EP 0353152 B1 19920617 - DEVICE FOR WITHDRAWING DUG MATERIAL FOR MAKING DEEP TRENCHES
Title (en)
DEVICE FOR WITHDRAWING DUG MATERIAL FOR MAKING DEEP TRENCHES
Publication
Application
Priority
FR 8810067 A 19880726
Abstract (en)
[origin: JPH0243420A] PURPOSE: To remove spoil continuously by use of a crane whose height is some fraction of the depth of a trench, without stopping excavating operations by constructing a spoil removal conduit from a telescopic section and a flexible section supported on a pulley. CONSTITUTION: Removal of spoil from a trench 5 excavated by a rotary cutter machine 4 is effected through a conduit comprising a telescopic section 6 and a flexible section 7. As the trench 5 is excavated, the depth of the trench 5 becomes greater than the height of a crane 1, in which case this shortage is compensated by first causing a male element 6b enclosed in a female element 6a in the telescopic section 6 to project, then extending a cable 9 which supports a pulley 8 supporting the flexible section 7.
IPC 1-7
IPC 8 full level
E02F 5/02 (2006.01); E02F 5/08 (2006.01); E02F 5/20 (2006.01); E02F 7/00 (2006.01); E02F 7/10 (2006.01); E21B 7/00 (2006.01); E21B 17/07 (2006.01); E21B 17/20 (2006.01); E21B 19/22 (2006.01); E21B 21/00 (2006.01); E21D 1/06 (2006.01)
CPC (source: EP US)
E21B 7/003 (2013.01 - EP US); E21B 17/07 (2013.01 - EP US); E21B 17/20 (2013.01 - EP US); E21B 19/22 (2013.01 - EP US); E21B 21/01 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0353152 A1 19900131; EP 0353152 B1 19920617; AR 240708 A1 19900928; AT E77428 T1 19920715; CA 1317604 C 19930511; CY 1717 A 19940506; DE 353152 T1 19900816; DE 68901826 D1 19920723; DE 68901826 T2 19930204; ES 2014203 A4 19900701; ES 2014203 T3 19930316; FR 2634805 A1 19900202; FR 2634805 B1 19920410; HK 88693 A 19930903; JP H0243420 A 19900214; JP H0739672 B2 19950501; RU 1838519 C 19930830; SG 46493 G 19930709; US 4971157 A 19901120
DOCDB simple family (application)
EP 89402126 A 19890726; AR 31449289 A 19890725; AT 89402126 T 19890726; CA 606573 A 19890725; CY 171794 A 19940506; DE 68901826 T 19890726; DE 89402126 T 19890726; ES 89402126 T 19890726; FR 8810067 A 19880726; HK 88693 A 19930826; JP 25285988 A 19881006; SG 46493 A 19930415; SU 4614692 A 19890725; US 38497689 A 19890725