Bottle inspection apparatus

Classifying – separating – and assorting solids – Sorting special items – and certain methods and apparatus for... – Sorting bottles – ampoules – jars – drinking vessels – or like...

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Details

209585, 209934, 209939, 250223B, 356240, B07C 5342

Patent

active

042806240

ABSTRACT:
The invention relates to an apparatus for inspecting the side walls of transparent bottles for the detection of dirt or foreign bodies therein which eliminates the necessity of rotating the bottle during inspection. The inspection is effected by projecting a plurality of images of the side walls of a bottle, as viewed from at least two different directions in plan, on to at least one integrated circuit device comprising an array of photodiodes arranged in a plurality of rows in combination with means to interrogate each diode in turn, along each row in turn, to provide a video signal comprising a sequence of electrical signals corresponding to the light energy each diode has received. The video signal is differentiated and unwanted signals outside of the limits of the side walls to be inspected are gated out, whereby to generate a video output pulse representative of dirt in the bottle.

REFERENCES:
patent: 3746784 (1973-07-01), Van Oosterhout
patent: 3894806 (1975-07-01), Remy et al.
patent: 3908815 (1975-09-01), Carter
patent: 3923158 (1975-12-01), Fornaa
patent: 3932042 (1976-01-01), Faani et al.
patent: 4002823 (1977-01-01), Van Oosterhout
patent: 4025201 (1977-05-01), Deane

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