Paper web separator and deflector
US5374042A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 27, 1993 |
| Grant date | Dec 20, 1994 |
| Priority date | — |
| Expiry date | Oct 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/2196
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A compact interstacking web deflector for causing a slit paper web to overlap one side of the web over the other. The web deflector includes an elevated deflector bar skewed to the path of the slit web. The elevated deflector imparts a twists to one of the sections of the slit web as the web section flows downward in a loop between the web slitting device and a burster device. The other web section is twisted in an opposite angle to the first section as the other web section drops downward over a skewed leading edge on the slitter device. The opposing twists imparted to the side-by-side sections causes the web sections to merge towards the centerline of the web path and overlap each other. The twists in the web sections are removed as the sections loop under a pair web loop ledges at the bottom of the web loops. In this manner, the paper webs are superimposed one over the other for subsequent processing. The device allows the slit webs to be stacked one on top of the other and as well as to be offset lengthwise by as much as 50% of the form depth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.