US6332239B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner with tangential separation of trash
Assignee: SEB SA
•
Filing: 1999-05-12
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Granted: 2001-12-25
•
Expires: 2019-05-12
Abstract
Abstract The invention concerns a device for separating and collecting trash for a trash collecting apparatus such as a vacuum cleaner, said device comprising a first tube with an air intake ( 13 ) capable of receiving the air sucked in and an air delivery outlet, a screw ( 11 ) substantially axially positioned in said first tube ( 8 a ), a second tube ( 9 ) with a diameter smaller than the screw external diameter and coaxially located in the first tube ( 8 a ) extension, in ventilating communication though one end to the first tube ( 8 a ) delivery end and connected by its other end to the suction unit by a first discharge conduit ( 14 ). The invention is characterised in that said device comprises a third tube ( 8 b ) arranged around the second tube ( 9 ) and connected to the first tube ( 8 a ) delivery end so as to provide between the second and third tubes ( 9, 8 b ) a second conduit for discharging the trash towards a filter and/or a container ( 10 ) in a secondary output flow.
Inventors
- 👤 Roland Dubos
- 👤 Vincent Fleurier
- 👤 Marc Thery
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:43
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1608; A47L9/102; A47L9/104; A47L9/1683
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
248 words
A device for separating and collecting dirt from a floor, a dirt collecting appliance of the vacuum cleaner type comprising particularly a suction group connected to the surface to be vacuumed by a pipe ( 2 , 3 , 4 ) terminated by a floor nozzle ( 1 ), said device having a first tube ( 8 a ) having an air intake ( 13 ) capable of receiving suctioned air and guided by the pipe and an air delivery outlet, a screw ( 11 ) positioned in a substantially axial manner in this first tube ( 8 a ), a second tube ( 9 ) having a diameter less than the exterior diameter of the screw ( 11 ) and situated coaxially in the extension of the first tube ( 8 a ), in ventilating communication by one end to the delivery end of the first tube ( 8 a ) and in communication via its other end with the suction group by a first evacuation conduit ( 14 ), characterized in that the device comprises a third tube ( 8 b ) arranged around the second tube ( 9 ) and connected to the delivery end of the first tube ( 8 a ) in such a manner as to arrange, between the second and third tube ( 9 , 8 b ) a second conduit ( 21 ) for discharging dirt toward a filter and/or a container ( 10 ) in a secondary output flow.
Claim 2
Independent Claim
248 words
A device for separating and collecting dirt from a floor, a dirt collecting appliance of the vacuum cleaner type comprising particularly a suction group connected to the surface to be vacuumed by a pipe ( 2 , 3 , 4 ) terminated by a floor nozzle ( 1 ), said device having a first tube ( 8 a ) having an air intake ( 13 ) capable of receiving suctioned air and guided by the pipe and an air delivery outlet, a screw ( 11 ) positioned in a substantially axial manner in this first tube ( 8 a ), a second tube ( 9 ) having a diameter less than the exterior diameter of the screw ( 11 ) and situated coaxially in the extension of the first tube ( 8 a ), in ventilating communication by one end to the delivery end of the first tube ( 8 a ) and in communication via its other end with the suction group by a first evacuation conduit ( 14 ), characterized in that the device comprises a third tube ( 8 b ) arranged around the second tube ( 9 ) and connected to the delivery end of the first tube ( 8 a ) in such a manner as to arrange, between the second and third tube ( 9 , 8 b ) a second conduit ( 21 ) for discharging dirt toward a filter and/or a container ( 10 ) in a secondary output flow.
Claim 3
Dependent Claim
23 words
A device according to claim 1 , characterized in that the second discharge conduit ( 21 ) is connected to a suction group.
Claim 4
Dependent Claim
37 words
A device according to claim 2 , characterized in that the secondary flow rate in the second discharge circuit ( 21 ) is maintained, by a second suction group, between 5 and 30% of main flow rate.
Claim 5
Dependent Claim
31 words
A device according to claim 1 , characterized in that the second discharge conduit ( 21 ) is connected, by a shunt, to the main suction group of the vacuum cleaner.
Claim 6
Dependent Claim
48 words
A device according to claim 1 , characterized in that the second discharge conduit ( 21 ) is short and leads directly into a sealed dust container ( 10 ) of which the ventilating outlet is completed by a coarse filter ( 22 ) provided to retain dirt.
Claim 7
Dependent Claim
27 words
A device according to claim 5 , characterized in that the second tube ( 9 ) includes lateral openings ( 16 ) close to its inlet end.
Claim 8
Dependent Claim
69 words
A device according to claim 5 , characterized in that the third tube ( 8 b ) includes an opening ( 17 ) in its wall in the direction of the container ( 10 ) in order that the space provided between the second tube ( 9 ) and the third tube ( 8 b ) is in communication with the internal volume of the container ( 10 ).
Claim 9
Dependent Claim
32 words
A device according to claim 1 , characterized in that the exterior diameter of the screw is substantially equal to the interior diameter (K) of the first tube ( 8 a ).
Claim 10
Dependent Claim
21 words
A device according to claim 1 , characterized in that the screw ( 11 ) does not have a central bore.
Claim 11
Dependent Claim
20 words
A device according to claim 1 , characterized in that the screw ( 11 ) has one or several threads.
Claim 12
Dependent Claim
28 words
A device according to claim 1 , characterized in that the pitch of at least one of the threads of the screw ( 11 ) is longitudinally variable.
Claim 13
Dependent Claim
60 words
A device according to claim 1 , characterized in that the end ( 30 ) of the screw ( 11 ) situated at the air intake side is partially blocked in a manner such that suction of air by the screw ( 11 ) at this end is achieved along a substantially tubular channel and does not include any crest.
Claim 14
Dependent Claim
47 words
A device according to claim 1 , characterized in that a distance (B) at least equal to 10% of the internal diameter (K) of the tube ( 8 a ), is provided between the second tube ( 9 ) and the third tube ( 8 b ).
Claim 15
Dependent Claim
47 words
A device according to claim 1 , characterized in that the second tube ( 9 ) is disposed at a distance (A) from the screw ( 11 ) corresponding to around 5 to 20% of the internal diameter (K) of the first tube ( 8 a ).
Claim 16
Dependent Claim
24 words
A device according to claim 1 , characterized in that the device is integrated into the housing ( 6 ) of the vacuum cleaner.
Claim 17
Dependent Claim
20 words
A device according to claim 1 , characterized in that the device is mounted substantially horizontal in the vacuum cleaner.
Claim 18
Dependent Claim
79 words
A device according to claim 5 , characterized in that the device is an accessory for a vacuum cleaner capable of being inserted into the suction ventilating path, by connecting the intake end of the first tube ( 8 a ) to the conduit including the floor nozzle ( 1 ) coupled to the surface to be vacuumed, and by connecting the discharge end of the second tube ( 9 ) to the suction circuit of the vacuum cleaner.
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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) | 2004-12-24 | 2005-06-25 | 2005-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-12-24 | 2009-06-25 | 2009-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-12-24 | 2013-06-25 | 2013-12-25 | $7700.00 | Window Closed / Lapsed |