Patent US4600410A successfully refreshed from Google Patents.
US4600410A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for separating particulate matter from a gaseous medium
Assignee: Atlantic Richfield Co
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Filing: 1984-12-19
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Granted: 1986-07-15
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Expires: 2004-12-19
Abstract
Abstract A process and an apparatus are disclosed for separating particulate matter from a contaminated gaseous medium containing the particulate matter, including the steps of passing the contaminated gaseous medium through a swirl-inducing zone to form a swirling-contaminated gaseous medium; introducing the swirling-contaminated gaseous medium into a cyclonic separation zone via an introduction zone to separate at least a portion of the particulate matter from the swirling-contaminated gaseous medium and to form a layer of particulate matter on the inner surface of a wall defining the periphery of the separation zone; deflecting the layer of particulate matter below the introduction zone; removing the gaseous product from the separation zone through an exhaust flow zone disposed radially inward from the swirl-inducing zone; and removing the particulate matter from a lower region of the separation zone.
Inventors
- 👤 Lloyd A. Baillie
- 👤 Amy L. Ryder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:00
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/02; B04C5/04; B04C5/08; B04C5/103
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
197 words
A process for separating particulate matter from a contaminated gaseous medium containing the particulate matter comprising: (a) passing said contaminated gaseous medium through means forming a gas inlet to a swirl-inducing zone and through said swirl-inducing zone to form a flow of swirling-contaminated gaseous medium; (b) introducing said swirling-contaminated gaseous medium into a cyclonic separation zone via an introduction zone adjacent to the inner surface of a wall defining the periphery of said separation zone to separate at least a portion of said particulate matter from said swirling-contaminated gaseous medium to form a laminar flow region extending radially inward from said wall including a layer of said particulate matter on said inner surface of said wall, and to form a gaseous product which is at least partially depleted of said particulate matter; (c) deflecting substantially only said flow of gaseous medium in said laminar flow region and including said layer of particulate matter below said gas inlet and said introduction zone; (d) removing said gaseous product from said separation zone through an exhaust flow zone disposed radially inward from said swirl-inducing zone; and (e) removing said particulate matter through a particulate removal zone below said separation zone.
Claim 2
Dependent Claim
197 words
A process for separating particulate matter from a contaminated gaseous medium containing the particulate matter comprising: (a) passing said contaminated gaseous medium through means forming a gas inlet to a swirl-inducing zone and through said swirl-inducing zone to form a flow of swirling-contaminated gaseous medium; (b) introducing said swirling-contaminated gaseous medium into a cyclonic separation zone via an introduction zone adjacent to the inner surface of a wall defining the periphery of said separation zone to separate at least a portion of said particulate matter from said swirling-contaminated gaseous medium to form a laminar flow region extending radially inward from said wall including a layer of said particulate matter on said inner surface of said wall, and to form a gaseous product which is at least partially depleted of said particulate matter; (c) deflecting substantially only said flow of gaseous medium in said laminar flow region and including said layer of particulate matter below said gas inlet and said introduction zone; (d) removing said gaseous product from said separation zone through an exhaust flow zone disposed radially inward from said swirl-inducing zone; and (e) removing said particulate matter through a particulate removal zone below said separation zone.
Claim 3
Dependent Claim
31 words
The process of claim 1 wherein said deflecting step comprises employing vane means extending radially inward from said wall of said separation zone a distance corresponding to said laminar flow region.
Claim 4
Dependent Claim
27 words
The process of claim 2 wherein said vane means extend radially inward from said wall of said separation zone between about 1/4 and 3/4 of an inch.
Claim 5
Independent Claim
182 words
An apparatus for separating particulate matter from a contaminated gaseous medium containing said particulate matter comprising: (a) means including a generally cylindrical wall and means forming a gas inlet opening in said wall for swirling said contaminated gaseous medium; (b) means for introducing said swirling-contaminated gaseous medium into a cyclonic separation zone in said apparatus via an introduction zone adjacent to said wall to separate at least a portion of said particulate matter from said swirling-contaminated gaseous medium and to form a laminar flow region including a layer of said particulate matter extending radially inward with respect to a central axis of said wall from said inner surface of said wall; (c) vane means extending radially inward from said wall to a point about the radial thickness of said laminar flow region and circumferentially from a point adjacent said inlet to a point below said inlet for deflecting said layer of particulate matter below said introduction zone; (d) means for removing a substantially contaminant-free gaseous product from said separation zone; and (e) means for removing said particulate matter from said separation zone.
Claim 6
Independent Claim
182 words
An apparatus for separating particulate matter from a contaminated gaseous medium containing said particulate matter comprising: (a) means including a generally cylindrical wall and means forming a gas inlet opening in said wall for swirling said contaminated gaseous medium; (b) means for introducing said swirling-contaminated gaseous medium into a cyclonic separation zone in said apparatus via an introduction zone adjacent to said wall to separate at least a portion of said particulate matter from said swirling-contaminated gaseous medium and to form a laminar flow region including a layer of said particulate matter extending radially inward with respect to a central axis of said wall from said inner surface of said wall; (c) vane means extending radially inward from said wall to a point about the radial thickness of said laminar flow region and circumferentially from a point adjacent said inlet to a point below said inlet for deflecting said layer of particulate matter below said introduction zone; (d) means for removing a substantially contaminant-free gaseous product from said separation zone; and (e) means for removing said particulate matter from said separation zone.
Claim 7
Dependent Claim
28 words
The apparatus of claim 4 wherein said vane means extend radially inward from said wall of said separation zone between about 1/4 and about 3/4 of an inch.
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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) | 1989-07-14 | 1990-01-13 | 1990-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-14 | 1994-01-13 | 1994-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-14 | 1998-01-13 | 1998-07-15 | $7700.00 | Window Closed / Lapsed |