19900402; CA 1303602 C 19920616; DE 68922111 D1 19950511; DE 68922111 T2 19951130; DK 36591 A 19910301; DK 36591 D0 19910301; EP 0434712 A1 19910703; EP 0434712 B1 19950405; FI 911024 A0 19910228; FI 98243 B 19970131; NO 301441 B1 19971027; NO 910674 D0 19910220; NO 910674 L 19910220; SE 8902783 D0 19890821
DOCDB simple family (application)
SE 8900457 W 19890831; AU 4203589 A 19890831; CA 610157 A 19890901; DE 68922111 T 19890831; DK 36591 A 19910301; EP 89909890 A 19890831; FI 911024 A 19910228; NO 910674 A 19910220; SE 8902783 A 19890821