Method and machine for making a filter rod

US4283998A · kind A · utility

Assignee

• Hauni-Werke Korber & Co. K.G. · DE

Inventors

• Heinz Greve · Cologne, DE
• Gerhard Tolasch · Bargteheide, DE
• Uwe Heitmann · Hamburg, DE
• Gunter Wahle · Reinbek, DE

Key dates

• Filing date: Mar 29, 1979
• Grant date: Aug 18, 1981
• Expiry date: Mar 29, 1999

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24D3/0295
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

The mass of successive increments of a wrapped rod-like filler of filamentary filter material is monitored by a beta ray detector and the signals which are generated by the ionization chamber of the dectector are utilized to adjust the ratio of a variable-speed transmission which regulates the rate of delivery of a stretched tow of filamentary material to the gathering horn of a filter rod making machine.