Cyclonic vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a body portion;
a nozzle portion having a nozzle opening with a first conduit leading from the nozzle opening to the body portion;
a cyclone having a cyclone inlet, a cyclone outlet, and a cyclone slinger, wherein the first conduit leads to the cyclone inlet and the cyclone is configured to contain a swirling airflow traveling from the cyclone inlet through the cyclone slinger and out the cyclone outlet, and the cyclone slinger comprises a bottom platform, a peripheral wall extending upwardly from the bottom platform and having one or more side ports, and a slinger passage leading away from at least one of the one or more side ports of the peripheral wall, the slinger passage leading to a bottom port opening substantially downwardly; and
a dirt cup removably retained within the body portion underneath the cyclone slinger for retaining dirt or other debris exiting from the cyclone slinger through the bottom port; and
a suction source disposed in the body portion or the nozzle portion for generating the airflow within the vacuum cleaner, wherein a second conduit leads from the cyclone outlet to an inlet of the suction source.
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Accused Products
Abstract
A cyclonic vacuum cleaner includes a body portion, a nozzle portion and a dirt cup which is removable from the body portion. The dirt cup collects dirt and other debris separated by a cyclone and a cyclone slinger portion in the body portion. A main filter may be housed in a transparent filter door downstream of the cyclone. The dirt cup may be inserted into and sealingly held within the body portion by using a rotational camming structure.
215 Citations
53 Claims
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1. A vacuum cleaner comprising:
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a body portion;
a nozzle portion having a nozzle opening with a first conduit leading from the nozzle opening to the body portion;
a cyclone having a cyclone inlet, a cyclone outlet, and a cyclone slinger, wherein the first conduit leads to the cyclone inlet and the cyclone is configured to contain a swirling airflow traveling from the cyclone inlet through the cyclone slinger and out the cyclone outlet, and the cyclone slinger comprises a bottom platform, a peripheral wall extending upwardly from the bottom platform and having one or more side ports, and a slinger passage leading away from at least one of the one or more side ports of the peripheral wall, the slinger passage leading to a bottom port opening substantially downwardly; and
a dirt cup removably retained within the body portion underneath the cyclone slinger for retaining dirt or other debris exiting from the cyclone slinger through the bottom port; and
a suction source disposed in the body portion or the nozzle portion for generating the airflow within the vacuum cleaner, wherein a second conduit leads from the cyclone outlet to an inlet of the suction source. - View Dependent Claims (2, 3, 5, 7, 14, 15, 16, 19, 25, 26)
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4. (canceled)
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6. (canceled)
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8-13. -13. (canceled)
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17-18. -18. (canceled)
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20-24. -24. (canceled)
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27-28. -28. (canceled)
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29. A vacuum cleaner comprising:
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a body portion;
a nozzle portion having a nozzle opening with a first conduit leading from the nozzle opening to the body portion;
the body portion including a cyclone having a cyclone inlet, a cyclone outlet, and a cyclone slinger, wherein the first conduit leads to the cyclone inlet and the cyclone is configured to contain a swirling airflow traveling from the cyclone inlet through the cyclone slinger and out the cyclone outlet, and the cyclone slinger comprises;
a bottom platform, a peripheral wall extending upwardly from the bottom platform and having at least a first side port and a second side port, a first slinger passage leading away from the first side port and leading to a first bottom port opening substantially downwardly, and a second slinger passage leading away from the second side port and leading to a second bottom port opening substantially downwardly;
a dirt cup removably retained within the body portion underneath the cyclone slinger for retaining dirt and other debris exiting from the cyclone slinger through the first or second bottom port; and
a suction source disposed in the body portion or the nozzle portion for generating the airflow within the vacuum cleaner, wherein a second conduit leads from the cyclone outlet to an inlet of the suction source. - View Dependent Claims (30, 31, 36)
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32-35. -35. (canceled)
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37. An upright vacuum cleaner comprising:
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an upright body portion pivotally secured to a suction base;
a cyclone separator positioned in and axially extending along the upright body portion, wherein the cyclone separator has a top end and a bottom end;
the cyclone separator including a frustoconical portion having a tangential airstream entry at the top end, a central airstream exit at the top end, and a return air platform at the bottom end;
at least one slinger arm adjacent the bottom end of and fluidically connected to the cyclone separator, the slinger arm having at least one generally tangential, radially outwardly extending sidewall, a top wall, an end wall and a bottom outlet port; and
a dirt cup positioned below the cyclone separator to receive dirt separated from an airstream flowing through the cyclone separator, wherein the dirt passes downwardly through the bottom outlet port of the slinger arm to be received in the dirt cup such that the dirt is thereby isolated from the cyclone separator by the platform.
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38. A vacuum cleaner comprising:
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a body portion;
a nozzle portion having a nozzle opening with a first conduit leading from the nozzle opening to a filter chamber in the body portion, wherein the filter chamber contains a main filter and comprises a front plenum and a back plenum, such that the front plenum is defined between a front wall of the filter chamber and the main filter, and the back plenum is defined between a back wall of the filter chamber and the main filter;
a suction source disposed in the body portion or the nozzle portion for generating an airflow within the vacuum cleaner; and
a second conduit leading from the filter chamber to an inlet of the suction source. - View Dependent Claims (42, 48)
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39-41. -41. (canceled)
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43-47. -47. (canceled)
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49-52. -52. (canceled)
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53. A vacuum cleaner comprising:
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a cyclonic chamber to separate dirt from air, the cyclonic chamber having a slinger arm disposed at the bottom of the cyclonic chamber including a tangential inlet opening, a passage extending circumferentially, downwardly and radially outwardly from the inlet opening, and an outlet opening from the passage leading to a dirt cup; and
a filter viewable through a door positioned downstream of the cyclonic chamber.
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Specification