Liquid extraction cleaning device and method
First Claim
Patent Images
1. A liquid extraction cleaning device comprising:
- a main unit, the main unit comprising a vacuum pump;
a liquid pump;
a flexible hose surrounding a hose passageway, the flexible hose being operatively connected to the vacuum pump in a manner such that the vacuum pump is capable of drawing fluid through the hose passageway;
a hand tool, the hand tool comprising a vacuum inlet port, an agitator, an electric motor, a spray nozzle, and a grip portion, the hand tool being connected to the main unit by the flexible hose such that the hand tool is movable relative to the main unit, the vacuum inlet port being operatively connected to the vacuum pump via the hose passageway in a manner such that the vacuum pump is capable of drawing fluid through the vacuum inlet port and into the hose passageway, the spray nozzle being operatively connected to the liquid pump in a manner such that the liquid pump is capable of forcing liquid out of the spray nozzle, the electric motor being operatively connected to the agitator in a manner such that operation of the electric motor causes the agitator to move relative to the grip portion; and
an electrical cable extending within and along the hose passageway, the electrical cable being operatively connected to the electrical motor of the hand tool and to the main unit in a manner such that the electrical cable can supply electrical power to the electric motor from the main unit.
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Abstract
A liquid extraction cleaning device comprises a main unit, a liquid pump, a flexible hose, and a hand tool. The main unit comprises a vacuum pump. The hand tool comprises a vacuum inlet port, an agitator, a spray nozzle, and a grip portion. The vacuum inlet port of the hand tool is operatively connected to the vacuum pump via the hose passageway in a manner such that the vacuum pump is capable of drawing fluid through the vacuum inlet port and into the hose passageway. The spray nozzle is operatively connected to the liquid pump in a manner such that the liquid pump is capable of forcing liquid out of the spray nozzle.
36 Citations
12 Claims
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1. A liquid extraction cleaning device comprising:
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a main unit, the main unit comprising a vacuum pump; a liquid pump; a flexible hose surrounding a hose passageway, the flexible hose being operatively connected to the vacuum pump in a manner such that the vacuum pump is capable of drawing fluid through the hose passageway; a hand tool, the hand tool comprising a vacuum inlet port, an agitator, an electric motor, a spray nozzle, and a grip portion, the hand tool being connected to the main unit by the flexible hose such that the hand tool is movable relative to the main unit, the vacuum inlet port being operatively connected to the vacuum pump via the hose passageway in a manner such that the vacuum pump is capable of drawing fluid through the vacuum inlet port and into the hose passageway, the spray nozzle being operatively connected to the liquid pump in a manner such that the liquid pump is capable of forcing liquid out of the spray nozzle, the electric motor being operatively connected to the agitator in a manner such that operation of the electric motor causes the agitator to move relative to the grip portion; and an electrical cable extending within and along the hose passageway, the electrical cable being operatively connected to the electrical motor of the hand tool and to the main unit in a manner such that the electrical cable can supply electrical power to the electric motor from the main unit. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification