Inequality confined combination weigher
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United States of America Patent
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Aug 20, 1991
Grant Date -
N/A
app pub date -
Jun 21, 1990
filing date -
Aug 15, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
One kind of combination weigher, used for selecting a predetermined number of articles having substantially same weights from a group of articles having substantial variance or inequality in their weights, which is provided with a plurality of independent weigh units and adapted to weigh an article by each unit at the same time, process the resultant weight signals by a computer to select a combination of a predetermined number of weight signals whose variance or inequality satisfies a predetermined condition from various combinations of the weight signals, and indicate those weight units attributable to the selected combination by pilot lamps, for example.
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