Coating apparatus
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United States of America Patent
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N/A
Issued Date -
Nov 27, 2008
app pub date -
Oct 11, 2007
filing date -
Apr 4, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A hollow rotating drum 3 is rotatably arranged in an outside casing 7. On the outer circumference surface of the drum 3, along the circumferential direction thereof, there are formed ventilation sections 6 that can ventilate the inside and outside of the drum 3 in the coating processing. The ventilation sections 6 are arranged over the entire circumference of the outer circumference surface of the drum 3. In the ventilation sections 6, hollow pipes 16 through which cold air circulate are arranged with a predetermined clearance provided therebetween. Communication regions that make the inside of the drum 3 communicate with the outside thereof are formed by the clearance provided between the pipes 16. During the coating processing, arbitrarily, cold air is supplied to the pipes 16 to cool the drum 3, and the temperature difference is brought about between the inner surface of the drum 3 and products to be processed, which can prevent the coating base material from adhering to the inner surface of the drum 3.
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