Rotorcraft blade provided with a spar incorporating a...

Details Rotorcraft blade provided with a spar incorporating a... Rotorcraft blade provided with a spar incorporating a...

2009-01-22

2011-11-22

Lebentritt, Michael (Department: 2829)

Fluid reaction surfaces (i.e., impellers)

Having positive means for impeller adjustment

Motor bodily rotatable with impeller hub or shaft

C416S22900R, C416S230000, C416S24100B

Reexamination Certificate

active

08061991

ABSTRACT:
A rotorcraft blade is provided with a rigid attachment filler (1) and with a spar (40) that extends from a root (51) of the blade to a free end (52) of the blade, the attachment filler (1) having top, bottom, front, rear, left side, and right side faces (2, 3, 4, 5, 7, and6). The spar (40) then includes a succession of fiber layers (31, 32, 33) that hold the attachment filler (1) captive at the root (51) of the blade, the spar (40) being secured to the top, bottom, front, rear, and left side faces (2, 3, 4, 5, and7) of the attachment filler (1).

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Priority Search Report dated Aug. 25, 2008, in priority application.

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