Method of and apparatus for distribution of paper stock in paper or board making machinery
US7001488B2 · kind B2 · utility
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24References
11Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 23, 2002 |
| Grant date | Feb 21, 2006 |
| Priority date | — |
| Expiry date | Dec 30, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F1/026
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An inlet chamber is connected to a nozzle section by way of a plurality of tubes. Diluting liquid for mixing with paper stock flowing through one or each of said tubes is fed into the tube via annular inlet means. To ensure thorough mixing, channel means leading into the annular inlet means is configured to create turbulent flow of diluting liquid prior to its introduction into the tube, for example, by consisting of a helical or spiral duct, or by being provided internally with baffle means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.