Anti-theft device for marine propellers

Axial blower for cooling the condenser of an air conditioner

Axial fan

Base vented subcavitating marine propeller

Blade hub air scoop

Boat propeller capable of being easily changed in pitch thereof

Boat propeller having counter-rotating screws and provided with

Controllable pitch propeller and watercraft drive

Decorative fan motor cover and mounting structure therefor

Device for centering a tube in a turbine shaft

Ducted turbine

Electric fan and especially a fan of the flat type

Electric motor or generator including centrifugal cooling fan

Emergency enablement device for a boat propeller

Fan blade attachment for fan motor

Fan with fluid friction clutch

Fan with motor cooling enhancement

Fan-fan drive assembly

Fluid coupling device and fan mounting arrangement

Gas turbine engine nose cone