Apparatus for laser perforation of transported articles
US4349719A · kind A · utility
5Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1980 |
| Grant date | Sep 14, 1982 |
| Priority date | — |
| Expiry date | Jun 16, 2000 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/0823
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Perforations are made at locations spaced about the periphery of a cigarette by conducting separate parts of a laser beam through respective separate light paths which intersect such spaced peripheral locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.