Filter rod making machines
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United States of America Patent
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-
Apr 15, 1986
Grant Date -
N/A
app pub date -
Jun 16, 1981
filing date -
Jun 17, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Plasticizer or other fluid additive is applied to a moving filter tow in an applicator chamber by means of a rotary brush. Uncaptured plasticizer is collected in a container and returned to the chamber for reapplication. The rate of initial application is controlled by a pump and that of reapplication by a restrictor valve; the rates are independently variable. The supplied and collected plasticizer may be applied to different parts of the tow, e.g. to different sides.
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