A - Human Necessities – 47 – L
Patent
A - Human Necessities
47
L
15/54, 15/65, 15
A47L 11/03 (2006.01) A47L 7/00 (2006.01)
Patent
CA 1334473
A machine for cleaning surfaces such as carpets, floors, and the like, has a frame (30) on which is mounted an upper housing (56) containing an air pump (62). An assembly of a fresh liquid container (48) stacked on a waste liquid container (50) is removably mounted on the frame with the aid of a cam latch (54). The air pump communicates with a housing (160) which provides pressurized air to outlets (158, 166, and 168) and suction to a suction nozzle (46) through a conduit (173) which carries waste liquid and air picked up from the carpet to a separator (58) in the housing (56). A cleaning fluid container (64) is removably mounted in a docking port (68) in the housing (56) and aligned and locked in communication with couplings (254) in the docking port (68) by a rotatable collar (66) having a camming recess (220). The clean liquid container (48) and the cleaning fluid container are pressurized by connections thereto from the air pump outlets (166 and 168) to provide for the delivery of fresh liquid or fresh liquid and cleaning solution mixtures of selected concentration to a spray nozzle (42) to which pressurized air is also applied from one of the pressurized air outlets (164) via a conduit (158). The suction nozzle can have passage (274, 276) for facilitating flow of air and waste water and making such flow visible. The separator (58) has a housing which includes a conical shroud (172) which facilitates separation of waste liquid from the air picked up from the surface being cleaned. Air exits from the separator interiorly of the shroud and then through the top of the housing. The liquid exits downwardly. The assembly of fresh water and waste water tanks (48, 50) has a conduit (181) leading from the bottom of the separator housing (160) through the fresh liquid tank into the waste liquid tank.
616153
Borden Ladner Gervais Llp
Oreck Holdings Llc
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