EP 1280726 A4 20061213 - ACTIVE DEPLOYMENT SYSTEM AND METHOD
Title (en)
ACTIVE DEPLOYMENT SYSTEM AND METHOD
Title (de)
SYSTEM UND VERFAHREN ZUR AKTIVEN KOMPENSATION
Title (fr)
SYSTEME DE DEPLOIEMENT ACTIF ET PROCEDE ASSOCIE
Publication
Application
Priority
- US 0110701 W 20010404
- US 19482200 P 20000405
Abstract (en)
[origin: WO0177000A1] The active deployment system (10, 10') comprises a passive cylinder system (410) coupled with an active cylinder system (400). The passive cylinder system (410) including a pre-charged accumulator (440), provides load balance for the equipment or other mass/load being deployed. Pressure provided to the blind end of the passive cylinder supports the load (60), such that the passive cylinder is balanced mid-stroke with the load hanging from a cable (30). A sheave arrangement (120, 130), placed at opposite ends of the passive cylinder-active cylinder combination, is used to introduce a line travel multiplier for cylinder displacement. The active cylinder is controlled hydraulically to add or remove load to/from the passive cylinder system in order to provide a compensating balance. The method comprises the steps of measuring a heave movement (velocity and direction), and adjusting the tension force applied to the cable (30) upon determining that the heave velocity exceeds a pre-selected critical velocity.
IPC 8 full level
B66D 1/50 (2006.01); B63B 27/30 (2006.01); B66C 13/02 (2006.01); E21B 19/00 (2006.01)
CPC (source: EP US)
B66C 13/02 (2013.01 - EP US); E21B 19/006 (2013.01 - EP US)
Citation (search report)
- [X] EP 0090741 A1 19831005 - ALSTHOM ATLANTIQUE [FR]
- See references of WO 0177000A1
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
WO 0177000 A1 20011018; AU 5521801 A 20011023; BR 0109813 A 20030121; CA 2403015 A1 20011018; EP 1280726 A1 20030205; EP 1280726 A4 20061213; NO 20024736 D0 20021002; NO 20024736 L 20021004; US 2003123957 A1 20030703
DOCDB simple family (application)
US 0110701 W 20010404; AU 5521801 A 20010404; BR 0109813 A 20010404; CA 2403015 A 20010404; EP 01928348 A 20010404; NO 20024736 A 20021002; US 24099402 A 20021004