Paper structures having at least three regions including a transition region interconnecting relatively thinner regions disposed at different elevations, and apparatus and process for making the same
US5556509A · kind A · utility
250Cited by
37References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1994 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Jun 29, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24455
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A paper structure having at least three regions is disclosed. The paper structure has a first region, a patterned second region, and a third transition region connecting the first and second regions. The first and second regions are disposed at different elevations, and can each have a thickness less than a thickness of the transition region. An apparatus and process for making such a paper structure are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.