System including breakaway fasteners for fabrication of composite parts

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11988237
APP PUB NO 20220034353A1
SERIAL NO

16944441

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Importance

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Abstract

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A system including mold pieces coupled together with breakaway bolts or other fasteners for facilitating the fabrication of composite parts for, e.g., aerospace vehicles. First and second mold pieces are coupled together to form a mold within which the composite part is fabricated from a composite material. A coefficient of thermal expansion of the mold pieces is higher than a coefficient of thermal expansion of the composite part. One or more breakaway fasteners couple together the mold pieces while the mold pieces and the composite material are heated, and then purposefully break and thereby decouple the mold pieces and release the composite part when the mold pieces are cooled. The fasteners may be constructed from polytetrafluoroethylene, may include a structural weakness to ensure breakage, may break into two or more pieces when under a tension or a sheering force, or may include threads that sheer when under a tension force.

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Patent Owner(s)

  • SPIRIT AEROSYSTEMS, INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Champa, Michael Arthur Clearwater, US 4 54
Nelson, Matthew J Wichita, US 4 33

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