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

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to gravity or working fluid force

Windmill with automatic feathering control and storm protection

Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive

Windmill with controller for controlling rotor RPM

Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller... – Feathering cycle related to flow direction

Windmill with cyclically feathering blades

Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller... – Offset relative to flow direction

Windmill with direction-controlled feathering

Fluid reaction surfaces (i.e. – impellers) – Spiral blade or flow passage

Windmill with radial vanes

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Responsive to gravity or working fluid force

Windmill with removable wind vane plates arranged in multi-rows-

Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller...

Windmill yaw and speed controls

Fluid reaction surfaces (i.e. – impellers) – Working member supported on endless flexible carrier – Feathering blades

Windmotor as a windbreak

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Continuous rotation about plural axes

Windpower generator apparatus

Fluid reaction surfaces (i.e. – impellers) – Interrelated controls for impeller and drive means – Pitch adjustment related to drive brake or clutch operation

Windpower system

Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Nonmetallic resilient mounting

Wing mounting for a rotary wing aircraft

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

Winglet for wind turbine rotor blade

Fluid reaction surfaces (i.e. – impellers) – With illumination means

Wire diverter for downrods of ceiling fans

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

Wooden fan blade

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

Wooden wind turbine blade manufacturing process

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

Woven turbomachine impeller

Fluid reaction surfaces (i.e. – impellers) – Rotor having flow confining or deflecting web – shroud or... – Axially extending shroud ring or casing

Wrapped paired blade rotor

Fluid reaction surfaces (i.e. – impellers) – Drive by fluid reaction jet on working member – Articulated or flexible connection

X-Wing aircraft circulation control

Fluid reaction surfaces (i.e. – impellers) – With means positioning fluid current driven impeller...

Yawing device and method of controlling it