Patent ID: 7436509
Filing Date: 2008-10-14
Classification: B07C,G01N

Abstract:
1. A machine for inspecting for the presence of a wire edge protruding upwardly from the inner edge of an annular step defined in the interior corner of the sealing surface hole of a glass bottle comprising means for vertically supporting the glass bottle at an inspection station, a first light source for directing light vertically upwardly through the bottom of the glass bottle, camera means, located vertically above the sealing surface, for imaging the sealing surface of the glass bottle, said camera means including a field lens located above the sealing surface, a beam splitter located between said field lens and the sealing surface, and a second light source directing light horizontally towards said beam splitter for redirecting the horizontally directed light vertically downwardly toward the sealing surface whereby the hole appears bright, the sealing surface appears gray, the annular step appears black and a wire edge appears gray.