US3791108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow-accelerating nozzle for gas scrubber
Assignee: Gottfried Bischoff Bau Kompl Gasreinigungs und Wasserrueckkehlanlagen GmbH and Co KG
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Filing: 1972-03-16
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Granted: 1974-02-12
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Expires: 1992-03-16
Abstract
Abstract A washer for the scrubbing of flue gases contains one or more flow-accelerating nozzles with generally pear-shaped inserts vertically displaceable in a tubular housing to vary the width of an annular gap formed between the insert and the housing to give passage to a descending gas stream. The lower part of the housing is flared outwardly and provided with several spacedly nested, similarly flared sleeves forming therewith a plurality of annular exit channels around a central port accommodating a stem which supports the insert.
Inventors
- 👤 G Hausberg
- 👤 K Hegemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:21
CPC Classifications
B; B01; B01D; B01D47/00; B01D47/10; B01D47/06; C; C21; C21B; C21B7/00; C21B7/002; C21B2100/00; C21B2100/40; C21B2100/44; C21B2100/60; C21B2100/64; Y; Y10; Y10S; Y10S261/00; Y10S261/54; Y10S55/00; Y10S55/14
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
182 words
In an apparatus for cleaning high-pressure waste gases, including a wash tower with partition means dividing same into an upstream compartment and a downstream compartment, inlet means for waste gases communicating with said upstream compartment, spray means in said upstream compartment and outlet means for washed gas communicating with said downstream compartment, the combination therewith of at least one flow-accelerating nozzle in saId partition means forming a passage for said washed gas, said nozzle comprising: a tubular body centered on a substantially vertical axis, said body traversing said partition means and terminating in an open upper end and an open lower end on opposite sides of said partition means, said ends being separated by a constricted portion of said body; a downwardly tapering insert received with clearance in said body and defining an annular gap with said constricted portion, said body forming an outwardly flared skirt at said lower end beneath said gap; and a downwardly diverging sleeve in said lower end substantially paralleling said skirt and defining therewith an annular channel opening laterally outwardly toward the periphery of said lower compartment.
Claim 2
Dependent Claim
182 words
In an apparatus for cleaning high-pressure waste gases, including a wash tower with partition means dividing same into an upstream compartment and a downstream compartment, inlet means for waste gases communicating with said upstream compartment, spray means in said upstream compartment and outlet means for washed gas communicating with said downstream compartment, the combination therewith of at least one flow-accelerating nozzle in saId partition means forming a passage for said washed gas, said nozzle comprising: a tubular body centered on a substantially vertical axis, said body traversing said partition means and terminating in an open upper end and an open lower end on opposite sides of said partition means, said ends being separated by a constricted portion of said body; a downwardly tapering insert received with clearance in said body and defining an annular gap with said constricted portion, said body forming an outwardly flared skirt at said lower end beneath said gap; and a downwardly diverging sleeve in said lower end substantially paralleling said skirt and defining therewith an annular channel opening laterally outwardly toward the periphery of said lower compartment.
Claim 3
Dependent Claim
43 words
The combination defined in claim 1 wherein said lower compartment is provided with an exit port leading to said outlet means from a location near said partition means, said annular channel opening into said lower compartment below the level of said exit port.
Claim 4
Dependent Claim
26 words
The combination defined in claim 1, further comprising a second sleeve in said lower end substantially paralleling the first-mentioned sleeve and defining therewith another annular channel.
Claim 5
Dependent Claim
23 words
The combination defined in claim 3 wherein said sleeves have aligned central apertures for the downward passage of part of said washed gas.
Claim 6
Dependent Claim
23 words
The combination defined in claim 4 wherein said insert is provided with a downwardly extending stem passing with clearance through said central apertures.
Claim 7
Dependent Claim
28 words
The combination defined in claim 5 wherein said stem is provided with control means for raising and lowering said insert to vary the width of said annular gap.
References Cited (Backward Citations)
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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) | 1977-02-11 | 1977-08-13 | 1978-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-11 | 1981-08-13 | 1982-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-11 | 1985-08-13 | 1986-02-12 | $7700.00 | Window Closed / Lapsed |