Apparatus and method for advancing a web
US5825374A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 12, 1997 |
| Grant date | Oct 20, 1998 |
| Priority date | — |
| Expiry date | Mar 12, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65H2406/31
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an apparatus for intermittently advancing a web, only one surface of the web contacts moving parts of the apparatus. The apparatus includes, in a direction of movement of the web, a device for supplying the web, a first dancer roller arrangement, an intermittently driven drive roller, a second dancer roller arrangement, and a take-up device. The first and second dancer roller arrangements function to isolate a portion of the web from inertia in other portions of the web, and to provide substantially constant tension on opposite sides of the drive roller to prevent slippage and ensure accurate intermittent advancement of the web by the drive roller. A method for intermittently advancing a web is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.