Patent ID: 6866234

Claim:
A device comprising: an airfoil having an exterior surface; an fluid inlet opening extending through the exterior surface of the airfoil; an fluid outlet opening separate from the fluid inlet opening; a pump operatively connected to the fluid inlet opening and the fluid outlet opening, the pump being configured and adapted to draw fluid into the fluid inlet opening and to expel fluid from the fluid outlet opening; and first and second valves, the first valve being operatively connected between the fluid inlet opening and the pump and the second valve being operatively connected between the pump and the fluid outlet opening, the first valve being configured and adapted to allow fluid to be drawn into the airfoil via the fluid inlet opening and to prevent fluid from being expelled from the airfoil via the fluid inlet opening, the second valve being configured and adapted to allow fluid to be expelled from the airfoil via the fluid outlet opening and to prevent fluid from being drawn into the airfoil via the fluid outlet opening.