Apparatus for activating a web
US7896641B2 · kind B2 · utility
45Cited by
122References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2008 |
| Grant date | Mar 1, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/4878
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for simultaneously activating two or more portions of a web in different directions. The apparatus includes a pair of intermeshing activation rolls with three-dimensional surface features disposed thereon. The three dimensional surface features are arranged in discrete regions on the rolls such that at least two of the regions provide different directions of activation. The rolls include one or more buffer regions positioned between the discrete regions on the roll that provide different directions of activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.