Patent · US Expired

Apparatus for making cigarettes with composite filters

US6701934B2 · kind B2 · utility

5Cited by

3References

2Claims

0Family size

Assignee

HAUNI MASCHINENBAU GMBH · DE

Inventors

Siegfried Schlisio · Geesthacht, DE
Erwin Oesterling · Hamburg, DE

Key dates

Filing date	Jul 12, 2002
Grant date	Mar 9, 2004
Priority date	—
Expiry date	Aug 20, 2022

Classification

Technology area (CPC A)Human Necessities
CPC primaryA24C5/478
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

Double-filter cigarettes are produced by inserting different filter components between two rods of tobacco. This is attained by inserting filter components of different final lengths, obtained from separate supplies and processed along separate feed paths, successively between the tobacco rods.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.