Patent ID: 7311469
Filing Date: 2007-12-25
Classification: B63B,B63C

Abstract:
1. Floating lowering and lifting device ( 1 ) comprising a floating structure ( 2 ) and a lifting unit ( 3 ) lowerable from the floating structure ( 2 ) towards the sea bed, the lifting unit ( 3 ) having a chamber ( 5 ) with a least one gas-inlet opening ( 9 ) in its wall and a gas supply means ( 13 , 32 ) connected to the gas-inlet opening ( 9 ), the device ( 1 ) comprising a control element ( 14 , 15 ) for controlling a gas supply rate to the chamber ( 5 ), the chamber comprising a releasable coupling member ( 7 ) for attaching to a load, characterized in that, the lifting unit (