Methods and apparatus for controlling impurity levels in an enclosed printing press environment
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United States of America Patent
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Aug 20, 2013
Grant Date -
Nov 15, 2007
app pub date -
May 12, 2006
filing date -
Jun 16, 2003
priority date (Note) -
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Abstract
Methods and apparatus for controlling impurity levels in an enclosed printing press environment are disclosed. A disclosed system controls impurity levels by using variable speed fans to control the intake of air into the enclosed environment and the exhausting of air from the enclosed environment. The exhaust fan is used to control the impurity levels within the enclosed environment. Adjustments to the speed of the exhaust fan are based on sensors which measure impurity levels in the enclosed environment. The intake fan is used to maintain a constant static pressure level within the enclosed environment. Adjustments to the intake fan speed are based on static pressure sensors within the enclosed environment.
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