Process and apparatus for air forming an article having a plurality of superimposed fibrous layers
US6982052B2 · kind B2 · utility
83Cited by
101References
46Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Jan 3, 2006 |
| Priority date | — |
| Expiry date | Apr 22, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F13/15707
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Process and apparatus for air forming an article having a plurality of superimposed fibrous layers. The layers are formed in substantially discrete forming chambers by depositing fibrous material on a forming surface which moves along an arcuate path through the chambers. A first layer is air-formed on the forming surface as the surface moves through the first forming chamber and a second layer is air-formed over the first layer as the surface moves through the second forming chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.