Deflagration suppression screen for portable cyclonic dust collector/vacuum cleaner
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United States of America Patent
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Jul 26, 2016
Grant Date -
Aug 14, 2014
app pub date -
Feb 12, 2013
filing date -
Oct 28, 2009
priority date (Note) -
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Abstract
A cyclonic portable vacuum cleaner/dust collector has a cyclonic chamber and a filter chamber. The filter chamber contains a filter cartridge with a hollow core positioned over the discharge opening of a motor plate that closes the filter chamber. A vacuum blower is mounted on the motor plate, with an intake tube at the discharge opening of the motor plate. An anti-deflagration screen mounted upon the discharge opening of the cover plate of the filter chamber. The anti-deflagration screen is in the form of a metal mesh creating a multiplicity of small passages to permit exhaust air flow from the filter chamber but blocking any flame front. The screen may be hemispherically domed.
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