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

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Helicopter rotor blade flap actuator government interest

Fluid reaction surfaces (i.e. – impellers) – With means moving working fluid deflecting working member...

Patent

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Helicopter rotor blade having a replaceable anhedral tip

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

Patent

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Helicopter rotor blade made from a multispar composite material

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

Patent

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Helicopter rotor blade mounting assembly

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

Patent

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Helicopter rotor blade securement device

Fluid reaction surfaces (i.e. – impellers) – Working member foldable – pivotable or collapsible to non-use... – Member movement in rotation plane

Patent

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Helicopter rotor blade weighting

Fluid reaction surfaces (i.e. – impellers) – With weight-balancing means – Self-shifting or selectively adjustable mass

Patent

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Helicopter rotor blade with a movable flap

Fluid reaction surfaces (i.e. – impellers) – With means moving working fluid deflecting working member...

Utility Patent

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Helicopter rotor blade with improved performance characteristics

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Helicopter rotor blades

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

Patent

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Helicopter rotor blades

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

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Helicopter rotor blades

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Helicopter rotor blades

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Helicopter rotor blades

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

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Helicopter rotor blades

Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Tined or irregular periphery

Patent

[ 0.00 ] – not rated yet Voters 0 Comments 0

Helicopter rotor brake

Fluid reaction surfaces (i.e. – impellers) – Having clutch or brake means

Patent

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Helicopter rotor brake assembly

Fluid reaction surfaces (i.e. – impellers) – Having clutch or brake means

Patent

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Helicopter rotor brake device

Fluid reaction surfaces (i.e. – impellers) – Having clutch or brake means

Patent

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Helicopter rotor comprising elastomer joints

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

Patent

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Helicopter rotor control system with integrated hub

Fluid reaction surfaces (i.e. – impellers) – Having positive means for impeller adjustment – Motor bodily rotatable with impeller hub or shaft

Patent

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Helicopter rotor damper

Fluid reaction surfaces (i.e. – impellers) – Sustained ancillary movement of rotary working member – Lead-lag type rotor blade movement

Patent

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