Chopper and corner rounder for a web material
US5562009A · kind A · utility
2Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Apr 3, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/4786
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A chopper and corner rounder (10) for a web material includes tool pairs (14, 16; 18, 20) driven by two double eccentrics (22, 24), the first double eccentric driving the upper knife by a first eccentric and the upper punch by a second eccentric, the first and second eccentrics being 180.degree. out of phase; the second double eccentric driving the lower knife by a third eccentric and the lower die by a fourth eccentric, the third and fourth eccentrics being 180.degree. out of phase. The first double eccentric is driven at the same speed but in the opposite direction as the second double eccentric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.