VACUUM CLEANER WITH TWO STAGE FILTRATION
First Claim
Patent Images
1. A combination wet-dry vacuum cleaner comprising:
- a recovery tank adapted for wet and dry cleaning is connected to a suction nozzle, the recovery tank having an air-liquid separator for separating air from liquid in an air-liquid mixture from the suction nozzle;
a cyclone separator having an inlet that it connected to the recovery tank and an outlet;
a suction source that is connected to the suction nozzle through the recovery tank and the cyclone separator, thereby creating a working air path, to draw dry, dirt-laden air and liquid-laden air from the suction nozzle and to the recovery tank wherein dirt is separated from the dry, dirt-laden air and liquid is separated from the liquid-laden air, and the thus separated air is drawn through the cyclone separator.
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Accused Products
Abstract
A canister vacuum cleaner comprises a base, a recovery tank, and a clean solution tank. The vacuum cleaner can be used for dry vacuuming, wet vacuuming, and can distribute cleaning solution to a floor surface and has means for a fluid distribution system and a recovery system. The clean solution tank can be filled with a cleaning solution for distribution to a floor surface and the recovery tank is used for collecting dry or liquid matter recovered from vacuuming.
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Citations
15 Claims
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1. A combination wet-dry vacuum cleaner comprising:
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a recovery tank adapted for wet and dry cleaning is connected to a suction nozzle, the recovery tank having an air-liquid separator for separating air from liquid in an air-liquid mixture from the suction nozzle;
a cyclone separator having an inlet that it connected to the recovery tank and an outlet;
a suction source that is connected to the suction nozzle through the recovery tank and the cyclone separator, thereby creating a working air path, to draw dry, dirt-laden air and liquid-laden air from the suction nozzle and to the recovery tank wherein dirt is separated from the dry, dirt-laden air and liquid is separated from the liquid-laden air, and the thus separated air is drawn through the cyclone separator. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A combination wet-dry vacuum cleaner comprising:
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a recovery tank that is connected to a suction nozzle, the recovery tank having a first air-liquid separator for separating air from liquid from the suction nozzle when an air-liquid mixture enters the recovery tank;
a second separator that is connected to an outlet in the recovery tank to remove liquid from air before it passes from the recovery tank;
a suction source that is connected to the suction nozzle through the recovery tank and the second separator to draw dry dirt-laden air and liquid-laden air from the suction nozzle through the recovery tank and the cyclone separator;
wherein the recovery tank is adapted for both wet and dry cleaning, the dry dirt-laden air is filtered with a water bath for dry cleaning and the liquid-laden air is separated in the air-liquid separator in the recovery tank and the second separator for wet cleaning; and
any remaining liquid in the air is recovered before entering the suction source. - View Dependent Claims (9, 10)
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11. A combination wet-dry vacuum cleaner comprising:
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a recovery tank that is connected to a suction nozzle, the recovery tank having an air-liquid separator for separating air from liquid from the suction nozzle;
a diverter valve between the suction nozzle and the recovery tank for directing the liquid-laden air to the air-liquid separator and alternately for directing the dry dirt-laden air into a water bath in the recovery tank;
a suction source that is connected to the suction nozzle through the recovery tank to draw dry dirt-laden air and liquid-laden air from the suction nozzle through the recovery tank and the cyclone separator;
wherein the recovery tank is adapted for both wet and dry cleaning;
wherein the dry dirt-laden air is filtered with a water bath for dry cleaning and the liquid-laden air is separated in the air-liquid separator in the recovery tank.
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12. A vacuum cleaner comprising:
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a nozzle housing having a suction nozzle opening, a brush rotatably mounted to the housing and positioned in the suction opening; and
at least a pair of wheels mounted in the housing;
a source of suction connected to the suction nozzle opening; and
a dust collector in communication with the source of suction and the suction nozzle opening to remove dust from the air drawn from the suction nozzle;
wherein the wheels are connected to the brush to drive the brush about an axis of rotation when the wheels are rotated.
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- 13. A canister cleaner having a housing and a glide mounted to an under surface thereof, the glide comprising at least a partial spherical surface that is adapted to glide over a carpet surface to distribute the load over the carpet for easy movement.
Specification