Method and apparatus for producing a roll of bathroom tissue or kitchen toweling with a pattern being repeated between each pair of transverse perforations
US5839688A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 8, 1997 |
| Grant date | Nov 24, 1998 |
| Priority date | — |
| Expiry date | Aug 8, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/148
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for producing a roll or log of bathroom tissue or kitchen toweling with a pattern being repeated between each pair of transverse perforations wherein an extensible web having a pattern thereon repeated at equally longitudinally spaced position is advanced along a path toward a rewinder having a knife-equipped perforator and a cutoff mechanism. A detector senses the position of each pattern and also sensed is the position of the perforation knife with the positions being reported to a controller. The perforation knife is adjusted to insure that each perforation is between pattern positions and the cutoff mechanism is adjusted to stay in time with the transverse lines of perforations to provide a selected count of patterns in each winding cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.