Method of and apparatus for making rod-shaped smokers' articles with dense ends
US4844100A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 10, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Sep 10, 2007 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA24C5/3412
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Longitudinally spaced-apart portions of a tobacco stream in a cigarette maker are densified and the stream is then draped into a web of cigarette paper prior to being severed across the densified portions to yield a succession of plain cigarettes each having two dense ends. The characteristics of both ends of some or all of the cigarettes are monitored independently of each other and the resulting signals are totalized and thereupon compared to indicate the extent of deviation of the quality of one dense end from the other dense end. If the deviation exceeds a selected threshold value, the densifying station is shifted nearer to or further away from the severing station so as to eliminate or reduce the differences.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.