Corrugated stiffening devices utilizing peaks and valleys and methods of manufacture
US11993388B2 · kind B2 · utility
0Cited by
23References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 2, 2021 |
| Grant date | May 28, 2024 |
| Priority date | — |
| Expiry date | Sep 2, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/6034
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method may comprise: laying up a first plurality of plies of material comprising thermoplastic resin and fiber to form an inner skin preform, the inner skin preform being a continuous sheet including alternating peaks and valleys; laying up a second plurality of plies of material comprising thermoplastic resin and fiber to form an outer skin preform; and joining the inner skin preform to the outer skin preform.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.