Cigarette monitoring

Measuring and testing – With fluid pressure – Dimension – shape – or size

Patent

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Details

73 38, 73 73, 131904, A24C 500

Patent

active

045677522

ABSTRACT:
A cigarette making machine includes apparatus for determining the internal pressure of an axially moving cigarette rod comprising forming a continuous rod in which a wrapper web surrounds a tobacco filler including an endless impervious flexible tape arranged to be wrapped around at least part of the circumference of the rod, a guide through which the rod and tape are arranged to pass, means for supplying air under pressure to the guide to enter a gap between the guide and the tape; and a monitor for monitoring a physical characteristic of the supplied air. Also included is compensating for the effect which moisture in the tobacco has on the internal pressure of the cigarette rod.

REFERENCES:
patent: 3585844 (1971-06-01), Dornseiffen
patent: 3633590 (1972-01-01), Pocock et al.
patent: 3841337 (1974-10-01), Varner
patent: 4121450 (1978-10-01), Zurcher
patent: 4280516 (1981-07-01), Reuland
patent: 4284087 (1981-08-01), Reuland
patent: 4326542 (1982-04-01), Laszlo et al.

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