Cigarette testing device
US4325250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1980 |
| Grant date | Apr 20, 1982 |
| Priority date | — |
| Expiry date | Apr 30, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M3/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for testing filter cigarettes, comprises a drum or equivalent means for conveying cigarettes in succession through a test station at which each cigarette in turn is tested with the aid of a pressure chamber surrounding the wrapper of the cigarette, and a pressure detector connected to the filter end of the cigarette while the tobacco end of the cigarette is open to atmosphere, and including means for measuring the pressure in the pressure chamber and means for comparing that pressure with the pressure detected at the filter end of the cigarette. Preferably there is a second test station at which the pressure chamber extends over the tobacco end of the cigarette, and a second pressure detector is connected to the filter end of the cigarette.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.