Methods to fabricate needled preforms with randomly oriented short length carbon fibers

US9873231B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9873231-B2
Application numberUS-201414230246-A
CountryUS
Kind codeB2
Filing dateMar 31, 2014
Priority dateMar 31, 2014
Publication dateJan 23, 2018
Grant dateJan 23, 2018

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Abstract

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A method and apparatus for fabricating a short length carbon fiber preform with a through thickness reinforcement is disclosed herein. The starting media for fabricating a net shape (e.g., annular disc) may meet specific requirements including a sufficient fiber volume and a binding mechanism compatible with the needle-punching process.

First claim

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What is claimed is: 1. A method comprising: opening, blending and webbing in random fiber orientation a plurality of short length carbon fiber bundles and a thermoplastic binder material to form a blend, wherein the short length carbon fiber bundles comprise short length carbon fibers less than about 3 inches in length; locally applying heat and pressure to an annular portion of the blend of the plurality of short length carbon fiber bundles and the thermoplastic binder material…

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What does patent US9873231B2 cover?
A method and apparatus for fabricating a short length carbon fiber preform with a through thickness reinforcement is disclosed herein. The starting media for fabricating a net shape (e.g., annular disc) may meet specific requirements including a sufficient fiber volume and a binding mechanism compatible with the needle-punching process.
Who is the assignee on this patent?
Goodrich Corp
What technology area does this patent fall under?
Primary CPC classification B29C70/502. Mapped technology areas include Operations & Transport.
When was this patent published?
Publication date Tue Jan 23 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).