EP 0580585 B1 19960327 - TUNNEL-DRIVING MACHINE
Title (en)
TUNNEL-DRIVING MACHINE
Title (de)
TUNNELVORTRIEBSMASCHINE
Title (fr)
TUNNELIER
Publication
Application
Priority
- DE 9200047 W 19920125
- DE 4113208 A 19910423
Abstract (en)
[origin: WO9218751A1] Proposed is a tunnel-driving machine designed to bore a tunnel and having, in addition to a large outer cutter wheel (8), a smaller central cutter wheel (17) which is mounted near the hub of the outer cutter wheel (8) and which enables the formation of soil plugs and dead cores to be avoided along the longitudinal axis of the cutting wheel (8), thus reducing the resistance of the machine to forward motion.
IPC 1-7
IPC 8 full level
E21D 9/08 (2006.01); E21D 9/087 (2006.01); E21D 9/06 (2006.01)
CPC (source: EP US)
E21D 9/0657 (2016.01 - EP US); E21D 9/0879 (2016.01 - EP US)
Designated contracting state (EPC)
CH DE FR GB LI SE
DOCDB simple family (publication)
WO 9218751 A1 19921029; DE 4113208 A1 19921029; DE 4113208 C2 19950406; DE 59205869 D1 19960502; EP 0580585 A1 19940202; EP 0580585 B1 19960327; US 5437500 A 19950801
DOCDB simple family (application)
DE 9200047 W 19920125; DE 4113208 A 19910423; DE 59205869 T 19920125; EP 92903024 A 19920125; US 13710293 A 19931220