EP 0897893 A3 20000223 - Tractor pipelaying unit
Title (en)
Tractor pipelaying unit
Title (de)
Rohrverlegungseinheit für Traktor
Title (fr)
Unité de pose de tuyaux pour tracteur
Publication
Application
Priority
US 5620197 P 19970821
Abstract (en)
[origin: EP0897893A2] Improvements are made to prior tractors supported and driven by a rubber track (62) having bogie wheels (61) to increase the boom lifting capacity. The improvements include a main subframe having a loop-like structure which has a center section (74) extending under the tractor frame (70,72) midway between the front idler wheels (63) and rear drive wheels (65), two end sections (76,80) extending outwardly, one end section (76) supporting the drawworks (78) and the other end (80) supporting the tairlead (82). A rigid cross member extends from the fairlead (82) to the drawworks (78) and is positioned above the tractor frame (70,72) beneath the cab (106). <IMAGE>
IPC 1-7
IPC 8 full level
B66C 23/44 (2006.01); B66C 23/62 (2006.01)
CPC (source: EP)
B66C 23/44 (2013.01); B66C 23/62 (2013.01)
Citation (search report)
- [AD] US 5392936 A 19950228 - SOLOMON JAMES M [US], et al
- [A] US 4083459 A 19780411 - ALLEN JAN K
- [A] US 4042116 A 19770816 - BERTOLINO GIORGIO M
- [A] US 5332110 A 19940726 - FORSYTH RAYMOND [CA]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0897893 A2 19990224; EP 0897893 A3 20000223; AU 8078598 A 19990304; CA 2245392 A1 19990221
DOCDB simple family (application)
EP 98306735 A 19980821; AU 8078598 A 19980819; CA 2245392 A 19980820