Proximity flute detection
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United States of America Patent
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Oct 29, 1985
Grant Date -
N/A
app pub date -
Oct 24, 1983
filing date -
Oct 24, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Proximity type sensors detect the passage of the flutes of a single face web at the inlet and outlet of a bridge. Separate counts are maintained of the number of flutes detected at the bridge inlet and outlet based on the outputs of the sensors. Data representative of the number of flutes per unit length of one or more single face webs is stored in memory. The appropriate data is selectively retrieved from memory and multiplied by the difference between the flute counts at the bridge inlet and outlet to obtain a signal representative of actual length of web on the bridge.
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