Refiner plate with wave-like groove profile
US11141735B2 · kind B2 · utility
2Cited by
26References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2018 |
| Grant date | Oct 12, 2021 |
| Priority date | — |
| Expiry date | Jan 15, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21D1/306
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A refiner plate segment including a plurality of bars and grooves for refining lignocellulosic materials, where the grooves between adjacent bars includes a plurality of teeth having a wave-like profile with alternating high and low points. The wave-like profile of the teeth within the grooves increases turbulence in the refining process to tumble the fibers and push them toward the refining gap to reduce energy and improve the efficiency of the fiber reduction process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.