Method and apparatus for making filter cigarettes

Details Method and apparatus for making filter cigarettes Method and apparatus for making filter cigarettes

1996-01-22

1997-04-29

Millin, Vincent

Tobacco

Cigar or cigarette making

Including perforating

131365, 131361, A24C 560

Patent

active

056239521

ABSTRACT:
The web of tipping paper which is being advanced in a filter tipping machine from a source to the station where the web is subdivided into uniting bands ready for draping around groups of coaxial plain cigarettes and filter rod sections is provided with projecting portions which are at least partially removed by a rotary grinding tool to provide the web with a pattern of perforations which determine the degree of ventilation of the filter cigarettes. The position of the running web relative to the tool and/or vice versa is adjustable in dependency upon one or more parameters of the finished filter cigarettes to thus vary the permeability of the uniting bands when the one or more monitored parameters of the filter cigarettes depart from the desired values.

REFERENCES:
patent: 2218674 (1940-10-01), Eaton
patent: 3583546 (1971-06-01), Koop
patent: 3625103 (1971-12-01), Giatti
patent: 3683559 (1972-08-01), Kalwaites
patent: 4193409 (1980-03-01), Wahle
patent: 4240448 (1980-12-01), Heitmann
patent: 4323082 (1982-04-01), Helms et al.
patent: 4370942 (1983-02-01), Dowding
patent: 4825883 (1989-05-01), Hinz et al.
patent: 5135008 (1992-08-01), Oesterling et al.

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