Absorbent structure containing a contoured batt
US4690853A · kind A · utility
12Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 1986 |
| Grant date | Sep 1, 1987 |
| Priority date | — |
| Expiry date | May 19, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24653
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A scarfing method and apparatus are disclosed for making a longitudinally and transversely contoured batt on a moving fibrous web. The apparatus comprises a scarfing roll disposed on one side of a foraminous belt and a contouring roll, having a nonuniform surface, disposed on the opposite side of the belt. As the contouring roll is rotated, it raises the belt and the fibrous web towards the scarfing roll, according to the shape of the nonuniform surface. Hence, a contour is provided in the direction of movement of the web. The transverse contour can be provided by the shape of the scarfing roll itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.