Reinforced stiffeners and method for making the same

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United States of America Patent

PATENT NO 9981444
SERIAL NO

13928760

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Abstract

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A composite stiffener is fabricated using preforms of laminated, unidirectional composite tape. The stiffener includes a void that is reinforced by a filler wrapped with a structural adhesive. The surfaces of the preforms surrounding the void include a layer of composite fabric which is bonded to the filler by the adhesive, thereby increasing the toughness of stiffeners around the void and improving pull-off strength of the stiffener.

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Patent Owner(s)

Patent OwnerAddress
THE BOEING COMPANY929 LONG BRIDGE DRIVE ARLINGTON VA 22202

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Deobald, Lyle R Shoreline, US 8 124
Harris, Christopher G Auburn, US 17 527
Iden, Mark C Burien, US 3 63
Lee, Karl B Kirkland, US 5 93
Marcoe, Jeffery L Bellevue, US 14 195
Morris, John D Seattle, US 45 987

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