Free air dilution smoke filter and method and apparatus for fabr

Details Free air dilution smoke filter and method and apparatus for fabr Free air dilution smoke filter and method and apparatus for fabr

1984-10-03

1985-11-12

Millin, Vincent

Tobacco

Cigar or cigarette making

Tip or mouthpiece applying or forming

131336, 131361, 493 42, 156209, 156115, A24C 552, A24D 302

Patent

active

045521581

ABSTRACT:
An improved tobacco smoke filter is characterized by grooves defined in its outer periphery and extending to the smoke discharging end of the filter. The grooves are totally exposed to ambient air along their entire length and serve as open air dilution passages to conduct air into the smoker's mouth with each puff or draw. In one embodiment, the filter rod contains no plug wrap and is joined to a tobacco rod with tipping paper, the grooves being defined in both the tipping paper and the filter rod. These grooves may be defined in the final assembled product by forming the grooves in the tipping paper and the filter rod at the same time. Alternatively, the filter rod is pre-grooved and the tipping paper is attached thereto so as to conform to the grooves. In another embodiment, the filter rod is wrapped with a suitable plug wrap which is either grooved simultaneously with the rod or applied to conform to the pre-grooved rod; a short tipping paper ring is then applied to the joint between the filter rod and the tobacco rod.

REFERENCES:
patent: 70385 (1867-11-01), Alexander
patent: 3470008 (1969-09-01), Watson
patent: 3910288 (1975-08-01), Hammersmith et al.
patent: 4164438 (1979-08-01), Lebet
patent: 4201232 (1980-05-01), Kaye
patent: 4324540 (1982-04-01), Sextone et al.
patent: 4338956 (1982-07-01), Sanford et al.
patent: 4365641 (1982-12-01), Johnson
patent: 4387728 (1983-06-01), Reynolds et al.

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