Patent ID: 7824456
Filing Date: 2010-11-02
Classification: A47L,Y10S

Abstract:
1. An improved extractor that is operable to remove waste cleaning liquid from a mixture of aspirated air and waste cleaning liquid that is delivered to said extractor by a vacuum hose; wherein said extractor comprises: a vacuum chamber; a vacuum pump that is operable to apply a vacuum to said vacuum chamber; and a diffuser mounted within said vacuum chamber; wherein said diffuser is in fluid communication with said vacuum hose; wherein said diffuser comprises an internal diffuser cavity and a diffuser aperture that is in fluid communication with said internal diffuser cavity; and wherein, during operation of said extractor, said mixture is sucked into said diffuser cavity by said vacuum pump; wherein said diffuser is operable to separate at least some of said waste cleaning liquid from said mixture; wherein said separated waste cleaning liquid and said aspirated air flow out of said diffuser cavity through said diffuser aperture and into said vacuum chamber; wherein all of said diffuser is not submerged in said waste cleaning liquid in said vacuum chamber; and wherein said vacuum pump is operable to suck said aspirated air out of said vacuum chamber.