System comprising a vacuum cleaner and a dust bag
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United States of America Patent
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Jul 16, 2013
Grant Date -
Jun 14, 2012
app pub date -
Dec 8, 2011
filing date -
Dec 9, 2010
priority date (Note) -
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Abstract
A system includes a vacuum cleaner with a dust chamber having ribs and a dust bag including a fleece disposed on a supporting structure. The fleece includes a plurality of fleece corrugations, with a distance between the fleece corrugations being matched to a distance between the dust chamber ribs. The resultant matching of the fleece corrugation spacing and the spacing of the dust chamber rib prevents partial or large-area contact of portions of the dust bag with an inner surface of the dust chamber.
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