Rotary splitting tool to fabricate a fibrillated web
US5240160A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Feb 28, 1992 |
| Grant date | Aug 31, 1993 |
| Priority date | — |
| Expiry date | Feb 28, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/329
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A rotary splitting tool for splitting a web of plastic material to fabricate a fibrillated web, comprising a rotatable body having a plurality of transverse ridges provided on the periphery in a circumferentially equidistant relationship and extending generally parallel to the central rotation axis, and rows of cutting edges provided on the transverse ridges, respectively. Convex walls are provided on the periphery of the body between the adjacent transverse ridges. The convex wall means receives a web to be split so that oscillation of the web during repeated operations of the cutting edges can be minimized to reduce noise and prevent irregular slits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.