Buoyancy and gravitation motor
Ceiling fan having lighting fixture
Ceiling fan housing having light device
Chain turbine system
Fan for an incandescent light bulb fixture
Fan support assembly
Fluid energy-harnessing apparatus
Linear fan
Once-through pump
Power generating apparatus
Power transmission plant having pressure surfaces
Torque transmitting apparatus
Underwater power apparatus with furlable sails as working member
Wind driven power mechanism
Wind lift generator