EP 1293471 B1 20050525 - Telescopic boom
Title (en)
Telescopic boom
Title (de)
Teleskopausleger
Title (fr)
Flèche télescopique
Publication
Application
Priority
DE 10142847 A 20010829
Abstract (en)
[origin: DE10142847C1] The telescopic extension has an outer casing enclosing one or more inner casings, fitting coaxially within one another and extended in succession via a hydraulic 2-stage piston/cylinder system (10), fixed to the outer casing at one axial end and coupled to each inner casing via a securing and locking device (8,9). The piston/cylinder system has an outer cylinder (11) and an independently operated inner cylinder (12) acting as the piston of the outer cylinder, the outer cylinder and a piston rod (13) within the inner cylinder providing the extensible parts of the piston/cylinder system.
IPC 1-7
IPC 8 full level
B66C 23/693 (2006.01); B66C 23/70 (2006.01); F15B 15/16 (2006.01)
CPC (source: EP)
B66C 23/705 (2013.01)
Designated contracting state (EPC)
AT CH DE FR LI
DOCDB simple family (publication)
EP 1293471 A1 20030319; EP 1293471 B1 20050525; AT E296257 T1 20050615; DE 10142847 C1 20021121; DE 50203183 D1 20050630
DOCDB simple family (application)
EP 02090290 A 20020815; AT 02090290 T 20020815; DE 10142847 A 20010829; DE 50203183 T 20020815