EP 1985766 A2 20081029 - Vehicle for laying an elongate product in a trench in the sea floor
Title (en)
Vehicle for laying an elongate product in a trench in the sea floor
Title (de)
Fahrzeug zur Lagerung eines länglichen Produkts in einen Graben auf dem Meeresgrund
Title (fr)
Véhicule pour la pose d'un produit allongé dans la fosse d'un fond océanique
Publication
Application
Priority
GB 0708082 A 20070426
Abstract (en)
A vehicle (40) for laying a pipe (42) in a trench (44) in the sea floor (46) is disclosed. The vehicle has two operational modes, a first mode for cutting a trench in a sea floor with a soft upper layer and a hard lower layer and a second mode for a sea floor of hard material throughout the depth of the trench. The vehicle has three cutting chains (56,58,60), the forward most chain, that is only used when the second mode cuts a shallow central section of the trench from a first side. A centrally positioned cutting chain (56), that is used in both modes, cuts the next portion of the trench to its full depth from the opposite side that the forward most cutting chain (58) operates. A rear most cutting chain (60) cuts the final portion of the trench to its full depth, therefore partially overlapping with the previous portion, and operates from the same side of the trench (44) as the forward most cutting chain (58).
IPC 8 full level
E02F 5/10 (2006.01)
CPC (source: EP)
E02F 5/104 (2013.01); E02F 5/105 (2013.01)
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 MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1985766 A2 20081029; EP 1985766 A3 20120328; GB 0708082 D0 20070606
DOCDB simple family (application)
EP 08251502 A 20080423; GB 0708082 A 20070426