Relating to the monitoring of rod-like articles

Details Relating to the monitoring of rod-like articles Relating to the monitoring of rod-like articles

1982-05-04

1990-09-11

Millin, V.

Tobacco

Cigar or cigarette making

131904, 131908, 73 37, 73 375, 73 378, A24B 560

Patent

active

049553984

ABSTRACT:
The invention is based on the realization that for a rod-like article, a cigarette for example, having a plurality of ventilation gas flows, the flows can be equated to a single equivalent flow nominally occurring at an "equivalent ventilation point". By establishing one or more flow regimes in a rod-like article and measuring gas pressures, the articles can be monitored for displacement of the equivalent ventilation point, such displacement being indicative of the position of out-of-specification gas flows.

REFERENCES:
patent: 4103535 (1978-08-01), Mutter et al.

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