Process of making flexible belts by pultrusion
US6287498A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D29/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of manufacturing flexible belts from fibers. Fibers that form the flexible belt are soaked with a liquid elastomer. The liquid elastomer soaked fibers are formed into the shape of a belt, beneficially by wrapping the fibers around a mandrel. The belt-shaped and soaked fibers are then cured. Multiple layer flexible belts can be formed by soaking fibers with a first liquid elastomer, wrapping those fibers around a mandrel, and then curing the mandrel to form a belt layer. Then, fibers are soaked with a second liquid elastomers. Those soaked fibers are then wrapped around the mandrel/belt layer. The fibers soaked with the second elastomer are then cured, forming a belt having two layers. The formed belt is then removed from the mandrel. The fibers and liquid elastomer(s) are beneficially chosen to introduce desirable belt properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.