Peripheral turbine support system

Photocomposing machine and font strip therefor for kerned charac

Plant for the recovery of energy from waves in water

Plant for utilizing the energy in waves

Power generating water turbine

Power generation system

Pressurized water wheel

Process and installation for producing usable energy from parall

Reaction hydraulic turbine

Retractable rotor blades for power generating wind and ocean...

Reverse pitot air filter

Ribbon drive power generation for variable flow conditions

Rotary transducers

Rotating display apparatus

Rotational power transfer device

Rotor assembly for fluid driven engine

Rotor blade for a wind power system

Rotor blade with an electrical field

Rotor supporting structure of windmill for power generation

Self cleaning hydro delivery system