Method and device for removing foreign particles from a tobacco stream

US8893723B2 · kind B2 · utility

Assignee

• HAUNI MASCHINENBAU GMBH · DE

Inventors

• Matthias Jahnke · Hamburg, DE
• Harry Drewes · Hamburg, DE
• Torsten Grigutsch · Hamburg, DE
• Hans Dierken · Munster, DE
• David Felts · Denville, US
• Jeroen Erinkveld · Nijmegen, NL
• Diederick van Klaarbergen · Druten, NL

Key dates

• Filing date: Jan 7, 2010
• Grant date: Nov 25, 2014
• Expiry date: Apr 18, 2033

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24B1/04
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Method and device for removing foreign bodies from a first tobacco stream that is conveyed via an air flow in a region of a first foreign body detection device. Method includes detecting, with a first foreign body detection device, the foreign bodies in the first tobacco stream based on at least one property, and removing, with a jet of compressed air, the foreign bodies from the first tobacco stream. In this manner, a foreign body freed tobacco stream and a second tobacco stream including tobacco particles and the foreign bodies entrained by the jet of compressed air are formed. Method also includes at least one of: accelerating the second stream at a distance from the first tobacco stream; and detecting, with a second foreign body detector, foreign bodies in the second stream based on at least one property and removing the detected foreign bodies with a second jet of compressed air.