EP 0143316 A1 19850605 - Single post derrick with 360o swing.
Title (en)
Single post derrick with 360o swing.
Title (de)
Ladebaum mit einem Mast und Schwenkung von 360 Grad.
Title (fr)
Mât de charge ayant un poteau unique à pivotement de 360 degrés.
Publication
Application
Priority
US 54721583 A 19831031
Abstract (en)
A derrick assembly for lifting and moving cargo is disclosed which includes a mast (12) adapted to be fixed to a supporting surtace (13), the mast having a base and a top. A boom (22) having first and second ends is mounted along the length of the mast such that freedom of rotation of the boom about the mast is provided. A cable system (70) is operatively associated with the top of the mast and with the boom for selectively rotating the boom about the mast. In the most preferred embodiment, the cable means is adapted to provide movement of the boom about the fixed mast through 360 DEG of rotation.
IPC 1-7
IPC 8 full level
B66C 23/84 (2006.01); B66C 23/60 (2006.01)
CPC (source: EP)
B66C 23/605 (2013.01)
Citation (search report)
- DE 2001025 A1 19701001 - SPEEDCRANES LTD
- NL 8104269 A 19830418 - ITREC BV
- GB 1248410 A 19711006 - TESTING ASSOCIATES INC [US]
- FR 2496073 A1 19820618 - BLOHM VOSS AG [DE]
- DE 1094617 B 19601208 - H C STUELCKEN SOHN
- GB 2028264 A 19800305 - KAWASAKI HEAVY IND LTD
- US 3375937 A 19680402 - BRADSHAW WILLIAM K
- GB 990204 A 19650428 - JOHN VERNON BUCKLAND
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
DOCDB simple family (application)
EP 84112603 A 19841018; JP 23005384 A 19841031