Machine for making recessed composite filter mouthpieces

Details Machine for making recessed composite filter mouthpieces Machine for making recessed composite filter mouthpieces

1979-03-01

1980-12-09

Coan, James F.

Manufacturing container or tube from paper; or other manufacturi

Cigarette filter making

198425, A24C 550

Patent

active

042377781

ABSTRACT:
A continuous filter rod which can be severed to yield recessed composite filter mouthpieces is obtained by feeding groups of assorted dissimilar coaxial filter plugs onto the adhesive-coated side of a running web of wrapping material and inserting a phantom plug of selected length between each previously transferred group and the next-following group to insure that the width of gaps between neighboring groups matches the length of the phantom plug. The phantom plug is withdrawn as soon as the next-following group adheres to the web, and the web is draped around the resulting filler to form therewith a continuous filter rod wherein groups of dissimilar filter plugs alternate with gaps. When the filter rod is severed centrally across a gap, the adjacent portions of the filter rod constitute two recessed filter mouthpieces. Each gap is flanked by plugs consisting of identical filter material.

REFERENCES:
patent: 2953878 (1960-09-01), Schur
patent: 3131612 (1964-05-01), Rowlands
patent: 3143202 (1964-08-01), Rowlands
patent: 3424293 (1969-01-01), Deutschlander
patent: 3662875 (1972-05-01), Salomon
patent: 4044659 (1977-08-01), Bardenhagen et al.
patent: 4093063 (1978-06-01), Calvert et al.

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