Apparatus and method for cutting sheet material
US7455004B2 · kind B2 · utility
4Cited by
26References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 6, 2003 |
| Grant date | Nov 25, 2008 |
| Priority date | — |
| Expiry date | Jun 14, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9447
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The apparatus for trimming sheet material includes a top knife and an opposing bottom knife for trimming sheet or web material passing between the top and bottom knives. The top knife defines a negative rake angle with a substantially vertical plane passing through a cutting edge of the bottom knife. The negative rake angle may be between about −10° and −30° and, more preferably, between about −12° and −20°. The top and bottom knives may be disk or block knives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.