Machine for manufacturing composite filters

Details Machine for manufacturing composite filters Machine for manufacturing composite filters

2011-04-12

2011-04-12

Tawfik, Sameh H. (Department: 3721)

Manufacturing container or tube from paper; or other manufacturi

Cigarette filter making

C493S044000, C493S050000

Reexamination Certificate

active

07922638

ABSTRACT:
Composite filters are assembled initially by an upstream unit as groups of at least two plugs having different filtration properties. A single flow of the groups is directed from the assembling unit onto a pair of drums and divided into two flows, whereupon these are taken up by two pitch-adapting drums rotating substantially tangential one to another about parallel axes, and released to a rotating member turning on an axis normal to the axes of the drums and equipped with a plurality of carriers by which pairs of the groups are transferred from the drums to the twin channels of a garniture tongue along which two continuous rods of composite filters are formed. The carriers are equipped with an arm presenting a portion angled relative to the axis of the rotating member, so that two groups can be picked up at a time from the drums and deposited simultaneously in the channels.

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patent: 7226404 (2007-06-01), Rizzoli et al.
patent: 7530444 (2009-05-01), Draghetti et al.
patent: 2004/0237972 (2004-12-01), Horn
patent: 2006/0213528 (2006-09-01), Draghetti
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patent: 1 287 753 (2003-03-01), None
patent: 1 704 788 (2006-09-01), None

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