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US 6,578,224 B1Granted
Process of cleaning carpets and the like
AssigneeThe Procter & Gamble Company
InventorsJohn Russell Lawson, Marcel Vanderbroek, Jelle Dankert Vuijk
Life of this patent
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Abstract
The present invention is directed to a process of cleaning carpets and other large fabric coverings with a product dispensed from a device. The device comprises a reservoir for the product, means for dispensing the product, a spray arm and at least one dispensing opening. The reservoir is a removable non-refillable cartridge. Preferably, the reservoir comprises at least one compartment.
Claims11
A process of treating carpets and other large fabric coverings comprising the steps of:
- providing a hand-held device having a reservoir filled with a liquid product and means for dispensing said liquid product, wherein said dispensing means comprises an electrically driven pump having an electrical power source housed in said device, a spray arm and at least one dispensing opening wherein said reservoir is removable and wherein said reservoir is releasably connected to said pump through a liquid-tight vent and fluid transfer fitment, said fitment comprising:
- (i) a liquid transfer check valve for allowing passage of liquid from said reservoir to said pump;
- and
- (ii) a venting check valve for allowing air to displace the liquid when said liquid exits said reservoir, both valves having an inherent sealing pressure created by the static pressure of the liquid within the reservoir;
- and
- dispensing said liquid product onto said carpet or said large fabric coverings.
3 more elements
Dependencies are inferred from the claim text.