Bag with coloured sheet for repairing composite panels, and colouration and repair method
US11820089B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 9, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Dec 1, 2041 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3076
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An assembly includes a bag and of a composite panel exhibiting a damaged region to be repaired by polymerization of a repair piece using the bag. The bag includes a sheet intended to be laid over the panel. When the panel and the sheet are laid one atop of the other, the sheet exhibits regions capable of absorbing heat emitted by radiation onto it in a proportion that is dependent on the polymerization temperature needed for that region of the panel that corresponds to it, the radiation being partially absorbed by suitable colouration of the sheet in the region concerned. Determining those regions of the panel in which radiation is less well absorbed than in others means that the heating can be adapted to suit the needs of polymerization in terms of repair and that even polymerization can thus be obtained over the entire damaged region, thereby consolidating the repair.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.