US6168641B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separator device for a vacuum cleaner
Assignee: Electrolux AB
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Filing: 1999-06-16
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Granted: 2001-01-02
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Expires: 2019-06-16
Abstract
Abstract A vacuum cleaner cyclone separator having a cyclone with a first end wall, a second opposite end wall ( 35,36,135 ), and an intermediate part ( 38,130 ), which has the shape of either a cylinder or, at least partly, an up-side-down truncated cone. The intermediate part has an outlet opening ( 39,131 ) for particles through which particles separated by the cyclone leave from the intermediate part toward the second end wall. The cyclone is, close to the first end wall, provided with a generally tangentially-directed air inlet ( 33,129 ) for dust laden air and also has a tube shaped air outlet ( 50,142 ) extending from the first end wall ( 35 ) toward the intermediate part and communicating with a vacuum source ( 15,111 ). The particle outlet opening ( 39,131 ) continues into a separation part ( 40,134 ) having a side wall opening ( 41,137 ) through which the particles leave mainly perpendicular to the rotational axis (R) of the vortex created in the cyclone to a particle collecting ( 27 ) container placed outside the separation part ( 40,134 ).
Inventors
- 👤 Lars Tuvin
- 👤 Lars Kilström
- 👤 Stefan Petersson
- 👤 Patrik Pastuhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:08
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/185; A; A47; A47L; A47L5/00; A47L5/12; A47L5/22; A47L5/36; A47L5/362; A47L9/00; A47L9/10; A47L9/102; A47L9/12; A47L9/122; A47L9/14; A47L9/1418; A47L9/16; A47L9/1608; A47L9/165; A47L9/1658; A47L9/1666; A47L9/1683; A47L9/1691; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
211 words
A device for a vacuum cleaner comprising a cyclone separator having a cyclone comprising a first end wall ( 35 ), a second, opposite end wall ( 135 ), and an intermediate part ( 38 , 130 ), said intermediate part being either shaped as a cylinder or, at least partly, a truncated cone, the intermediate part has a particle outlet opening ( 39 , 131 ) through which particles separated by the cyclone leave from the intermediate part toward the second end wall, the cyclone, close to the first end wall, being provided with a generally tangentially-directed air inlet ( 33 , 129 ) for dust laden air and having a tube-shaped air outlet ( 50 , 142 ) extending from the first end wall ( 35 ) into the intermediate part and communicating with a vacuum source ( 15 , 111 ), wherein said particle outlet opening ( 39 , 131 ) continues into a separation part ( 40 , 134 ) having a side wall opening ( 41 , 137 ) through which particles leave generally perpendicular to an axis of rotation (R) of a vortex created in the cyclone to a particle collecting ( 27 ) container placed outside the separation part ( 40 , 134 ).
Claim 2
Independent Claim
211 words
A device for a vacuum cleaner comprising a cyclone separator having a cyclone comprising a first end wall ( 35 ), a second, opposite end wall ( 135 ), and an intermediate part ( 38 , 130 ), said intermediate part being either shaped as a cylinder or, at least partly, a truncated cone, the intermediate part has a particle outlet opening ( 39 , 131 ) through which particles separated by the cyclone leave from the intermediate part toward the second end wall, the cyclone, close to the first end wall, being provided with a generally tangentially-directed air inlet ( 33 , 129 ) for dust laden air and having a tube-shaped air outlet ( 50 , 142 ) extending from the first end wall ( 35 ) into the intermediate part and communicating with a vacuum source ( 15 , 111 ), wherein said particle outlet opening ( 39 , 131 ) continues into a separation part ( 40 , 134 ) having a side wall opening ( 41 , 137 ) through which particles leave generally perpendicular to an axis of rotation (R) of a vortex created in the cyclone to a particle collecting ( 27 ) container placed outside the separation part ( 40 , 134 ).
Claim 3
Dependent Claim
39 words
The device according to claim 1 , further comprising a coarse separator ( 25 , 118 ) that, with regard to a direction of air flowing through the vacuum cleaner, is connected in series with and before the cyclone.
Claim 4
Dependent Claim
39 words
The device according to claim 1 , wherein the cyclone is positioned such that said axis of rotation (R) is inclined less than 45° to a horizontal plane when the vacuum cleaner is placed on a horizontal surface (U).
