Tobacco – Tobacco users' appliance – Cigar tip perforators or slitters
Patent
1977-10-31
1980-09-23
Coan, James F.
Tobacco
Tobacco users' appliance
Cigar tip perforators or slitters
131261A, 131263, A24C 550
Patent
active
042235979
ABSTRACT:
In a method of producing a cigarette filter, the filter material being visible through a filter chamber, the steps include spacing a plurality of filter elements successively apart at uniform separating distances, joining the filter elements to a continuous covering strip along a longitudinal portion thereof, so as to cover the filter elements continuously to form a filter cord having a plurality of the chambers, and so that lateral edges of the covering strip define a predetermined constant width of a slit extending over the entire length of the filter cord, and a plurality of openings extending over the separating distances, respectively, in the filter cord, sliding a filling device adapted to hold granular filter material over the openings in intimate contact with smooth surface portions of the covering strip, filling the chambers with the granular filling material, sealing the chambers upon completion of the filling step by a sealing strip, and cutting the filter cord into a plurality of individual sections.
REFERENCES:
patent: 3368566 (1968-02-01), Avedikian
patent: 3370592 (1968-02-01), Schultze et al.
patent: 3482488 (1969-12-01), Sexstone
patent: 3807286 (1974-04-01), Sexstone
Baumgartner Papiers S.A.
Coan James F.
Marmorek Ernest F.
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