Air knife configured to improve rolling of paper product
US10071871B2 · kind B2 · utility
1Cited by
23References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 5, 2014 |
| Grant date | Sep 11, 2018 |
| Priority date | — |
| Expiry date | Nov 11, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2801/84
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Described herein are methods and systems for minimizing folding defects when rolling a paper product. The method comprises rotating a roll in a manner that draws a paper product toward the roll. The location of a pick-up point between the roll and the paper product is altered by influencing the air pressure experienced by the paper product. This may be accomplished by flowing air in one of several manners described in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.