EP 0496924 B1 19931208 - Method and apparatus for laying underground pipes.
Title (en)
Method and apparatus for laying underground pipes.
Title (de)
Verfahren und Vorrichtung zum unterirdischen Vortreiben von Rohren.
Title (fr)
Procédé et dispositif pour la pose de conduits souterrains.
Publication
Application
Priority
EP 91101325 A 19910201
Abstract (en)
[origin: EP0496924A1] Method of laying underground pipes in which an oscillating movement in the longitudinal direction is superimposed on the driving movement of the pipe (14), characterised in that the oscillating movement takes place with a greater stroke speed in the driving direction than in the opposite direction. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
E21B 7/24 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL
DOCDB simple family (publication)
EP 0496924 A1 19920805; EP 0496924 B1 19931208; AT E98335 T1 19931215; DE 59100695 D1 19940120; DK 11692 A 19920802; DK 11692 D0 19920131
DOCDB simple family (application)
EP 91101325 A 19910201; AT 91101325 T 19910201; DE 59100695 T 19910201; DK 11692 A 19920131