4. Fluid reaction surfaces (i.e., impellers)
  5. Articulated, resiliently mounted or self-shifting impeller...
  6. Plural articulation

Robert Charles Rybicki

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Cross beam rotor

Fluid reaction surfaces (i.e. – impellers) – Articulated – resiliently mounted or self-shifting impeller... – Plural articulation
Patent

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Redundant damper seals

Brakes – Internal-resistance motion retarder – Having a thrust member with a variable volume chamber
Patent

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Two-position helicopter main rotor

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes
Patent

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Profile ID: LFUS-PAI-P-1498462

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