EP 0727560 B1 20010404 - Casing rotating device for drilling machines
Title (en)
Casing rotating device for drilling machines
Title (de)
Futterrohr-Drehvorrichtung für Bohrmaschine
Title (fr)
Dispositif de mise en rotation d'un cuvelage pour machine de forage
Publication
Application
Priority
IT UD950022 A 19950216
Abstract (en)
[origin: EP0727560A2] Casing rotating device (10) for drilling machines, the device being associated and coaxial with a device (13) for the rotation of a drilling tool for the obtaining of foundation piles, the drilling tool rotation device (13) having its own motor, the rotary casing-oscillator device (10) being located in a position below the drilling tool rotation device (13) and being associated with a reduction-gear and torque-multiplier transmission assembly (15,115).
IPC 1-7
IPC 8 full level
E21B 3/025 (2006.01)
CPC (source: EP)
E21B 3/025 (2013.01)
Designated contracting state (EPC)
AT BE CH DE ES FR GB GR IT LI PT
DOCDB simple family (publication)
EP 0727560 A2 19960821; EP 0727560 A3 19970129; EP 0727560 B1 20010404; AT E200335 T1 20010415; DE 69612317 D1 20010510; DE 69612317 T2 20010712; IT 1280129 B1 19980105; IT UD950022 A0 19950216; IT UD950022 A1 19960816
DOCDB simple family (application)
EP 96101254 A 19960130; AT 96101254 T 19960130; DE 69612317 T 19960130; IT UD950022 A 19950216