Cyclone and dust filter vacuum cleaner
First Claim
1. A cyclone vacuum cleaner, comprising:
- a vacuum cleaner housing having an inlet for dirty air and an outlet for clean air, said housing having first and second chambers, said first chamber being a coarse dust removal chamber and said second chamber being a fine dust removal chamber;
a rotary cylinder disposed in an upper part of the coarse dust removal chamber;
a filtering tube disposed within said rotary cylinder, the inlet of said container being disposed above the coarse dust chamber, and at least a portion of the inlet being disposed between said rotary cylinder and said filtering tube;
a rotary cone having a partially open bottom disposed within the fine dust removal chamber, said partially open bottom being disposed above a bottom of said container by a predetermined distance, said outlet of said housing being disposed above said rotary cone; and
a guide duct extending from an upper part of said filtering tube to an upper part of said rotary cone, said guide duct being partially disposed within said rotary cone.
12 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner includes a container having an inlet for dirty air, an outlet for clean air, a coarse dust chamber and a fine dust chamber. The coarse dust chamber includes a filtering tube disposed within a rotary cylinder. The fine dust chamber includes a rotary cone. Air containing dust is drawn into the coarse dust chamber and supplied into the gap between the cylinder'"'"'s inner surface and the filtering tube'"'"'s outer surface. The air is rotated within the coarse dust chamber to force coarse dust to travel away from the chamber'"'"'s center and air containing only fine dust travels through the filtering tube. This air is supplied into the rotary cone within the fine dust chamber and is rotated to force fine dust away from the chamber'"'"'s center. Dust free air, which is travelling in the center of the rotary cone, is supplied out of the filter as clean air.
119 Citations
34 Claims
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1. A cyclone vacuum cleaner, comprising:
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a vacuum cleaner housing having an inlet for dirty air and an outlet for clean air, said housing having first and second chambers, said first chamber being a coarse dust removal chamber and said second chamber being a fine dust removal chamber;
a rotary cylinder disposed in an upper part of the coarse dust removal chamber;
a filtering tube disposed within said rotary cylinder, the inlet of said container being disposed above the coarse dust chamber, and at least a portion of the inlet being disposed between said rotary cylinder and said filtering tube;
a rotary cone having a partially open bottom disposed within the fine dust removal chamber, said partially open bottom being disposed above a bottom of said container by a predetermined distance, said outlet of said housing being disposed above said rotary cone; and
a guide duct extending from an upper part of said filtering tube to an upper part of said rotary cone, said guide duct being partially disposed within said rotary cone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A method of filtering dust utilizing two dust removal chambers, comprising the steps of:
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drawing air containing fine and coarse dust into a first dust chamber having a cylinder and a filtering tube disposed within the cylinder, the drawn air containing fine and coarse dust being supplied into a gap disposed between an inner surface of the cylinder and an outer surface of the filtering tube;
rotating the drawn air containing fine and coarse dust in the first dust chamber to cause the coarse dust to travel outwardly away from the filtering tube and to cause the drawn air and at least some of the fine dust to travel inwardly towards and into the filtering tube;
supplying the air and fine dust within the filtering tube to a second dust chamber having a funnel-shaped cone, the air and fine dust being supplied within the funnel-shaped cone;
rotating the air and fine dust within the funnel-shaped cone to cause the fine dust to travel outwardly towards an inner surface of the funnel-shaped cone and to cause the air to travel at a center of the funnel-shaped cone;
supplying the air travelling at the center of the funnel-shaped cone outside the second dust chamber as filtered air.
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18. A cyclone dust filter for a vacuum cleaner, comprising:
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a funnel-shaped cone having a smaller end and a larger end, the smaller end having an opening and the larger end having an inlet for receiving air tangentially along the inside of the cone;
a cylindrical boss disposed at the center of the opening of the smaller end of the cone and held in place by at least one guide rib coupled between the wall of the cone and the cylindrical boss, the cylindrical boss sized relative to the opening so that a gap exists around the cylindrical boss to allow dust travelling along an inner surface of the cone to travel past the cylindrical boss. - View Dependent Claims (19, 20, 21, 22, 23, 24)
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25. A method of filtering dust, comprising the steps of:
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supplying air having dust tangentially along an inside of a funnel-shaped cone;
rotating the air and dust within the cone to cause the dust to travel outwardly towards an inner surface of the cone and to cause air substantially without dust to travel along a center axis of the cone;
deflecting the air travelling along the center axis of the cone by a deflecting structure in the form of a cylindrical boss disposed at a center of one end of the cone;
supplying the deflected air outside the cone as filtered air;
allowing dust travelling along the inner surface of the cone to pass through a gap disposed between the deflecting structure and the surface of the cone; and
preventing by the cylindrical boss re-entry of dust into the cone that previously passed out of the cone through the gap.
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26. A vacuum cleaner, comprising:
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a vacuum cleaner housing having an inlet for dirty air and an outlet for clean air, said housing having first and second chambers, said first chamber being a coarse dust removal chamber and said second chamber being a fine dust removal chamber;
a rotary cylinder disposed in an upper part of the coarse dust removal chamber;
a filtering tube having a cylindrical sidewall disposed within said rotary cylinder, the inlet of said container being disposed above the coarse dust chamber, and at least a portion of the inlet being disposed between said rotary cylinder and said filtering tube;
a spiral guide blade disposed around an upper part of the filtering tube and adapted to cause air disposed within the rotary cylinder to rotate; and
a guide duct extending from an upper part of said filtering tube to an upper part of said fine dust removal chamber. - View Dependent Claims (27, 28, 29, 30, 31, 32, 33, 34)
a vacuum cleaner housing having an inlet for dirty air and an outlet for clean air, said housing having first and second chambers, said first chamber being a coarse dust removal chamber and said second chamber being a fine dust removal chamber;
a rotary cylinder disposed in an upper part of the coarse dust removal chamber;
a filtering tube having a cylindrical sidewall disposed within said rotary cylinder, the inlet of said container being disposed above the coarse dust chamber, and at least a portion of the inlet being disposed between said rotary cylinder and said filtering tube;
the length of said filtering tube is being substantially the same as the length of said rotary cylinder, said filtering tube has having a sealed bottom and holes in the cylindrical sidewall and further including a bellmouthing disposed around the sealed bottom of the filtering tube to prevent dust from rising into the rotary cylinder from the bottom portion of the coarse dust chamber; and
a guide duct extending from an upper part of said filtering tube to an upper part of said fine dust removal chamber.
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34. The vacuum cleaner of claim 33, further comprising a discharge air tube extending from said outlet into said fine dust removing chamber.
Specification