Fiberglass reinforced plastic products having increased weatherability, system and method
US8632708B2 · kind B2 · utility
2Cited by
18References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2007 |
| Grant date | Jan 21, 2014 |
| Priority date | — |
| Expiry date | Jun 8, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/249921
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method for making a ladder rail includes the steps of using a central reinforcement to carry structural resin and maintain distribution of structural resin through an impregnation process, wherein the central reinforcement is fed to a curing die at a rate of greater than 5 ft/min. There is the step of forming the rail.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.