Carpet recycling method
US6752336B1 · kind B1 · utility
30Cited by
14References
44Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2002 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Jun 22, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W30/66
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The invention is an efficient and cost-effective method of recovering carpet materials by reducing carpet into size-reduced fibers, slurrying the size-reduced fibers in a liquid medium, and then selectively separating the size-reduced fibers in a centrifuge. The present method is particularly appropriate for recovering nylon or polyester face fibers from post-industrial, pre-consumer carpet waste.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.