Perforation burst cone device
US4454973A · kind A · utility
32Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 26, 1982 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Nov 26, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T225/35
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A bursting apparatus for separating sheets in a continuous intermittently perforated form web is disclosed. The apparatus includes a feed roller, a burst roller and a bursting device, said bursting device disposed between said feed roller and said burst roller and comprising two horizontally positioned cone sections wherein their base portions are adjacent to each other and are encircled at least in part by a bursting ring, said bursting ring having a portion extending beyond said cone base portions in at least a portion of its outer periphery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.