LandOfFree - US Patents - Listing for Fluid reaction surfaces (i.e., impellers),Specific blade structure

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Apertured or permeable

Air fan with lightly-constructed reinforcing fan blades

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Formed with main spar

Air foil blade and methods of making same

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Air foil configuration for wind turbine

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Air foil shape for a compressor blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Air lifted airfoil

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Air propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Air propellers in so far as the profile of their blades is conce

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Air-driven ceiling fan

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Irregular – flanged or channel forming blade surface

Air-driven ceiling fan

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Aircraft propeller

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Reverse curve surface

Aircraft propeller and blade element

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Laminated – embedded member or encased material

Aircraft propeller assembly with composite blades

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Having wear liner – sheathing or insert

Airfoil and method for protecting airfoil leading edge

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Airfoil blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Hollow

Airfoil blade for impeller fan and manufacturing method thereof

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Concave surface

Airfoil for a first stage nozzle guide vane

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Airfoil for a helicopter rotor blade

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices

Airfoil for high efficiency/high lift fan

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Coating – specific composition or characteristic

Airfoil having improved impact and erosion resistance and...