Mask and papermaking belt made therefrom
US12297596B2 · kind B2 · utility
0Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 2023 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Feb 11, 2043 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/002
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A fibrous structure may have a lower side and an upper side, and may comprise three-dimensional, out-of-plane features formed by knuckles on a papermaking belt, the features may exhibit at least two Z-direction spatially separated surfaces defined in order spatially with respect to the lower side, wherein each successive surface progressing in a Z-direction away from the lower side may have a projected area less than the projected area of the surface adjacent and closer to the lower side, and each projected area may be bounded completely by the area of the projected area of the surface adjacent and closer to the lower side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.