Die with flow diffusing gate passage and method for impregnating same fiber rovings
US9623437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 26, 2012 |
| Grant date | Apr 18, 2017 |
| Priority date | — |
| Expiry date | Mar 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29K2105/08
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A die and a method for impregnating fiber rovings with a polymer resin are disclosed. The die includes a manifold assembly (220), an impregnation zone (250), and a gate passage (270). The manifold assembly (220) flows the resin therethrough, and includes a channel (222). The impregnation zone (250) is in fluid communication with the manifold assembly (220), and is configured to impregnate the roving with the resin. The gate passage (270) is between the manifold assembly (220) and the impregnation zone (250), and flows the resin from the manifold assembly (220) such that the resin coats the roving. The gate passage (270) includes a projection (300). The projection (300) is configured to diffuse resin flowing through the gate passage (270).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.