Apparatus for making composite filters

Conveyors: power-driven – Conveyor system for arranging or rearranging stream of items – By laterally or vertically moving successive items in...

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Details

Other Related Categories

198450, A24C 550

Type

Patent

Status

active

Patent number

040403416

Description

ABSTRACT:
Filter material is formed into a continuous rod without wrapping and divided into first filter portions which are then spaced apart whilst moving axially. These first filter portions are intercalated with a stream of spaced second filter portions to form an alternating stream which is then continuously wrapped to produce composite filter rod. The resulting composite filters obtained from this rod include less wrapper material than in conventional construction.

REFERENCES:
patent: 3267821 (1966-08-01), Rowlands
patent: 3472355 (1969-10-01), Menge
patent: 3776343 (1973-12-01), Gouy
patent: 3834285 (1974-09-01), Schubert et al.
patent: 3872779 (1975-03-01), Jackson

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