Patent attributes
A buoyancy energy conversion system and method for converting buoyant forces to rotational energy may comprise a pair of reciprocating buoyancy tanks connected to a common drive cable. The pair of buoyancy tanks may be alternatively filled and emptied of compressed gas to alternately raise and lower the pair of buoyancy tanks within a water column. The ends of the drive cable are connected to opposed sides of a drive assembly such that the rising and lowering of the pair of buoyancy tanks within the water column rotates the drive assembly. The buoyancy energy conversion system may include an upper frame assembly mounted to a floating structure and supporting the drive assembly and a weighted lower frame assembly supporting said drive cable. A source and system of compressed gas and valves may force compressed gas and water into and out of the pair of buoyancy tanks.