Radiant energy – Photocells; circuits and apparatus – With circuit for evaluating a web – strand – strip – or sheet
Reexamination Certificate
2006-06-13
2006-06-13
Allen, Stephone B. (Department: 2878)
Radiant energy
Photocells; circuits and apparatus
With circuit for evaluating a web, strand, strip, or sheet
C250S559450, C250S22300B, C356S239400, C356S630000
Reexamination Certificate
active
07060999
ABSTRACT:
An apparatus for inspecting a container having a central axis and a sidewall with circumferentially extending external ribs. The apparatus includes a light source for directing a line-shaped light beam onto an external surface of the container, a light sensor disposed to receive reflected portions of the line-shaped beam, and an information processor coupled to the light sensor to determine a geometric characteristic of the sidewall as a function of the reflected light energy. The line-shaped light beam preferably has a long dimension parallel to the container axis, and sufficient length to illuminate at least one rib peak and at least one valley between the rib peaks. The sensor may be a linear array sensor that is particularly useful for measuring out-of-round, or an area array sensor for measuring out-of-round and sidewall thickness.
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Allen Stephone B.
Monbleau Davienne
Owens-Brockway Glass Container Inc.
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