System and method for vacuum bag fabrication
US7438781B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2004 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | May 2, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2309/68
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A system and method for vacuum bag assembly fabrication via the vacuum bag method which reduces the amount of trapped air. The inventive system includes a chamber adapted to contain a vacuum bag and first and second evacuating mechanisms. The first evacuating mechanism serves to evacuate the bag and vent to atmosphere. The second evacuating mechanism serves to evacuate and vent the chamber to atmosphere. Thus, generally, the inventive method includes the steps of placing a vacuum bag lay up in an air tight chamber; and evacuating the vacuum bag lay up and the air tight chamber at the same time. In practice, the assembly would consist of at least two components and a heat curable composition. The components can be parts to be bonded together or layers of cloth to be made into a laminate. In this case, the heat curable composition would be a catalyzed adhesive or resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.