Method and device for position controlling cigarette filter pape

Details Method and device for position controlling cigarette filter pape Method and device for position controlling cigarette filter pape

1994-02-14

1996-04-09

Bahr, Jennifer

Tobacco

Cigar or cigarette making

131905, 131908, 209536, A24C 560

Patent

active

055052150

ABSTRACT:
A cigarette, with a cigarette paper and a filter paper of different colors and separated by a boundary line with a given nominal position, is fed past a pair of optical sensors located on either side of the nominal position of the boundary line. The optical sensors generate a pair of electric signals each related to the color of the respective monitored portion of the cigarette, and which are compared with each other; and, in the event the difference between the signals is below a given threshold value, an error signal is generated for rejecting the cigarette.

REFERENCES:
patent: 5392359 (1995-02-01), Futamura et al.

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