Manufacture of filters for cigarettes

Details Manufacture of filters for cigarettes Manufacture of filters for cigarettes

1979-02-28

1981-02-03

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Cigarette filter making

73 38, 493 42, A24C 550

Patent

active

042481392

ABSTRACT:
A machine for making cigarette filters from filter tow includes a tow fluffing unit for blowing air into the tow before it is compressed; a suction wheel which compresses the tow while extracting air therefrom; and a tongue which further compresses and shapes the tow and includes longitudinally spaced pressure tappings by which the pressure drop through the tow is detected. The tow feed rate is adjusted automatically to maintain a constant pressure drop. Also, the consumption of tow is monitored and the amount of tow stretching is adjusted automatically to minimize the consumption.

REFERENCES:
patent: T941011 (1975-12-01), Morrison et al.
patent: 3813996 (1974-06-01), Labbe et al.
patent: 3941036 (1976-03-01), Molins et al.
patent: 3974007 (1976-08-01), Greve
patent: 4064791 (1977-12-01), Berger

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