Apparatus for measuring the density of accumulations of fibrous material in multiple rod making machines of the tobacco processing industry

US5625187A · kind A · utility

Assignee

• HAUNI MASCHINENBAU GMBH · DE

Inventors

• Wolfgang Siems · Hamburg, DE
• Erwin Schmalfeld · Reinbek, DE
• Elke Kohler · Hamburg, DE

Key dates

• Filing date: Dec 29, 1995
• Grant date: Apr 29, 1997
• Expiry date: Dec 29, 2015

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A24C5/3412
• WIPO field: Other consumer goods
• WIPO sector: Other fields

Abstract

Two parallel cigarette rods are guided in a twin cigarette rod making machine between two stationary ionization chambers of a density measuring apparatus. Two radiation sources are mounted on a carrier between the two rods for movement with the carrier between a first position in which the radiation issuing from the sources penetrates through the adjacent rods and into the respective ionization chambers, and a second position in which the radiation enters the respective chambers by way of passages in the guides for the respective rods.