B - Operations – Transporting – 07 – B
Patent
B - Operations, Transporting
07
B
209/29.13
B07B 1/00 (2006.01) A24C 5/34 (2006.01) G01N 15/08 (2006.01)
Patent
CA 1186655
Improvements Relating to the Monitoring of Rod-Like Articles A B S T R A C T The invention is based on the realisation 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.
402253
Dagnall Roger B.
Milner John K.
British-American Tobacco Company Limited
Fetherstonhaugh & Co.
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