Tobacco – Cigar or cigarette making – Including perforating
Patent
1990-12-07
1993-02-16
Millin, V.
Tobacco
Cigar or cigarette making
Including perforating
131904, 73 38, 73 41, A24C 500
Patent
active
051861836
ABSTRACT:
In an apparatus for detecting micro-holes of a cigarette having a filtered section, cigarettes are successively carried to a support section which is rotated and each of the cigarettes is supported between pads 14a and 14b. The supported cigarette is moved to a pre-pressuring stage in which one end face of the cigarette is closed and a pre-pressure is applied to other end face of the cigarette from a pre-pressure source. Therefore, the cigarette is reached to a measuring stage in which a measuring pressure is applied to the other end face of the cigarette so that air flows through micro-holes of the filter section and a reduced pressure is appeared in the one end of the cigarette. The measuring and reduces pressures are detected by pressure transducers and electrical signals from the transducers are proceed so that dilution value of the cigarette is calculated.
REFERENCES:
patent: 4034600 (1977-07-01), Motle
patent: 4177670 (1979-12-01), Heitmann et al.
patent: 4406156 (1983-09-01), Pezzi
patent: 4860773 (1989-08-01), Okumoto et al.
patent: 4955398 (1990-09-01), Milner et al.
Adachi Kazuyu
Komori Mikio
Saito Masayoshi
Sato Shuichi
Doyle Jennifer
Japan Tobacco Inc.
Millin V.
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