Method and apparatus for ventilated cigarette manufacture
US4569359A · kind A · utility
11Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 1984 |
| Grant date | Feb 11, 1986 |
| Priority date | — |
| Expiry date | Mar 13, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S131/905
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Apparatus for making ventilated cigarettes, includes a first perforator which is not readily susceptible to control and is arranged to perforate the tipping paper by which cigarettes are joined to filter portions, or to perforate the completed filter cigarettes. A controllable perforator is arranged to form additional perforations in the tipping paper prior to assembly of the filter cigarettes; and a control circuit is arranged to control the controllable perforator in response to a porosity measuring device and/or in response to a cigarette dilution testing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.