Apparatus for measuring the draw resistance of a rod of tobacco

Details Apparatus for measuring the draw resistance of a rod of tobacco Apparatus for measuring the draw resistance of a rod of tobacco

1988-03-21

1989-03-14

Millin, V.

Tobacco

Cigar or cigarette making

Molding or forming

131 28, 131280, 131904, A24C 514

Patent

active

048117447

ABSTRACT:
An apparatus for the continuous measurement of the draw resistance of a cigarette, comprising transducer which detects the pressure drop of a gas stream with constant volume, said gas stream being introduced at a format finger of a rod-producing machine into a rod of tobacco fibres. The measured value depending on the flow resistance of said rod is continuously determined and correlates very well with the usual static measurement of the draw resistance of cigarettes, i.e. of the tobacco rod of a cigarette, so that this continous draw resistance measurement during the cigarette production replaces not only the conventional random check but can also be used for controlling the production operation.

REFERENCES:
patent: T941011 (1974-05-01), Morrison et al.
patent: 3411513 (1968-11-01), Knobel
patent: 3595067 (1971-07-01), von der Lohe et al.
patent: 3633590 (1972-01-01), Pocock
patent: 3921644 (1975-11-01), von der Lohe et al.
patent: 4103535 (1978-08-01), Mutter et al.
patent: 4615342 (1986-10-01), Federle et al.
patent: 4685475 (1987-08-01), Ridler et al.

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