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US Patent 7377953 Cyclone dust collecting apparatus having contaminants counterflow prevention member

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US Patent 12121198 Surface cleaning apparatus
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US Patent 12082759 Surface cleaning apparatus
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US Patent 12070176 Surface cleaning apparatus
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US Patent 11992848 Surface cleaning apparatus
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US Patent 11992167 Surface cleaning apparatus
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US Patent 11986145 Surface cleaning apparatus
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US Patent 11938491 Surface cleaning apparatus
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US Patent 11930987 Surface cleaning apparatus
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US Patent 11918168 Surface cleaning apparatus
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US Patent 11910983 Surface cleaning apparatus
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US Patent 11903546 Surface cleaning apparatus
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US Patent 11903547 Surface cleaning apparatus
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US Patent 11857140 Cyclone such as for use in a surface cleaning apparatus
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US Patent 11779174 Surface cleaning apparatus
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US Patent 11771280 Surface cleaning apparatus with removable air treatment member assembly
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US Patent 11766156 Surface cleaning apparatus with removable air treatment member assembly
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US Patent 11766157 Dirt separator for a vacuum cleaner
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Jang-keun Oh0
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Patent abstract

A cyclone dust collecting apparatus comprises a deformable contaminants counterflow prevention member mounted to within 10 to 12 mm of the inner surface of the cyclone dust collecting apparatus. The deformable contaminants counterflow prevention member is soft enough to be elastically transformed to allow large contaminants to be drawn past it and drop into a dust collecting apparatus yet resilient enough so that it returns to its original shape after a large contaminant is passed.

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