Headbox and stock delivery system for a papermaking machine
US7578906B2 · kind B2 · utility
3Cited by
21References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jan 10, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A headbox including a stock dilution profiling arrangement and associated stock delivery systems are provided, which together deliver to the forming section of a papermaking machine a uniform stock flow with more consistent basis weight and fiber orientation profiles than has previously been possible. These improvements in basis weight uniformity and fiber orientation profile provide benefits in paper sheet formation and related paper properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.