Cyclonic vacuum cleaner with improved collection chamber
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a cyclone separator having at least one separator chamber for separating contaminants from a dirt-containing airstream, and further comprising an inlet and an outlet in fluid communication with the separator chamber;
a collection chamber associated with the cyclone separator for receiving contaminants separated in the separator chamber and having a cylindrical sidewall and a bottom wall;
a suction nozzle fluidly connected with the inlet;
a suction source fluidly connected to the suction nozzle and to the separator chamber for establishing and maintaining a dirt-containing airstream from the suction nozzle to the inlet; and
multiple circumferential fins directly attached to the sidewall of the collection chamber and comprising spaced first and second edges extending inwardly from the sidewall and a free end joined to the first and second edges;
wherein the multiple circumferential fins are laterally spaced from each other and vertically staggered relative to each other, and are configured to reduce debris re-entrainment in the collection chamber.
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Abstract
A vacuum cleaner with a cyclone module assembly comprises a cyclone separation chamber for separating dust and debris from air and a collection chamber for collecting dust and debris that is separated from the air in the cyclone separation chamber. The cyclone module assembly further includes at least one feature for directing contaminants downwardly, such as a circumferential fin that extends from the inside wall of the collection chamber or a helical step dividing the separation chamber from the collection chamber.
46 Citations
11 Claims
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1. A vacuum cleaner comprising:
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a cyclone separator having at least one separator chamber for separating contaminants from a dirt-containing airstream, and further comprising an inlet and an outlet in fluid communication with the separator chamber; a collection chamber associated with the cyclone separator for receiving contaminants separated in the separator chamber and having a cylindrical sidewall and a bottom wall; a suction nozzle fluidly connected with the inlet; a suction source fluidly connected to the suction nozzle and to the separator chamber for establishing and maintaining a dirt-containing airstream from the suction nozzle to the inlet; and multiple circumferential fins directly attached to the sidewall of the collection chamber and comprising spaced first and second edges extending inwardly from the sidewall and a free end joined to the first and second edges; wherein the multiple circumferential fins are laterally spaced from each other and vertically staggered relative to each other, and are configured to reduce debris re-entrainment in the collection chamber. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A vacuum cleaner comprising:
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a cyclone separator having at least one separator chamber for separating contaminants from a dirt-containing airstream, and further comprising an inlet and an outlet in fluid communication with the separator chamber; a collection chamber beneath the cyclone separator for receiving contaminants separated in the separator chamber and having a cylindrical sidewall and a bottom wall; a separator plate at a lower portion of the separator chamber and above the collection chamber, the separator plate defining a gap extending around a circumference of the separator plate for passage of dirt separated from the dirt-containing airstream in the separator chamber and into the collection chamber; a suction nozzle fluidly connected with the separator chamber inlet; a suction source fluidly connected to the suction nozzle and to the separator chamber for establishing and maintaining a dirt-containing airstream from the suction nozzle to the inlet; and multiple fins fixedly attached to, and extending helically at least partially around, the circumference of the sidewall of the collection chamber, the each fin further having an upper edge spaced vertically below the separator plate and above the bottom wall of the collection chamber, wherein the at least one circumferential fin is configured to reduce debris re-entrainment in the collection chamber;
wherein the multiple fins are circumferentially spaced from each other around the sidewall of the collection chamber and are vertically staggered relative to each other.
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Specification