G - Physics – 01 – B
Patent
G - Physics
01
B
33/179
G01B 7/28 (2006.01)
Patent
CA 1269527
ABSTRACT An inspection apparatus includes a checking fixture having an article supporting surface having a contour representative of the desired/ideal peripheral marginal edge contour of a contoured article to be inspected, such as a bent glass sheet, e.g. an automotive lite. The article is supported by the article supporting surface of the fixture. The apparatus further includes position-sensing facilities, e.g. a linear potentiometer, and facilities, e.g. a robot, for moving the potentiometer about the periphery of the article to be inspected, to generate a plurality of signals indicative of the gap between a plurality of predetermined points around the marginal edge periphery of the article supporting surface and a corresponding plurality of points around the marginal edge periphery of the article. The apparatus further preferably includes a computer or the like for processing the generated signals to provide information about the contour characteristics of the article, e.g. bend, sag, kink, or the like. Also disclosed herein is a method for using the apparatus of this invention.
525320
Borden Ladner Gervais Llp
Koontz Harry S.
Ppg Industries Inc.
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