EP 1590232 B1 20090422 - LIFTING DEVICE FOR FULLY PLANING OR SEMI-PLANING WATERCRAFTS
Title (en)
LIFTING DEVICE FOR FULLY PLANING OR SEMI-PLANING WATERCRAFTS
Title (de)
HUBVORRICHTUNG FÜR VOLLGLEITENDE ODER HALBGLEITENDE WASSERFAHRZEUGE
Title (fr)
DISPOSITIF DE LEVAGE DESTINE A DES BATEAUX PLANANTS OU SEMI-PLANANTS
Publication
Application
Priority
- IB 2004000035 W 20040112
- IT LU20030002 U 20030110
Abstract (en)
[origin: US2006150885A1] A lifting device ( 10 ) for watercrafts of the fully planing or semiplaning type provides at least a transversal element ( 15 ) constrained to the bottom ( 25 ) by means of supports orthogonal to the waterline (8) and suitable to increase the hydrodynamic lift acting on the bottom ( 25 ). The position of the device ( 10 ) may be under the barycentre ( 5 ) or slightly shifted from it, and generates, when in navigation at a sufficient speed ( 4 ), an additional hydrodynamic lift (6), which adds to the hydrodynamic lift ( 3 ) on the bottom and to the hydrostatic lift ( 2 ) for balancing the weight of the watercraft. The transversal element ( 15 ) is arranged substantially parallel to the watercraft bottom ( 25 ), so that in fully planing or semi-planing conditions it is inclined with respect to the speed ( 4 ) of the watercraft. This way it is possible to reduce the amount of water displaced during navigation and to supply a steady hydrodynamic lift.
IPC 8 full level
CPC (source: EP US)
B63B 1/16 (2013.01 - US); B63B 1/248 (2013.01 - EP)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
DOCDB simple family (publication)
WO 2004062999 A1 20040729; AT E429380 T1 20090515; DE 602004020732 D1 20090604; EP 1590232 A1 20051102; EP 1590232 B1 20090422; IT LU20030002 U1 20030410; US 2006150885 A1 20060713
DOCDB simple family (application)
IB 2004000035 W 20040112; AT 04701401 T 20040112; DE 602004020732 T 20040112; EP 04701401 A 20040112; IT LU20030002 U 20030110; US 54194105 A 20050708