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Class 441/22 - Fluid reaction surface


Subclass of Class 441 - Buoys, rafts, and aquatic devices
Definition: Buoy wherein a surface is provided which reacts with a fluid
No. of applications: 6
Last issue date: 10/27/2011


Application No.Application TitleIssue Date
20110259276FLOAT AND A FLOATABLE STRUCTURE
A float (1) comprising a hollow pneumatically pressurisable ovoid shell (5) is provided with a damping plate (12) extending laterally outwardly around the shell (5) for damping vertical upward and downward movement of the float in water durin...
10/27/2011
20090286432Apparatus Having A Buoyant Structure That Resists Rotation
Apparatus includes a buoyant structure having a central vertical axis when floating in water and having at least one feature to reduce a rotation of the buoyant structure about the central vertical axis when floating in the water. The apparatus further includes an elect...
11/19/2009
20090149092BUOY
A buoy is provided with first and second fixed hydrodynamic surfaces (15,16). When the buoy is towed through water by a tether (17), the first hydrodynamic surface (15) generates a downward force that reduces with increased speed through the water. ...
06/11/2009
20080194160Float and a Floatable Structure
A float (1) comprising a hollow pneumatically pressurisable ovoid shell (5) is provided with a damping plate (12) extending laterally outwardly around the shell (5) for damping vertical upward and downward movement of the float in water durin...
08/14/2008
20080132130Buoyant Device
A buoyant device has a body and an elongate tail. The body carries a payload. The tail is moveable, e.g. by pivoting, between a closed and an open position. This movement changes the position of the center of mass of the device relative to the center of buoyancy. As a r...
06/05/2008
20050186864Buoyancy motor
The present invention provides for an apparatus utilising the buoyancy upthrust on a floatation member to assist displacement of a moveable article in a non-vertical direction wherein the apparatus comprises at least one pivotally mounted floatation member disposed with...
08/25/2005
 
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