Corrugated and apertured web
US9925731B2 · kind B2 · utility
0Cited by
191References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 25, 2012 |
| Grant date | Mar 27, 2018 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24322
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Corrugated and apertured web materials are disclosed. More specifically, the webs comprise alternating ridges and grooves, wherein apertures are located in the grooves. In one embodiment, a web comprises alternating ridges and grooves as well as alternating regions of lower basis weight and higher basis weight. The higher basis weight regions are located in the ridges and grooves and the lower basis weight regions are located in the sidewalls between the ridges and grooves. The higher basis weight regions located in the grooves comprise apertures. The apertures have greater open area than previous apertures in similar webs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.