Jet velocity vector profile measurement and control
US7399380B2 · kind B2 · utility
2Cited by
0References
26Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 10, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Mar 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S162/11
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a papermaking system having a headbox to dispense a jet of liquid and paper forming fibers, an improvement comprising at least one sensor arrangement for simultaneously or sequentially measuring in at least one location the jet velocity or jet flow correlation of the jet at plural known angles relative to the machine direction. The measured data is analyzed to generate a velocity vector profile or velocity direction profile of the jet, and hence to determine the profile of fiber orientation angles laid down in the sheet formed of the jet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.