EP 0103706 B1 19860514 - SHORING APPARATUS FOR THE SHORING OF TRENCHES
Title (en)
SHORING APPARATUS FOR THE SHORING OF TRENCHES
Publication
Application
Priority
DE 3234440 A 19820917
Abstract (en)
[origin: US4521137A] A trenching casing for the continuous excavation and refilling of trenches for the installation of conduits into the ground has spaced side walls consisting of at least upper and lower sections which are longitudinally movably relative to each other and each of which has a rear face plate with a hydraulic advancing cylinder for pushing the respective section forwardly, and the upper and lower sections are interconnected by hydraulic operating cylinders which facilitate the advancing of one of the sections relative to, and guided by, the other section which, meanwhile, remains in a firm position.
IPC 1-7
IPC 8 full level
E02D 17/08 (2006.01)
CPC (source: EP US)
E02D 17/086 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0103706 A1 19840328; EP 0103706 B1 19860514; DE 3363513 D1 19860619; US 4521137 A 19850604
DOCDB simple family (application)
EP 83107326 A 19830726; DE 3363513 T 19830726; US 51834583 A 19830729