Method to transport and lay down dry fiber bundles
US-2015273811-A1 · Oct 1, 2015 · US
Method of forming an annular textile preform by needling a helical fiber sheet, and a machine for performing such a method
US11725318B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11725318-B2 |
| Application number | US-202117455129-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 16, 2021 |
| Priority date | Sep 1, 2017 |
| Publication date | Aug 15, 2023 |
| Grant date | Aug 15, 2023 |
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- Title
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Abstract
Official abstract text for this publication.
A machine for forming an annular textile preform includes: a horizontal sheet-forming turntable for forming a helical fiber; a horizontal intermediate turntable positioned under the sheet-forming turntable; a horizontal intermediate unwinder positioned on the intermediate; a final horizontal unwinder positioned under the intermediate unwinder; and a horizontal preform-forming turntable positioned under the final unwinder.
First claim
Opening claim text (preview).
The invention claimed is: 1. A circular needling machine, the machine comprising: a horizontal sheet-forming turntable for forming a helical fiber sheet and driven at a constant and predefined speed of rotation N FS ; a horizontal intermediate turntable positioned under the sheet-forming turntable and driven at a speed of rotation N FI ; a horizontal intermediate unwinder positioned on the intermediate turntable and driven at a speed of rotation N DI ; a final horizontal unwinder positioned under the intermediate unwinder and driven at a speed of rotation N DF ; and a horizontal preform-forming turntable positioned under the final unwinder and driven at a variable and predefined speed of rotation N FP . 2. The machine according to claim 1 , further comprising a regulator chute for regulating unwinding of the helical fiber sheet and positioned between the final unwinder and the preform-forming turntable. 3. The machine according to claim 1 , wherein each of the intermediate and final unwinders comprises two curved circular conveyor portions arranged facing each other.
Assignees
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Classifications
- D04H18/02Primary
with needles · CPC title
Reinforcing materials; Prepregs · CPC title
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Frequently asked questions
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- What does patent US11725318B2 cover?
- A machine for forming an annular textile preform includes: a horizontal sheet-forming turntable for forming a helical fiber; a horizontal intermediate turntable positioned under the sheet-forming turntable; a horizontal intermediate unwinder positioned on the intermediate; a final horizontal unwinder positioned under the intermediate unwinder; and a horizontal preform-forming turntable position…
- Who is the assignee on this patent?
- Safran Landing Systems
- What technology area does this patent fall under?
- Primary CPC classification D04H18/02. Mapped technology areas include Textiles & Paper.
- When was this patent published?
- Publication date Tue Aug 15 2023 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).