Optics: measuring and testing – By configuration comparison – With photosensitive film or plate
Patent
1995-03-08
1996-12-03
McGraw, Vincent P.
Optics: measuring and testing
By configuration comparison
With photosensitive film or plate
356428, G01N 2190, G01B 1106
Patent
active
055813550
ABSTRACT:
A method and finish meter for detecting the presence of and measuring the thickness of a metal oxide coating at multiple locations on a sealing surface of a rim of a glass container. The finish meter includes a sensing head for directing a beam of light from a light source against a container and detecting reflected light and a means for positioning the light against the sealing surface of the glass container such that the longitudinal central axis of the sensing head is substantially perpendicular to the sealing surface of the rim of the glass container.
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Glass Testing Methods from American Glass Research, NO 7-71-B, two pages.
Dembicki Michael T.
Myers Ronald T.
McGraw Vincent P.
Owens-Brockway Glass Container Inc.
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