EP 1444405 B1 20061220 - TRENCHING METHOD AND APPARATUS
Title (en)
TRENCHING METHOD AND APPARATUS
Title (de)
VERFAHREN UND VORRICHTUNG ZUM SCHNEIDEN VON GRÄBEN
Title (fr)
APPAREIL ET PROCEDE DE CREUSEMENT DE TRANCHEE
Publication
Application
Priority
GB 0105007 W 20011113
Abstract (en)
[origin: WO03044286A1] Trenching apparatus comprises a cutting device (23), preferably an endless chain cutter, mounted on a prime mover (21) for positioning the cutting device in a trench (18) with the prime mover movable on the ground surface (22) above the level of the trench. Where the cutting device is a chain cutter, the boom projects forwardly and downwardly relative to the direction of cutting the trench, and drive means are arranged to drive the chain in a direction to carry the cutting elements upwardly around the distal end of the boom and rearwardly along the upper run (30) of the endless chain cutter (23). In operation the distal end of the chain cutter (23) is positioned against the end face of the trench at the bottom of the trench (18); the prime mover (21) moves the chain cutter forwardly in the trench while operating the chain cutter, so as to produce an undercut (55) in the end face (54) of the trench; and the lifting means (25) lifts the cutting device (23) upwardly from the undercut through the material of the end face so as to cut material from the end face of the trench.
IPC 8 full level
E02F 5/06 (2006.01); E02F 5/10 (2006.01); E02F 3/06 (2006.01); E02F 3/10 (2006.01); E02F 3/20 (2006.01); E02F 5/00 (2006.01); E02F 5/14 (2006.01); E02F 3/08 (2006.01); E02F 3/18 (2006.01); E02F 5/02 (2006.01)
CPC (source: EP KR)
E02D 17/13 (2013.01 - KR); E02F 3/06 (2013.01 - EP); E02F 3/082 (2013.01 - EP); E02F 3/085 (2013.01 - EP); E02F 3/088 (2013.01 - EP); E02F 3/10 (2013.01 - EP); E02F 3/181 (2013.01 - EP); E02F 3/186 (2013.01 - EP); E02F 3/188 (2013.01 - EP); E02F 3/20 (2013.01 - EP); E02F 5/00 (2013.01 - EP); E02F 5/04 (2013.01 - EP); E02F 5/06 (2013.01 - EP KR); E02F 5/08 (2013.01 - EP); E02F 5/10 (2013.01 - KR)
Citation (examination)
WO 0235016 A1 20020502 - MASTENBROEK LTD [GB], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 03044286 A1 20030530; AT E348919 T1 20070115; AU 2002214153 A1 20030610; AU 2002214153 B2 20080626; AU 2002214153 C1 20081211; BR 0117174 A 20041026; BR 0117174 B1 20101116; CA 2466940 A1 20030530; CA 2466940 C 20100413; CN 1322205 C 20070620; CN 1582358 A 20050216; DE 60125425 D1 20070201; DE 60125425 T2 20071004; DK 1444405 T3 20070430; EA 005541 B1 20050428; EA 200400669 A1 20041230; EP 1444405 A1 20040811; EP 1444405 B1 20061220; ES 2278796 T3 20070816; JP 2005509769 A 20050414; JP 4087794 B2 20080521; KR 100824099 B1 20080421; KR 20040063961 A 20040715; NO 20042420 L 20040610; NO 338167 B1 20160801; PT 1444405 E 20070330
DOCDB simple family (application)
GB 0105007 W 20011113; AT 01982611 T 20011113; AU 2002214153 A 20011113; BR 0117174 A 20011113; CA 2466940 A 20011113; CN 01823926 A 20011113; DE 60125425 T 20011113; DK 01982611 T 20011113; EA 200400669 A 20011113; EP 01982611 A 20011113; ES 01982611 T 20011113; JP 2003545895 A 20011113; KR 20047007329 A 20011113; NO 20042420 A 20040610; PT 01982611 T 20011113