Foreign matter detecting device

Details Foreign matter detecting device Foreign matter detecting device

1980-11-12

1983-03-15

Britton, Howard

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

250223B, 250572, 209939, 356237, 356240, 356430, H04N 718

Patent

active

043769519

ABSTRACT:
In general, used beer, alcoholic drink, soft drink or medical bottles are collected to be used again. Such used returnable bottles often have foreign matters or contaminants such as dust and leavings or cracks, and they must be removed from the bottling line before or after the bottle cleaning process. This invention positively satisfies such a requirement. The foreign matter detecting device comprises: a photoelectric conversion device having a number of light receiving elements; and a video signal processing device for successively subjecting to comparison and discrimination the detection signals of variable two adjacent points which are detected by the photoelectric conversion device, to determine whether or not the bottle has a foreign matter.

REFERENCES:
patent: Re28984 (1976-09-01), Drinkuth
patent: 2636602 (1953-04-01), Stoate
patent: 3746784 (1973-07-01), Van Oosterhout
patent: 3777169 (1973-12-01), Walter
patent: 3811567 (1974-05-01), Tomita
patent: 3877821 (1975-04-01), Price
patent: 3932042 (1976-01-01), Faani
patent: 3992571 (1976-11-01), Garlick
patent: 4002823 (1977-01-01), Van Oosterhout
patent: 4136930 (1979-01-01), Gomm
patent: 4280624 (1981-07-01), Ford

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