METHOD AND SYSTEM FOR INSPECTING SMALL MANUFACTURED OBJECTS AT A PLURALITY OF INSPECTION STATIONS AND SORTING THE INSPECTED OBJECTS
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United States of America Patent
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Issued Date -
Nov 22, 2012
app pub date -
May 17, 2011
filing date -
May 17, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A method and system for inspecting small, manufactured objects at a plurality of inspection stations and sorting the inspected objects are provided. Coins, coin blanks, tablets or pills are fed from a centrifugal feeder and conveyed or transferred by a transfer subsystem. The objects are spaced at equal intervals during conveyance to provide a “metering effect” which allows the proper spacing between objects for inspection and rejection of defects. The inspection stations may include imaging assemblies in the form of conventional cameras and/or three-dimensional sensors such as triangulation or confocal sensors. The inspection stations may include a circumference vision station and/or an eddy current station. Circumferential defects (like in edge lettering) on coins or rim defects on pills can be detected at the circumference vision station by another imaging assembly. Metal chips, foreign metallic debris, etc. in or on the tablets/pills can be detected at the eddy current station.
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Family
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Cited Art Landscape
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