Papermaking refiner plates and method of manufacture
US7779525B2 · kind B2 · utility
34Cited by
16References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 12, 2009 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Mar 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49904
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Replaceable refiner fillings used for refining of lignocellulosic and other natural and synthetic fibrous materials in the manufacture of paper, paperboard, and fiberboard products. The refiner fillings include a pattern of blades and spacers defined by a bar cluster, with the bar cluster being the basis of formation of the filling. A method of manufacture provides bar cluster patterns based on factors including pumping angle, plurality of segments in a refiner filling, and the number of clusters in a segment. A bar set cluster is established for uniform fabrication of bar clusters for the refiner fillings.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.