Self-evacuating vacuum cleaner

Selbstentleerender Staubsauger

Aspirateur a vidage automatique


A vacuum cleaner comprising: a tank (32) for receiving vacuumed material, a vacuum assembly (34) including an air impeller (74) for creating low pressure in the tank (32) to draw material into the tank (32) through an inlet (40) of the vacuum cleaner, a pump assembly (120) disposed inside the tank (32) and including at least a housing (124,126) in which is located an impeller (104) of a pump (372) for expelling liquid material contained in the tank (32) through an outlet (56) of the vacuum cleaner, at least one motor (93) for driving the air impeller (74) and the pump impeller (104), characterized in that the housing (124,126) is positioned proximate the air impeller (74) and the pump assembly (120) further comprises a pump inlet tube (310,318) extending from the housing (124,126) to a lower portion of the tank (32).




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Patent Citations (4)

    Publication numberPublication dateAssigneeTitle
    US-1661480-AMarch 06, 1928Walter L KeeferSurface-cleaning machine
    US-4080104-AMarch 21, 1978Brown Jr Edward CWet-dry vacuum apparatus with pump means for discharging liquid therefrom
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NO-Patent Citations (0)


Cited By (0)

    Publication numberPublication dateAssigneeTitle