Method and apparatus for producing tobacco smoke filter having i

Details Method and apparatus for producing tobacco smoke filter having i Method and apparatus for producing tobacco smoke filter having i

1982-07-22

1985-04-02

Millin, V.

Manufacturing container or tube from paper; or other manufacturi

Cigarette filter making

With shaping or compacting of filter material

493 45, 493 49, 493 50, B31B 2301, B32B 300

Patent

active

045085250

ABSTRACT:
A method and apparatus for producing tobacco smoke filter having an improved tar/carbon monoxide ratio is disclosed. The filter is obtained by sealing off the center portion of the filter with an inner member which is impermeable to the passage of smoke, thus directing all of the smoke to the periphery of the filter. In one embodiment, the inner member is formed as a thin walled tube of a material such as polypropylene, with the tube being crimped to seal one end of the tube. The crimped tube is then overwrapped with a smoke permeable material.

REFERENCES:
patent: 3546325 (1970-12-01), Muller
patent: 3860011 (1975-01-01), Norman
patent: 4022222 (1977-05-01), Berger
patent: 4291711 (1981-09-01), Berger

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