Propeller blade with reinforcing spars and boxes, and propeller comprising at least one such blade

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9365285
APP PUB NO 20130164142A1
SERIAL NO

13721727

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Abstract

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The invention relates to a propeller blade which comprises a hollow casing (1) forming an extrados (5) and an intrados (4) which extend from a blade shank to a free end in the direction of the span, and a framework which is arranged in the hollow casing (1) and comprises a box spar (8), having a plurality of soles (9a, 9b, 10a, 10b) in surface contact with the hollow casing (1) so as to provide structural support for the hollow casing (1), and at least two cavities (15, 16) which are spaced apart in the direction of the chord (25), wherein the propeller blade further comprises at least two reinforcing spars (6, 7) which extend between the framework and the hollow casing.

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Patent Owner(s)

Patent OwnerAddress
RATIER FIGEACAVENUE RATIER FIGEAC F-46100

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Petellaz, Bruno Beduer, FR 9 30
Tutaj, Stanislas Faycelles, FR 4 21

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