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

Patrick R. Tisdale

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Assembly for providing flexure to blade system

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

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Assembly for providing flexure to blade system

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

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Composite flapping flexure

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

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Constant-velocity joint with torque-combining differential

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling accommodates drive between members having... – Coupling transmits torque via axially directed pin radially...
Reexamination Certificate

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Joint for tiltrotor hubs

Rotary shafts – gudgeons – housings – and flexible couplings for ro – Coupling device includes angled or hinged rod having...
Reexamination Certificate

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Profile ID: LFUS-PAI-P-263701

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