Method and apparatus for scanning the exterior of rod-shaped art

Details Method and apparatus for scanning the exterior of rod-shaped art Method and apparatus for scanning the exterior of rod-shaped art

1984-06-04

1987-02-17

Wan, Gene

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

250239, G01N 2188

Patent

active

046441760

ABSTRACT:
The exterior of successive filter cigarettes, filter rod sections or other rod-shaped articles of the tobacco processing industry is monitored for the presence of various defects including absence or improper orientation of filter mouthpieces, improperly applied or outwardly projecting uniting bands, absence of roundness and/or others by directing a beam of radiation along successive articles while they move sideways in the flutes of a drum-shaped conveyor. The beams of radiation are influenced by defects and are thereupon monitored for the purposes of generating signals which are indicative of defects, if any. The beam of radiation extends all the way along the full length of each article and can also extend partially or around the entire circumference of each article.

REFERENCES:
patent: 4483615 (1984-11-01), Bieringer et al.

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