Floor cleaning apparatus with filter cleaning system

A - Human Necessities – 47 – L

Patent

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Details

A47L 9/20 (2006.01) A47L 5/22 (2006.01)

Patent

CA 2551971

A floor cleaning apparatus includes a dirt collection vessel and a suction generator carried on the housing. The dirt collection vessel includes a dirty air inlet, a dirt collection chamber and a clean air outlet. A filter is received in the dirt collection vessel. The filter includes multiple sections. Each section provides a discrete airflow pathway. In addition, the floor cleaning apparatus includes a flow control valve assembly including a clean air inlet. The flow control valve assembly is selectively displaceable between two positions. In the first position dirty air is serially moved by the suction generator through the dirty air inlet, the dirt collection chamber, the filter and the clean air outlet so that dirt is collected in the dirt collection chamber. In the second position clean air is moved by the suction generator through the clean air inlet, a selected one of the sections of the filter, back through the other sections of the filter and then through the clean air outlet. In this way dirt is cleaned from the selected filter of the filter.

Un appareil de nettoyage des planchers comprend un contenant de retenue de la poussière et un aspirateur abrité dans le bâti. Le contenant de retenue de la poussière comprend un orifice d'entrée d'air sale, une chambre de retenue de la poussière et un orifice de sortie d'air propre. Le contenant de retenue de la poussière contient un filtre avec des sections multiples. Chaque section comporte sa propre voie de circulation d'air. De plus, l'appareil de nettoyage des planchers comprend un régulateur de débit qui comporte une entrée d'air propre. Ce régulateur peut être placé à deux positions. € la première position, l'aspirateur fait passer l'air poussiéreux successivement par l'entrée d'air sale, la chambre de retenue de la poussière, le filtre et la sortie d'air propre, de telle sorte que la poussière est recueillie dans la chambre de retenue. € la seconde position, l'aspirateur fait passer l'air propre par l'entrée d'air propre, une section sélectionnée entre toutes les sections du filtre à air, et retraverser les autres sections du filtre, puis la sortie d'air propre. Ainsi, la poussière est éliminée de la section sélectionnée du filtre.

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