Patent · US Expired

Method of and apparatus for making streams containing fibrous materials of the tobacco processing industry

US5060664A · kind A · utility

58Cited by

1References

29Claims

0Family size

Assignee

Korber AG · DE

Inventors

Wolfgang Siems · Hamburg, DE
Andrzej Radzio · Quinton, US

Key dates

Filing date	Dec 23, 1987
Grant date	Oct 29, 1991
Priority date	—
Expiry date	Dec 23, 2007

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S131/906
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A stream of filter tow which has been sprayed with atomized plasticizer is advanced past two detectors each of which monitors the density of the stream in a different way and generates corresponding signals which are processed by an evaluating circuit to generate modified signals which are indicative of the percentage of plasticizer. The modified signals are used to regulate the operation of a pump which controls the rate of admission of plasticizer to successive increments of the tow.

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