The Boeing Company

Marco Tullio B Ciccu

John Dempsey Morris

Jonathan A Santiago

Derek J Flolid

Michael A Lee

A breather used for vacuum bag compaction of a composite laminate part is semi-permanently installed on a compaction tool. The breather is a channel member having an internal passageway that routes air and volatiles from the vacuum bag to a vacuum port in the tool.

Semi-permanent vacuum bag breather and installation method

A composite structure including a multi-layer laminate having a plurality of regions each oriented out of plane relative to an adjacent region, and each extending in a longitudinal dimension of the multi-layer laminate, wherein the multi-layer laminate includes at least one ply layer having an oblique fiber orientation relative to the longitudinal dimension, and wherein the at least one ply layer includes a first section and a second section each having a side edge, the first and second sections aligned side-by-side such that a first interface defined between the respective side edges is oriented to extend in the longitudinal dimension.

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Seattle, WA, United States of America

Marco Tullio B Ciccu