Article comprising a dry fabric seal for liquid resin molding processes
US8337731B2 · kind B2 · utility
0Cited by
24References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2009 |
| Grant date | Dec 25, 2012 |
| Priority date | — |
| Expiry date | Jan 5, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2023/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A dry fabric seal for use with tooling for liquid resin molding processes and a method for creating the seal are disclosed. In the illustrative embodiment, the seal comprises an annular resin reservoir, a level of resin within the reservoir, a device for controlling the resin level, and a perforated pressure plate that forms one wall of the reservoir. The seal is created by controlling the level of resin between the tooling (e.g., the inner and outer molds, etc.) so that air cannot leak in (for vacuum processes) or out (for pressurized processes) between the fibers in the fabric near the top of the molds.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.