EP 0033239 A3 19811230 - CRANE HYDRAULIC CONTROL SYSTEM
Title (en)
CRANE HYDRAULIC CONTROL SYSTEM
Publication
Application
Priority
AU PE214680 A 19800125
Abstract (en)
[origin: EP0033239A2] A crane hoise drive assembly having a hydraulic motor (20) driven by a variable displacement hydraulic pump (21) and a control circuit (10) for the pump adapted to govern the pump displacement so that the lift generated by said motor is independent of line travel and is adjustably predetermined.
IPC 1-7
IPC 8 full level
B66C 13/02 (2006.01); B66D 1/50 (2006.01)
CPC (source: EP)
B66C 13/02 (2013.01)
Citation (search report)
- US 3618897 A 19711109 - SWOBODA JOHN J JR, et al
- FR 1531600 A 19680705 - RICHIER SA
- DE 2146586 B2 19770428
- [A] US 3381939 A 19680507 - BROWN CICERO C, et al
- [A] FR 2314886 A1 19770114 - HAVRE STE NLE ATEL ET CHANTIER [FR]
- [A] FR 2246484 A1 19750502 - BROWN BROTHERS & CO LTD [GB]
- [A] FR 2044384 A5 19710219 - SCHWERMASCHINENBAU NOBA
- [A] DE 1096577 B 19610105 - VEB ZEK
- [A] DE 2112566 A1 19720921 - NEUENFELDER MASCHF GMBH
- PATENTS ABSTRACTS OF JAPAN, Vol. 4, No. 3, 11 January 1980, page 49M87; & JP-A-54 138 265
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI LU NL SE
DOCDB simple family (publication)
EP 0033239 A2 19810805; EP 0033239 A3 19811230; EP 0033239 B1 19851002; AT E15875 T1 19851015; DE 3172467 D1 19851107
DOCDB simple family (application)
EP 81300320 A 19810123; AT 81300320 T 19810123; DE 3172467 T 19810123