Measurement system for improved paper roll runnability
US7780817B2 · kind B2 · utility
16Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 26, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Dec 14, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2515/314
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for measuring both caliper and tension of a web such as paper wound into a roll. The method may include a standard caliper sensor whose air supply is selectively modified to allow for both the measurement of caliper and tension of the web. In another embodiment two similar or identical measurement devices are installed in tandem where one device measures tension without pinching the sheet and the other device measures caliper. The sensor may include two sheet guides for providing support for tension measurement or one or both sheet guides can be eliminated by support from machinery rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.