Claim 5
Dependent Claim
39 words
The device according to claim 2 , wherein the cyclone is positioned such that said axis of rotation (R) is inclined less than 45° to a horizontal plane when the vacuum cleaner is placed on a horizontal surface (U).
Claim 6
Dependent Claim
63 words
The device according to claim 1 , wherein the side wall opening ( 41 , 137 ) of the separation part ( 40 , 134 ) continues into a channel ( 42 ), said channel having a wall ( 43 , 136 ) which, as seen in a direction which is perpendicular to a length of the axis of rotation (R), is spiral-shaped.
Claim 7
Dependent Claim
63 words
The device according to claim 2 , wherein the side wall opening ( 41 , 137 ) of the separation part ( 40 , 134 ) continues into a channel ( 42 ), said channel having a wall ( 43 , 136 ) which, as seen in a direction which is perpendicular to a length of the axis of rotation (R), is spiral-shaped.
Claim 8
Dependent Claim
63 words
The device according to claim 3 , wherein the side wall opening ( 41 , 137 ) of the separation part ( 40 , 134 ) continues into a channel ( 42 ), said channel having a wall ( 43 , 136 ) which, as seen in a direction which is perpendicular to a length of the axis of rotation (R), is spiral-shaped.
Claim 9
Dependent Claim
63 words
The device according to claim 4 , wherein the side wall opening ( 41 , 137 ) of the separation part ( 40 , 134 ) continues into a channel ( 42 ), said channel having a wall ( 43 , 136 ) which, as seen in a direction which is perpendicular to a length of the axis of rotation (R), is spiral-shaped.
Claim 10
Dependent Claim
42 words
The device according to claim 2 , wherein each of the coarse separator ( 25 ), the cyclone, and the collecting container ( 27 ) are provided with a wall part that is integral with a removable cover plate ( 37 ).
Claim 11
Dependent Claim
42 words
The device according to claim 9 , wherein the coarse separator ( 25 ), the cyclone, the collecting container ( 27 ), and the cover plate constitute a removable unit ( 14 ) arranged in a vacuum cleaner housing ( 10 ).
Claim 12
Dependent Claim
44 words
The device according to claim 10 , wherein the unit ( 14 ) is provided with a handle ( 60 ) which, when the unit is placed in the vacuum cleaner housing ( 10 ), also serves as a handle for the vacuum cleaner.
Claim 13
Dependent Claim
58 words
The device cleaner according to claim 9 , wherein the coarse separator ( 25 ), the cyclone, and the collecting container ( 27 ) have generally equal lengths and are placed beside and parallel to one another, the cover plate ( 37 ) being an end wall for the coarse separator, the dust container, and the cyclone chamber.
Claim 14
Dependent Claim
58 words
The device cleaner according to claim 10 , wherein the coarse separator ( 25 ), the cyclone, and the collecting container ( 27 ) have generally equal lengths and are placed beside and parallel to one another, the cover plate ( 37 ) being an end wall for the coarse separator, the dust container, and the cyclone chamber.
Claim 15
Dependent Claim
58 words
The device cleaner according to claim 11 , wherein the coarse separator ( 25 ), the cyclone, and the collecting container ( 27 ) have generally equal lengths and are placed beside and parallel to one another, the cover plate ( 37 ) being an end wall for the coarse separator, the dust container, and the cyclone chamber.
Claim 16
Dependent Claim
26 words
The device according to claim 9 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 17
Dependent Claim
26 words
The device according to claim 10 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 18
Dependent Claim
26 words
The device according to claim 11 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 19
Dependent Claim
26 words
The device according to claim 12 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 20
Dependent Claim
26 words
The device according to claim 13 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 21
Dependent Claim
26 words
The device according to claim 14 , wherein the tube shaped air outlet ( 50 ) is permanently connected to the cover plate ( 37 ).
Claim 22
Dependent Claim
43 words
The device according to claim 1 , wherein a length of the cyclone between the end walls ( 35 , 36 ) is between about 100 to 300 mm and a maximum diameter of the cyclone is between about 50 to 150 mm.
Claim 23
Dependent Claim
35 words
The device according to claim 21 , wherein a length of the tube shaped air outlet ( 50 ) extending into the cyclone is between about 20 to 50% of the length of the cyclone.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2004-01-02 | 2004-07-03 | 2005-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-01-02 | 2008-07-03 | 2009-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-01-02 | 2012-07-03 | 2013-01-02 | $7700.00 | Window Closed / Lapsed |