LandOfFree - US Patents - Listing for Fluid reaction surfaces (i.e., impellers),Plural impellers having relative movement or independent...

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Aircraft engine unducted fan blade pitch control system

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

Patent

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Aircraft propulsion means

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

Patent

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Anti-cavitation marine propeller

Fluid reaction surfaces (i.e. – impellers) – Plural impellers having relative movement or independent... – Shiftable support

Patent

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Arrangement for adjusting the rotor blades of a propfan turbopro

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

Patent

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Auxiliary power source in an unducted fan gas turbine engine

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

Patent

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Blade gearing and pitch changing mechanisms for coaxial counterr

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

Patent

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Blade pitch varying means

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

Patent

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Blade pitch varying mechanism

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

Patent

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Blade pitch varying mechanism

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

Patent

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Brake for counter rotating bladed members

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

Patent

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Coaxial rotor system for helicopters

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

Reexamination Certificate

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Compound helicopter drive means

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

Patent

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Constant-speed twin spool turboprop unit

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

Patent

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Contra-rotating bearing device for contra-rotating propeller

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

Patent

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Contrarotating propeller type propulsion system

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

Patent

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Counter propeller propulsion unit

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

Reexamination Certificate

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Counter rotating bypass propeller

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

Reexamination Certificate

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Counterrotating power turbine

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

Patent

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Double propeller drive for boats

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

Patent

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Driving arrangement for watercraft

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

Patent

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