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Patent US6926749B1 successfully refreshed from Google Patents.
US6926749B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separator with compact inlet
Assignee: CECO Environmental IP Inc
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Filing: 2003-06-27
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Granted: 2005-08-09
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Expires: 2023-06-27
Abstract
Abstract A cyclone separator is provided with a compact inlet path, in which the inner and outer walls of the inlet path are curved, with the inner wall having a radius that is essentially the same as the radius of the cyclone body wall and with the outer wall wrapping around the cyclone body wall and merging with the cyclone body wall.
Inventors
- 👤 Edwin D. Tenney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 18:37
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/08; B04C5/081; B01; B01D; B01D45/00; B01D45/12; B01D45/16; B04C5/02; B04C5/04
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
A cyclone separator, comprising: a cyclone body wall having a top and a bottom and defining a central vertical axis, said cyclone body wall forming a chamber having a circular cross-section, with the cyclone body wall having a larger first radius at the top and tapering to a smaller second radius at the bottom; said cyclone body wall defining an outlet opening at the bottom; and inner, outer, upper, and lower walls defining an inlet path into said cyclone chamber adjacent the top of said cyclone body wall, said inlet path defining an outer opening and an inner opening and extending from said outer opening to said inner opening, wherein said inner wall of said inlet path has a constant radius that is substantially the same as the radius of said cyclone body wall adjacent the top of said cyclone body wall; wherein said inner wall of said inlet path is a separate wall from said cyclone body wall and is centered on a different vertical axis from the central vertical axis of the cyclone body wall; and wherein the angular distance along said inner side wall from said outer opening to said inner opening is in the range of 600 to 120°.
Claim 2
Dependent Claim
203 words
A cyclone separator, comprising: a cyclone body wall having a top and a bottom and defining a central vertical axis, said cyclone body wall forming a chamber having a circular cross-section, with the cyclone body wall having a larger first radius at the top and tapering to a smaller second radius at the bottom; said cyclone body wall defining an outlet opening at the bottom; and inner, outer, upper, and lower walls defining an inlet path into said cyclone chamber adjacent the top of said cyclone body wall, said inlet path defining an outer opening and an inner opening and extending from said outer opening to said inner opening, wherein said inner wall of said inlet path has a constant radius that is substantially the same as the radius of said cyclone body wall adjacent the top of said cyclone body wall; wherein said inner wall of said inlet path is a separate wall from said cyclone body wall and is centered on a different vertical axis from the central vertical axis of the cyclone body wall; and wherein the angular distance along said inner side wall from said outer opening to said inner opening is in the range of 600 to 120°.
Claim 3
Dependent Claim
19 words
A cyclone separator as recited in claim 1 , and further comprising an outwardly-flared lip at said outer opening.
Claim 4
Dependent Claim
23 words
A cyclone separator as recited in claim 2 , wherein all of said outer, upper, and lower walls flare outwardly at said lip.
Claim 5
Dependent Claim
23 words
A cyclone separator as recited in claim 1 , wherein said inner wall merges with said cyclone body wall at the inner opening.
Claim 6
Dependent Claim
26 words
A cyclone separator as recited in claim 1 , wherein the height from said bottom wall to said top wall of said inlet path is constant.
Claim 7
Dependent Claim
22 words
A cyclone separator as recited in claim 5 , wherein the width from said inner wall to said outer wall is constant.
Claim 8
Dependent Claim
37 words
A cyclone separator as recited in claim 5 , wherein the width from said inner wall to said outer wall tapers from a larger width at said outer opening to a smaller width at said inner opening.
Claim 9
Dependent Claim
23 words
A cyclone separator as recited in claim 1 , and further comprising a vessel enclosing said cyclone body wall and said inlet path.
Claim 10
Dependent Claim
38 words
A cyclone separator as recited in claim 1 , wherein said outer wall of said inlet path becomes tangent to said cyclone body wall at a point and merges with said cyclone body wall at said tangent point.
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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) | 2008-08-08 | 2009-02-07 | 2009-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2012-08-08 | 2013-02-07 | 2013-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2016-08-08 | 2017-02-07 | 2017-08-09 | $7700.00 | Window Closed / Lapsed |