Rotor blade visual lights

Details Rotor blade visual lights Rotor blade visual lights

2007-03-12

2010-12-21

Owens, Douglas W (Department: 2821)

Fluid reaction surfaces (i.e., impellers)

With illumination means

C416S103000, C416S120000, C244S017110, C315S291000

Reexamination Certificate

active

07854590

ABSTRACT:
A rotorcraft, such a helicopter or a tiltrotor aircraft, includes a light emitting device configured to provide light at a tip of a rotor blade. The light emitting device includes a light emitting diode arranged on the rotor blade, and a power source, wherein the power source is configured to power the light emitting diode due to a movement of the rotor blade. The power source may include a piezo-electric material configured to create a voltage due to movements of the rotor blade or an electrical generator including a stationary magnet assembly and a moveable coil assembly arranged on a shaft that rotates the rotor blade.

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International Preliminary Report On Patentability for PCT/US2007/006149, issued on Apr. 14, 2009.

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