Method of and apparatus for making rod-shaped articles of the tobacco processing industry
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United States of America Patent
Stats
-
Nov 6, 1990
Grant Date -
N/A
app pub date -
Jun 9, 1989
filing date -
Jun 11, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Cigarettes are produced by gathering shredded tobacco into a stream which is moved longitudinally and is draped into a web of cigarette paper to form a rod which is subdivided into cigarettes of desired length. In order to impart to the cigarettes predictable characteristics, particularly hardness, draw resistance, number of puffs per cigarette, nicotine content, carbon monoxide content and tar content, the operation of the trimming device which removes the surplus from the stream prior to draping is regulated as a function of third signals which are generated on the basis of first signals denoting the monitored density of the stream, second signals denoting the monitored or calculated filling power of tobacco, and a number of functional equations which denote predetermined regular relationships between the parameters denoted by the first and second signals and the aforementioned characteristics of cigarettes.
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