Dual mode carpet cleaning machine, solution, system and...

A - Human Necessities – 47 – L

Patent

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A47L 11/34 (2006.01) C11D 1/12 (2006.01) C11D 1/14 (2006.01) C11D 3/00 (2006.01) C11D 3/37 (2006.01) C11D 11/00 (2006.01)

Patent

CA 2452755

A dual mode carpet cleaning machine capable of being used in both a traditional deep cleaning mode and a fast drying surface cleaning mode. A selection mechanism provides selective communication with different sets of application jets. One set of application jets delivers a first cleaning solution that penetrates deeply into a carpet. After agitation with a scrub brush the device removes the cleaning solution and unwanted soil through a vacuum nozzle. The other set of jets delivers a lower flow rate of a second cleaning solution that does not penetrate deeply into the carpet. In addition, a novel cleaning solution is disclosed for use with the machine in differing concentrations, depending on the desired application. The carpet cleaning solutions dry more quickly when applied to carpet than previous solutions; the combined performance of the system displays similar cleaning efficiencies to previous carpet cleaning machines but obtains significantly reduced drying times.

L'invention porte sur un nettoyeuse de tapis à double action pouvant s'utiliser soit en mode traditionnel de nettoyage profond, soit en mode superficiel rapide, un mécanisme de sélection permettant de passer de l'un à l'autre. Un ensemble de jets d'application distribue une première solution de nettoyage pénétrant profondément dans le tapis puis après agitation à l'aide d'une brosse le dispositif élimine la solution et les saletés à l'aide d'une buse aspirante. Un autre ensemble de jets distribue à un débit plus faible une deuxième solution de nettoyage qui ne pénètre pas profondément dans le tapis. L'invention porte également sur une nouvelle solution de nettoyage utilisable par la machine à différentes concentrations en fonction de l'application envisagée qui sèche plus rapidement que les solutions précédentes. La combinaison des éléments du système donne des résultats équivalents à ceux des machines antérieures, mais les temps de séchage sont notablement réduits.

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