Filter rod manufacture

Details Filter rod manufacture Filter rod manufacture

1980-12-18

1983-05-03

Beck, Shrive P.

Coating apparatus

Control means responsive to a randomly occurring sensed...

Responsive to attribute, absence or presence of work

118672, 118692, 118694, 118325, 118326, 118DIG16, 427 8, 427421, 427424, B05D 102, B05B 900

Patent

active

043817300

ABSTRACT:
The application of fluid additive to a moving filter tow for production of filter rod for cigarettes, is controlled by a system which provides monitoring of rate of application of the additive by weight. Fluid additive, such as plasticizer, is pumped from a measuring cylinder to an applicator booth, excess additive draining back to the cylinder. Pressure in the cylinder is monitored by a transducer and a control circuit is provided to compare the rate of loss of additive from the cylinder (as measured by change in pressure) with a required value and adjust the supply pump by way of a motor and gearbox accordingly. Fluid additive is periodically supplied to the cylinder from a flask and reservoir.

REFERENCES:
patent: 2981638 (1961-04-01), Jones
patent: 3156582 (1964-11-01), Parker
patent: 3605682 (1971-09-01), Groce et al.
patent: 3707859 (1973-01-01), Carr et al.
patent: 3741846 (1973-06-01), Greve
patent: 3862553 (1975-01-01), Schwemmer et al.

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