Patent · US Expired

Continuous rod machine arrangement for producing nonwoven filters

US7318797B2 · kind B2 · utility

1Cited by

10References

13Claims

0Family size

Assignee

HAUNI MASCHINENBAU GMBH · DE

Inventors

Alexander Buhl · Robertsdorf, DE
Jann DeBoer · Hamburg, DE
Sonke Horn · Geesthacht, DE
Irene Maurer · Hamburg, DE
Thorsten Scherbarth · Geesthacht, DE
Stephan Wolff · Glinde, DE
Peter-Franz Arnold · Hamburg, DE

Key dates

Filing date	Aug 31, 2005
Grant date	Jan 15, 2008
Priority date	—
Expiry date	Aug 31, 2025

Classification

Technology area (CPC A)Human Necessities
CPC primaryA24D3/0208
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

The invention relates to a method for producing a nonwoven fiber composite for the manufacture of filters in the tobacco industry, wherein the method feeds separated fiber materials to a fluidized bed and the separated filter material inside the fluidized bed are transported to a rod-forming device, essentially by a transport air flow flowing in the direction of the rod-forming device and the filter material is compiled on the rod-forming device prior to forming the compacted fiber filter elements.

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