Upright vacuum cleaner
First Claim
Patent Images
1. A vacuum cleaner comprising:
- a cleaner body;
a dust collector coupled to the cleaner body, the dust collector comprising a cyclonic chamber and a dust collecting container, the cyclonic chamber includes a primary cyclone being in fluid communication with the cleaner body and having a primary airflow inlet located on an upper portion of the primary cyclone at one side of the primary cyclone and a primary airflow outlet located on an upper portion of the primary cyclone at the center of the primary cyclone, and at least one secondary cyclone disposed around the primary cyclone for separating contaminants entrained in the airflow discharged from the primary cyclone, and the dust collecting container includes a primary dust storing part for storing contaminants separated in the primary cyclone, and a secondary dust storing part for storing contaminants separated in the at least secondary cyclone;
a suction source located in the cleaner body, and having a suction source inlet in fluid communication with the dust collector and a suction source outlet; and
a main filter assembly in fluid communication with the dust collector for filtering contaminants from the airflow discharged from the at least one secondary cyclone.
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Accused Products
Abstract
A vacuum cleaner includes a cleaner body, a dust collector coupled to the cleaner body, a dust collecting container and a filter assembly. The dust collector includes a cyclonic chamber including a primary cyclone in fluid communication with the cleaner body and having a primary airflow inlet located on an upper portion of the primary cyclone at one side of the primary cyclone and a primary airflow outlet located on an upper portion of the primary cyclone at the center of the primary cyclone, and at least one secondary cyclone disposed around the primary cyclone for separating contaminants entrained in the airflow discharged from the primary cyclone.
168 Citations
24 Claims
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1. A vacuum cleaner comprising:
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a cleaner body;
a dust collector coupled to the cleaner body, the dust collector comprising a cyclonic chamber and a dust collecting container, the cyclonic chamber includes a primary cyclone being in fluid communication with the cleaner body and having a primary airflow inlet located on an upper portion of the primary cyclone at one side of the primary cyclone and a primary airflow outlet located on an upper portion of the primary cyclone at the center of the primary cyclone, and at least one secondary cyclone disposed around the primary cyclone for separating contaminants entrained in the airflow discharged from the primary cyclone, and the dust collecting container includes a primary dust storing part for storing contaminants separated in the primary cyclone, and a secondary dust storing part for storing contaminants separated in the at least secondary cyclone;
a suction source located in the cleaner body, and having a suction source inlet in fluid communication with the dust collector and a suction source outlet; and
a main filter assembly in fluid communication with the dust collector for filtering contaminants from the airflow discharged from the at least one secondary cyclone. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A vacuum cleaner comprising:
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a nozzle section defining a suction opening;
a cleaner body pivotally mounted to the nozzle section and in fluid communication with the nozzle section;
a primary cyclone for separating contaminants from an airflow, the primary cyclone being in fluid communication with the suction opening;
at least one secondary cyclone for separating contaminants entrained in the airflow discharged from the primary cyclone;
a suction source having a suction source inlet in fluid communication with the at least one secondary cyclone and a suction source outlet in fluid communication with the atmosphere; and
a thermal protection device for preventing a motor of the suction source from overheating. - View Dependent Claims (14, 15, 16, 17, 18)
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19. An upright vacuum cleaner comprising:
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a nozzle section defining a suction opening;
a cleaner body coupled with the nozzle section about a hinge;
a primary cyclone for separating contaminants from an airflow, the primary cyclone being in fluid communication with the suction opening;
at least one secondary cyclone for separating contaminants entrained in the airflow discharged from the primary cyclone;
a suction source having a suction source inlet in fluid communication with the at least one secondary cyclone and a suction source outlet in fluid communication with the atmosphere; and
a main filter assembly including a main filter element, the main filter element being located on an upper portion of the at least one secondary cyclone. - View Dependent Claims (20, 21, 22, 23)
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24. A method of cleaning a surface with an upright vacuum cleaner comprising a suction source, a cleaner body, a dust collector coupled to the cleaner body, a dust collecting container and a filter assembly, the dust collector including a cyclonic chamber having a primary cyclone in fluid communication with the cleaner body and at least one secondary cyclone disposed around a periphery of the primary cyclone, the method comprising:
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activating the suction source to produce an airflow pathway for entraining contaminants from the surface into the airflow pathway, and exhausting air from the upright vacuum cleaner, wherein the airflow pathway extends (a) from the cleaner body of the vacuum cleaner into the primary cyclone;
(b) in a spiral within the primary cyclone so that the entrained contaminants are separated from the suction airflow;
(c) upwardly from the primary cyclone into the at least one secondary cyclone;
(d) in a spiral within the at least one secondary cyclone so that contaminants are separated from the airflow flowing into the secondary cyclone; and
(e) upwardly from the secondary cyclone and passing through the main filter assembly.
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Specification