Pulsed airknife control for a vacuum corrugated feed supply
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United States of America Patent
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Mar 7, 2006
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app pub date -
Oct 14, 2000
filing date -
Oct 14, 2000
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Abstract
A method of operating a vacuum corrugated belt feeder with positive air pressure-separator during a feed cycle wherein the vacuum and the positive pressure air are controlled by a vacuum valve and a positive air pressure valve respectively, wherein the paper is taken away by a belt which is activated when a feed clutch is energized, comprising actuating the vacuum at the start of the feed cycle and de-actuated the vacuum when the feed clutch is de-energized, and pulsing the positive air pressure separator by actuating and de-actuating the positive air pressure separator during the feed cycle.
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