Method of converting cotton waste to mulch
US7350726B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 11, 2005 |
| Grant date | Apr 1, 2008 |
| Priority date | — |
| Expiry date | Jan 25, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01F2035/99
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Cotton waste is transferred to a heated reactor and mixed with a pigment in the presence of steam. Cotton waste is converted to mulch by a plurality of rotating mixing elements disposed in the reactor and which mix, cut and/or chop the cotton waste therein. In particular, the reactor includes a cylindrical wall section and a longitudinal drive shaft extending through the reactor. A series of radial arms extend from the drive shaft. Mounted on the terminal ends of the radial arms is a first set of mixing elements. As the drive shaft is driven, these mixing elements move adjacent the inner surface of the cylindrical wall section. Further, there is provided a second set of mixing elements disposed adjacent the inner face of the cylindrical wall section. These rotary mixing elements are secured to a shaft that extends through the cylindrical wall section at an angle to the longitudinal drive shaft. The second set of mixing elements cooperate with the first set of mixing elements to cut or chop and transform the cotton waste into mulch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.