US3811249A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas washing device with reversing spray paths
Assignee: Peabody Engineering Corp
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Filing: 1972-12-26
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Granted: 1974-05-21
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Expires: 1992-12-26
Abstract
Abstract Gas washing apparatus including a gas duct and an axial spray nozzle adapted to produce a radial spray. The duct includes a ring having an annular recess shaped to receive and reverse the direction of the spray particles with a minimum loss in kinetic energy. The spray particles are reversed in direction a plurality of times to pass repeatedly through the gas stream until their kinetic energy becomes expended. The spray may or may not be used in conjunction with a venturi throat in the duct.
Inventors
- 👤 O Arnold
- 👤 C Vancini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:13
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
30 words
Gas washing apparatus as set forth in claim 1, in which said innermost surface extends below said recess and is offset radially outwardly sufficiently to be shielded by said shoulder.
Claim 2
Dependent Claim
54 words
Gas washing apparatus as set forth in claim 1 in which said deflector means includes a disc adapted to deflect the liquid from said nozzle radially outwardly around its periphery and said axial deflector member comprises a cone carried by said disc and coaxial therewith and having an inwardly sloping slightly curved peripheral surface.
Claim 3
Dependent Claim
25 words
Apparatus for washing gases as set forth in claim 1 in which said ring is formed with sloping inner surface to provide a venturi throat.
Claim 4
Dependent Claim
35 words
Apparatus as set forth in claim 1 in which the recess in said ring is formed by upper and lower curved surfaces forming a smooth contour for deflecting and reversing the direction of the spray.
Claim 5
Dependent Claim
32 words
Apparatus as set forth in claim 1 in which said ring is formed with upper and lower inwardly sloping surfaces spaced by said shoulder beneath which the spray extends and is redirected.
Claim 6
Dependent Claim
28 words
Apparatus as set forth in claim 1 in which the lower surface of said recess is upwardly inclined to impart an upward trajectory to the inwardly deflected spray.
Claim 7
Dependent Claim
44 words
Apparatus as set forth in claim 1 in which said ring is in the form of a cone, having a portion of its outer surface spaced inwardly from said duct to form an annular space for imparting turbulence to the gas in said stream.
Claim 8
Dependent Claim
20 words
Apparatus as set forth in claim 1 in which a venturi ring is disposed in said duct adjacent said ring.
Claim 9
Independent Claim
104 words
The method of cleaning gases which comprises passing such gases in a stream through a duct and passing a radially directed liquid spray from an axial nozzle through the gas stream in said duct in a repeated zigzag path by deflecting the spray particles between an outer surface provided with an annular recess, said recess being defined by an upper radially extending shoulder defining an upper surface and a lower radially extending surface, said recess being positioned to receive and deflect said spray with a minimum loss of kinetic energy, and an inner surface spaced to form an annular passage for said gas stream.
References Cited (Backward Citations)
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Cited
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Cited
US3445093A
Cited
US3584440A
Cited
US3638925A
Cited
US3737106A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |