Advanced piggyback water power generator

Apparatus for utilizing the energy present in flowing water

Bi-directional hydroturbine assembly for tidal deployment

Bi-directional hydroturbine assembly for tidal deployment

Captive water current power system

Centrifugal pump

Dual hydroturbine unit

Fluid current turbine with flexible collectors

Fluid powered electric generator having hinged vane rotor

Gravity-actuated fluid displacement power generator

Method and apparatus for detecting and removing obstructions...

Portable power generating devices

Pump module for a compliant underwater pipe system

River turbine

Submarine turbine power plant

Tidal turbine installation

Turbine and like rotary machines

Turbine wheel with catenary blades

Underwater turbine device with hinged collapsible blades

Unidirectional helical reaction turbine operable under reversibl