Patent US3733788A successfully refreshed from Google Patents.
US3733788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing particulate and gaseous pollutants from stack smoke
Assignee: Individual
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Filing: 1972-05-10
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Granted: 1973-05-22
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Expires: 1992-05-10
Abstract
Abstract Apparatus for cleaning a stack smoke by removing particulate and gaseous pollutants therefrom, having a conduit in the stack for conducting the stack smoke therethrough and a conical deflector spaced above and across the top of the conduit to provide an annular passage for the stack smoke and a nozzle to deliver a curtain of water transversely to the direction of the deflected stack smoke to remove pollutants, the water then flowing to a collection tank and outlet line for discharge from the stack.
Inventors
- 👤 W Crowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:06
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/06
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
244 words
An apparatus for cleaning stack smoke by removing particulate and gaseous pollutants therefrom, comprising, a stack, an elongated conduit vertically disposed in said stack, means to direct smoke to the bottom of said vertically disposed conduit, a deflector spacedly housed above the top of said elongated conduit and extending outwardly across the top of the elongated conduit and terminating inwardly of the inner surface of said stack to form an annular passage for the stack smoke, a nozzle mounted horizontally and spacedly disposed within the stack at a level above said deflector and below the top of said stack and at one side of the interior of the stack, said nozzle being formed with an elongated disposed discharge orifice means, the elongated orifice dimension of said discharge orifice means extending horizontally and being equal to about the dimension across the inside of said stack at said level, said orifice means including means to deliver a continuous curtain of liquid to transversely contact the deflected smoke and then impinge on a portion of the inner side wall of the stack opposing said nozzle, means to collect said liquid, comprising an annular trough disposed between the inner surface of said stack and the outer surface of said elongated conduit and means connecting said trough to said stack and to said conduit to cause said liquid to deposit in said trough, and pipe means integrally formed and communicating with said annular trough to discharge said collected liquid.
Claim 2
Independent Claim
244 words
An apparatus for cleaning stack smoke by removing particulate and gaseous pollutants therefrom, comprising, a stack, an elongated conduit vertically disposed in said stack, means to direct smoke to the bottom of said vertically disposed conduit, a deflector spacedly housed above the top of said elongated conduit and extending outwardly across the top of the elongated conduit and terminating inwardly of the inner surface of said stack to form an annular passage for the stack smoke, a nozzle mounted horizontally and spacedly disposed within the stack at a level above said deflector and below the top of said stack and at one side of the interior of the stack, said nozzle being formed with an elongated disposed discharge orifice means, the elongated orifice dimension of said discharge orifice means extending horizontally and being equal to about the dimension across the inside of said stack at said level, said orifice means including means to deliver a continuous curtain of liquid to transversely contact the deflected smoke and then impinge on a portion of the inner side wall of the stack opposing said nozzle, means to collect said liquid, comprising an annular trough disposed between the inner surface of said stack and the outer surface of said elongated conduit and means connecting said trough to said stack and to said conduit to cause said liquid to deposit in said trough, and pipe means integrally formed and communicating with said annular trough to discharge said collected liquid.
Claim 3
Dependent Claim
35 words
The apparatus of claim 1, wherein said means to direct said smoke to said elongated conduit is a downwardly, outwardly flared frusto-conical section integrally formed at and with the lower end of said elongated conduit.
Claim 4
Dependent Claim
16 words
The apparatus of claim 1, further comprising a filter for particulates to filter the discharged liquid.
Claim 5
Dependent Claim
20 words
The apparatus of claim 1, said nozzle being transversely disposed in said stack and covers about one-half of the stack.
Claim 6
Dependent Claim
40 words
The apparatus of claim 1, and means associatEd with said nozzle and transversely disposed in said stack to direct the stack smoke between said elongated horizontally disposed discharge orifice means of the nozzle and an opposite side of said stack.
Claim 7
Dependent Claim
37 words
The apparatus of claim 1, said stack being of circular transverse cross section and the horizontal dimension of said orifice means being about equal to the inside diameter of the stack at the level of said nozzle.
Claim 8
Dependent Claim
44 words
The combination of claim 1, said stack being circular in transverse cross-section, said nozzle being semi-circular in transverse cross-section, said discharge orifice means being diametrical and the semi-circular part of said nozzle contacting the interior of said stack at the level of the nozzle.
Claim 9
Dependent Claim
34 words
The combination of claim 1, the cross-sectional internal area of the smoke stack at the level of the nozzle, being substantially covered by nozzle and continuous curtain of liquid discharged from said orifice means.
Claim 10
Dependent Claim
12 words
The apparatus of claim 1 said orifice means comprising a continuous slot.
Claim 11
Dependent Claim
17 words
The combination of claim 9, said slot being no greater than about 0.5 inch in vertical dimension.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |