Manufacturing container or tube from paper; or other manufacturi – Cigarette filter making – With shaping or compacting of filter material
Patent
1979-03-14
1984-03-13
Derrington, James H.
Manufacturing container or tube from paper; or other manufacturi
Cigarette filter making
With shaping or compacting of filter material
425297, 425304, 425385, 425392, 493 42, 493 43, 493 49, A24C 550
Patent
active
044365179
ABSTRACT:
In apparatus for making transverse-flow cigarette filters, a rod of cellulose acetate impregnated with a plasticizing agent and having a porous covering is cut into sections each having a length of several filters. From the cutting station, the rod sections are fed longitudinally into longitudinal grooves in the periphery of a first revolving drum. The rod sections are then transferred into longitudinal grooves in the periphery of a second revolving drum having in such grooves projections for forming indentations in one side of the rod sections. While carried by the second revolving drum, the rod sections are engaged by a third revolving drum having on its periphery projections for forming longitudinally offset indentations in the opposite side of the rod sections. In another embodiment of the apparatus, the rod sections are received in transverse grooves in a conveyor belt, and are transferred in groups between opposed punches which form indentations in opposite sides of the rod sections.
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Adams Bruce L.
Baumgartner Papiers S.A.
Burns Robert E.
Derrington James H.
Lobato Emmanuel J.
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