Method of controlling bulk in folded webs
US5061230A · kind A · utility
3Cited by
9References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1990 |
| Grant date | Oct 29, 1991 |
| Priority date | — |
| Expiry date | Oct 26, 2010 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H45/24
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method of controlling stack back pressure in folding apparatus incorporating sensing the bulk of a stack issuing from folding rolls, forming a signal corresponding to the sensed bulk, comparing the signal with a predetermined signal range and changing the size of an embossing nip gap or pressure whenever the signal is outside of the range.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.