EP 2342385 A1 20110713 - DRAG HEAD FOR A TRAILING SUCTION HOPPER DREDGER AND METHOD FOR DREDGING USING THIS DRAG HEAD
Title (en)
DRAG HEAD FOR A TRAILING SUCTION HOPPER DREDGER AND METHOD FOR DREDGING USING THIS DRAG HEAD
Title (de)
SAUGKOPF FÜR EINEN LADERAUMSAUGBAGGER UND BAGGERVERFAHREN MITTELS DIESES SAUGKOPFES
Title (fr)
TÊTE DE TRAÎNAGE POUR UNE DRAGUE ASPIRATRICE REMORQUÉE ET PROCÉDÉ POUR DRAGUER À L AIDE DE CETTE TÊTE DE TRAÎNAGE
Publication
Application
Priority
- EP 2009062388 W 20090924
- BE 200800544 A 20080929
Abstract (en)
[origin: WO2010034775A1] The invention relates to a drag head (1) of a trailing suction hopper dredger. The drag head comprises a visor (2) which is dragged over the bottom and herein loosens soil, and a suction pipe (3) which is connected to the visor (2) and which discharges the loosened soil. The visor (2) comprises at least two individually movable pressure elements (21, 22, 23, 24) transversely of the dragging direction which comprise a number of substantially disc-shaped penetrating bodies (51, 52, 53, 54). The penetrating bodies transmit forces to the bottom via their peripheral edge under the influence of the weight of the pressure element in which they are received, whereby the bottom is broken. The drag head has an improved efficiency.
IPC 8 full level
E02F 3/92 (2006.01)
CPC (source: EP US)
E02F 3/9212 (2013.01 - EP US); E02F 3/9256 (2013.01 - EP US); E02F 3/9262 (2013.01 - EP US); E02F 3/9281 (2013.01 - EP US)
Citation (search report)
See references of WO 2010034775A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2010034775 A1 20100401; AR 073698 A1 20101124; AU 2009295885 A1 20100401; AU 2009295885 B2 20160211; BE 1018312 A3 20100803; DK 2342385 T3 20121022; EP 2342385 A1 20110713; EP 2342385 B1 20120822; ES 2391881 T3 20121130; HK 1155496 A1 20120518; JP 2012504196 A 20120216; JP 5346378 B2 20131120; KR 101646632 B1 20160808; KR 20110079703 A 20110707; MY 157476 A 20160615; NZ 592074 A 20120831; PA 8844001 A1 20100526; PT 2342385 E 20121113; TW 201020375 A 20100601; TW I541409 B 20160711; US 2011239493 A1 20111006; ZA 201102455 B 20111228
DOCDB simple family (application)
EP 2009062388 W 20090924; AR P090103724 A 20090928; AU 2009295885 A 20090924; BE 200800544 A 20080929; DK 09815688 T 20090924; EP 09815688 A 20090924; ES 09815688 T 20090924; HK 11109714 A 20110915; JP 2011528323 A 20090924; KR 20117009818 A 20090924; MY PI20111903 A 20090924; NZ 59207409 A 20090924; PA 8844001 A 20090929; PT 09815688 T 20090924; TW 98132422 A 20090925; US 200913121634 A 20090924; ZA 201102455 A 20110401