Method and apparatus for regulating the resistance of filter rod

Details Method and apparatus for regulating the resistance of filter rod Method and apparatus for regulating the resistance of filter rod

1985-11-01

1987-06-30

Schmidt, Frederick R.

Manufacturing container or tube from paper; or other manufacturi

Control means energized in response to activator stimulated...

Cigarette filter making

156361, 493 42, 493 44, 493 48, B31C 1300

Patent

active

046767690

ABSTRACT:
The pressure of compressed air in one or more nozzles which convert successive increments of a running tow of filamentary filter material into a rodlike filler in a filter rod making machine is regulated in response to variations in the speed of the filler. This ensures that the resistance which the filter rod sections offer the flow of tobacco smoke does not deviate from an optimum value when the speed of the filler is reduced below the nominal speed. The pressure of air which is admitted to the nozzle or nozzles is regulated by a variable-speed blower which compresses air preparatory to admission into the nozzle or nozzles, or by installing in the conduit or conduits for one or more nozzles a pressure regulating valve which is adjusted by a servomotor in response to signals denoting the speed of the filler.

REFERENCES:
patent: 3016945 (1962-01-01), Wexler
patent: 3262181 (1966-07-01), Hawkins et al.
patent: 3323961 (1967-06-01), Gallagher
patent: 3703754 (1972-11-01), Blanc et al.
patent: 3971695 (1976-07-01), Block
patent: 4248139 (1981-02-01), Labbe

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