Patent US6974488B2 successfully refreshed from Google Patents.
US6974488B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaner
Assignee: Dyson Technology Ltd
•
Filing: 2002-01-28
•
Granted: 2005-12-13
•
Expires: 2022-01-28
Abstract
Abstract A vacuum cleaner with an external surface incorporates a cyclonic separating apparatus that includes a plurality of cyclones arranged in parallel with one another. The cyclones each have a tapered body with an outside wall and are arranged so that at least a part of each outside wall forms part of the external surface of the vacuum cleaner.
Inventors
- 👤 James Dyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:34
CPC Classifications
A; A47; A47L; A47L9/00; A47L9/10; A47L9/16; A47L9/1616; A47L9/1625; A47L5/00; A47L5/12; A47L5/22; A47L5/28; A47L9/1641; B; B01; B01D; B01D45/00; B01D45/12; B01D45/16; B04; B04C; B04C5/00; B04C5/02; B04C5/04; B04C5/24; B04C5/26; B04C5/28; Y; Y10; Y10S; Y10S55/00; Y10S55/03
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
86 words
A vacuum cleaner, comprising a body having an external surface, a suction inlet on the body for conveying dirty air from outside the vacuum cleaner into the body and a motor configured to draw the dirty air into the body through the suction inlet, the body comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner.
Claim 2
Dependent Claim
86 words
A vacuum cleaner, comprising a body having an external surface, a suction inlet on the body for conveying dirty air from outside the vacuum cleaner into the body and a motor configured to draw the dirty air into the body through the suction inlet, the body comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner.
Claim 3
Dependent Claim
23 words
A vacuum cleaner as claimed in claim 1 , wherein the cyclones are equi-angularly arranged about an axis of the cyclonic separating apparatus.
Claim 4
Dependent Claim
84 words
A vacuum cleaner having an external surface and incorporating cyclonic separating apparatus comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner, wherein the cyclones are equi-angularly arranged about an axis of the cyclonic separating apparatus, and wherein each cyclone has an axis which is inclined towards the axis of the cyclonic separating apparatus.
Claim 5
Dependent Claim
84 words
A vacuum cleaner having an external surface and incorporating cyclonic separating apparatus comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner, wherein the cyclones are equi-angularly arranged about an axis of the cyclonic separating apparatus, and wherein each cyclone has an axis which is inclined towards the axis of the cyclonic separating apparatus.
Claim 6
Dependent Claim
53 words
A vacuum cleaner as claimed in claim 3 , wherein the cyclonic separating apparatus comprises at least one further cyclone arranged in parallel to the plurality of cyclones, the further cyclone having a tapering body with an outside wall which does not form a part of the external surface of the vacuum cleaner.
Claim 7
Dependent Claim
29 words
A vacuum cleaner as claimed in claim 4 , wherein the further cyclone is arranged closer to the axis of the cyclonic separating apparatus than the plurality of cyclones.
Claim 8
Dependent Claim
21 words
A vacuum cleaner as claimed in claim 1 , 2 or 3 , wherein each tapering body is frusto-conical in shape.
Claim 9
Dependent Claim
25 words
A vacuum cleaner as claimed in claim 1 , 2 or 3 , wherein all of the cyclones are substantially the same size and shape.
Claim 10
Dependent Claim
39 words
A vacuum cleaner as claimed in claim 3 , wherein the cyclonic separating apparatus comprises an upstream cyclone having an outer wall, at least a part of which forms a part of the external surface of the vacuum cleaner.
Claim 11
Dependent Claim
22 words
A vacuum cleaner as claimed in claim 8 , wherein the outer wall of the upstream cyclone is substantially cylindrical in shape.
Claim 12
Dependent Claim
31 words
A vacuum cleaner as claimed in claim 9 , wherein the plurality of cyclones arranged in parallel to one another are located wholly outside the outer wall of the upstream cyclone.
Claim 13
Dependent Claim
51 words
A vacuum cleaner as claimed in claim 1 or 2 , further comprising at least one further cyclone arranged in parallel to the plurality of cyclones, the further cyclone having a tapering body with an outside wall which does not form a part of the external surface of the vacuum cleaner.
Claim 14
Dependent Claim
29 words
A vacuum cleaner as claimed in claim 11 , wherein the further cyclone is arranged closer to the axis of the cyclonic separating apparatus than the plurality of cyclones.
Claim 15
Dependent Claim
37 words
A vacuum cleaner as claimed in claim 1 or 2 , further comprising an upstream cyclone having an outer wall, at least a part of which forms a part of the external surface of the vacuum cleaner.
Claim 16
Dependent Claim
74 words
A vacuum cleaner having an external surface and incorporating cyclonic separating apparatus comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner, wherein each cyclone has a lower end and an upper end, and wherein the lower end is larger than the upper end.
Claim 17
Dependent Claim
74 words
A vacuum cleaner having an external surface and incorporating cyclonic separating apparatus comprising a plurality of cyclones arranged in parallel to one another, each cyclone including a tapering body having an outside wall, wherein at least a part of each outside wall forms part of the external surface of the vacuum cleaner, wherein each cyclone has a lower end and an upper end, and wherein the lower end is larger than the upper end.
Claim 18
Dependent Claim
22 words
A vacuum cleaner as claimed in claim 14 , wherein the upper end of each cyclone opens into a common collection area.
References Cited (Backward Citations)
US3095369A
Cited
US3425192A
Cited
US3862041A
Cited
JPS5214775U
Cited
JPS5222176A
Cited
EP0018197A1
Cited
US4373228A
Cited
USRE32257E
Cited
EP0042723B1
Cited
US4820427A
Cited
FR2619498A1
Cited
US4927437A
Cited
JPH08322769A
Cited
WO2000004816A1
Cited
US6553612B1
Cited
US6238451B1
Cited
US6324723B1
Cited
US6406505B1
Cited
USD475820S1
Cited
US6607572B2
Cited
USD484286S1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2008-12-12 | 2009-06-13 | 2009-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-12-12 | 2013-06-13 | 2013-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-12-12 | 2017-06-13 | 2017-12-13 | $7700.00 | Window Closed / Lapsed |