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

David E. Bulman

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Aircraft pitch change mechanism

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

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Bladed disk assembly

Fluid reaction surfaces (i.e. – impellers) – Having frangible or fusible part or connection
Patent

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Interlocked compressor stator

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Plural distributing means immediately upstream of runner
Reexamination Certificate

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Methods and apparatus for directing airflow to a compressor...

Fluid reaction surfaces (i.e. – impellers) – With heating – cooling or thermal insulation means – Changing state mass within or fluid flow through working...
Reexamination Certificate

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Pitch change mechanism for prop fans

Fluid reaction surfaces (i.e. – impellers) – Plural impellers having relative movement or independent... – Coaxial rotation
Patent

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