Pulsed airknife control for a vacuum corrugated feed supply
AssigneeEastman Kodak Company
InventorsMichael T. Dobbertin, Henry P. Mitchell, Jr.
Life of this patent
Estimating the term…
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.
Claims5
In a method of operating a vacuum corrugated belt feeder with positive air pressure separator during a feed cycle wherein said vacuum and said 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, wherein the vacuum is actuated at the start of the feed cycle and de-actuated when the feed clutch is de-energized, the improvement comprising:
- pulsing the positive air pressure separator by actuating and de-actuating said positive air pressure separator during the feed cycle.
A method of operating a vacuum corrugated belt feeder with positive air pressure separator during a feed cycle wherein said vacuum and said 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:
- opening said vacuum valve and said positive pressure air valve;
- closing said positive pressure air valve;
- energizing the feed clutch on the belt feeder;
- de-energizing the feed clutch;
- and,
- closing said vacuum valve.
Dependencies are inferred from the claim text.