Vacuum cleaner with multiple cyclonic dirt separators and bottom discharge dirt cup
First Claim
1. A vacuum cleaner comprising:
- a cyclonic separator comprising;
a first cyclone having a side wall defining a first cyclonic chamber for separating contaminants from an air stream as the air stream travels about the first cyclonic chamber from an air inlet to an air outlet; and
a plurality of secondary cyclones downstream from the first cyclone, each of the secondary cyclone having a side wall defining a second cyclonic chamber for further separating contaminants from the air stream as the air stream travels about the second cyclonic chamber from an air inlet to an air outlet, and the secondary cyclones are arranged around the first cyclone side wall and form at least one gap between adjacent secondary cyclones to expose the first cyclone side wall to the outside of the cyclonic separator at the at least one gap;
a nozzle housing including a suction opening coupled with the air inlet of the first cyclonic chamber; and
a suction source coupled to the suction opening and to the first and second cyclonic chambers and adapted to establish and maintain the air stream from the suction opening, through the first cyclonic airflow chamber, and through the second cyclonic airflow chambers.
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Accused Products
Abstract
A vacuum cleaner comprises a cyclonic separator having a first cyclone and a plurality of downstream secondary cyclones. The first cyclone comprises a side wall defining a first cyclonic chamber, and the secondary cyclones each comprise a side wall defining a second cyclonic chamber. A dirt cup assembly is mounted below the cyclonic separator to collect contaminants separated in the first and second cyclonic chambers. The secondary cyclones can be arranged around the first cyclone side wall and form a gap between adjacent secondary cyclones so that the first cyclone side wall is exposed at the gap. A working air conduit can extend through the first cyclone and the dirt cup assembly to couple the secondary cyclones to a suction source located below the dirt cup assembly. Furthermore, the secondary cyclones can have a vortex stabilizer.
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Citations
29 Claims
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1. A vacuum cleaner comprising:
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a cyclonic separator comprising; a first cyclone having a side wall defining a first cyclonic chamber for separating contaminants from an air stream as the air stream travels about the first cyclonic chamber from an air inlet to an air outlet; and a plurality of secondary cyclones downstream from the first cyclone, each of the secondary cyclone having a side wall defining a second cyclonic chamber for further separating contaminants from the air stream as the air stream travels about the second cyclonic chamber from an air inlet to an air outlet, and the secondary cyclones are arranged around the first cyclone side wall and form at least one gap between adjacent secondary cyclones to expose the first cyclone side wall to the outside of the cyclonic separator at the at least one gap; a nozzle housing including a suction opening coupled with the air inlet of the first cyclonic chamber; and a suction source coupled to the suction opening and to the first and second cyclonic chambers and adapted to establish and maintain the air stream from the suction opening, through the first cyclonic airflow chamber, and through the second cyclonic airflow chambers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A vacuum cleaner comprising:
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a cyclonic separator comprising; a first cyclone having a side wall defining a first cyclonic chamber for separating contaminants from an air stream as the air stream travels about the first cyclonic chamber from an air inlet to an air outlet; a plurality of secondary cyclones downstream from the first cyclone, each of the secondary cyclones having a side wall defining a second cyclonic chamber for further separating contaminants from the air stream as the air stream travels about the second cyclonic chamber from an air inlet to an air outlet; a dirt cup assembly mounted beneath the cyclonic dirt separator to collect the contaminants separated by the first cyclonic chamber and the second cyclonic chambers; a nozzle housing including a suction opening coupled with the air inlet of the first cyclonic chamber; a suction source positioned below the dirt cup assembly and having an inlet fluidly coupled to the suction opening in the nozzle housing through the air inlets and air outlets of the first cyclone and the secondary cyclones, and the suction source is adapted to selectively establish and maintain the air stream from the suction opening, through the first cyclonic airflow chamber, and through the second cyclonic airflow chambers; and a working air conduit extending through the first cyclone and the dirt cup assembly and fluidly coupling the air outlets of the second cyclonic chambers to the inlet of the suction source. - View Dependent Claims (20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification