EP 4389688 A1 20240626 - MULTISTAGE LIFTING SYSTEM AND METHOD
Title (en)
MULTISTAGE LIFTING SYSTEM AND METHOD
Title (de)
MEHRSTUFIGES HEBESYSTEM UND VERFAHREN
Title (fr)
SYSTÈME ET PROCÉDÉ DE LEVAGE À ÉTAGES MULTIPLES
Publication
Application
Priority
EP 22215908 A 20221222
Abstract (en)
A lifting system (200, 200') for vertically lifting a load (300, 300') in two stages, the system (200, 200') comprising: a first rope (210, 210') for connecting to the load (300, 300') to be lifted; a first rope pulling mechanism (230, 230') configured to selectively pull the first rope (210, 210') in and selectively hold the first rope (210, 210'); a vertically moveable sheave (220, 220'); and a sheave lifting apparatus (400, 400') configured to lift the vertically moveable sheave (220, 220'); wherein in use the first rope (210, 210') passes over the vertically moveable sheave (220, 220') between the first rope pulling mechanism (230, 230') and the load (300, 300'); such that in use the first rope pulling mechanism (230, 230') can be used to lift the load (300, 300') in a first stage by pulling the first rope (210, 210') in, and then hold the first rope (210, 210') such that the sheave lifting apparatus (400, 400) can lift the vertically moveable sheave (220, 220') to spool the first rope (210, 210') over the vertically moveable sheave (220, 220'), thereby lifting the load (300, 300') in a second stage.
IPC 8 full level
B66F 11/00 (2006.01); B63B 27/08 (2006.01); B63B 27/16 (2006.01); B66F 19/00 (2006.01)
CPC (source: EP)
B66F 19/00 (2013.01); B63B 27/16 (2013.01)
Citation (search report)
- [X] WO 2017192046 A1 20171109 - MHWIRTH AS [NO]
- [X] WO 2015189368 A2 20151217 - CAMERON SENSE AS [NO]
- [XYI] US 2012034061 A1 20120209 - BOROY YNGVAR [NO]
- [XY] CN 114955866 A 20220830 - MITSUBISHI HEAVY IND MACH SYSTEMS LTD
- [Y] US 4033553 A 19770705 - SUGIMOTO YUTAKA
- [Y] US 1740707 A 19291224 - OSGOOD ROBERT C
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
DOCDB simple family (application)
EP 22215908 A 20221222