Method and device for monitoring blanks or revenue seals for cig

Details Method and device for monitoring blanks or revenue seals for cig Method and device for monitoring blanks or revenue seals for cig

1997-02-14

1999-03-02

Allen, Stephone

Radiant energy

Photocells; circuits and apparatus

With circuit for evaluating a web, strand, strip, or sheet

250221, 250223R, 209536, 53 53, 356376, G01N 2100, B07C 500

Patent

active

058775064

ABSTRACT:
With rapidly-operating packaging machines for cigarette packages, monitoring of blanks is becoming increasingly necessary, such a system supervising the feed of correct blanks in the correct relative position. The same applies to monitoring systems for revenue seals.
In the method according to the invention for monitoring blanks or revenue seals with the aid of a sensor, contours of an edge and of a surface of the blank or of the revenue seal are scanned. Pulses obtained thus are compared with a reference value by an evaluating unit.

REFERENCES:
patent: 3035380 (1962-05-01), Leavens
patent: 3939984 (1976-02-01), Butner
patent: 4053056 (1977-10-01), Day
patent: 4972494 (1990-11-01), White et al.
patent: 5383322 (1995-01-01), Collins, Jr. et al.
patent: 5664026 (1997-09-01), Neri et al.

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