US4259267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aeration apparatus by means of vortex action
Assignee: Individual
•
Filing: 1977-03-15
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Granted: 1981-03-31
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Expires: 1997-03-15
Abstract
Abstract An aeration apparatus, which entrains gas and circulates liquid mass. The apparatus consists of vertical tubes and a pumping device beneath the vertical tubes, all of which are constrained by a flow-confining barrel. The suction force of the pump draws down the liquid surface through the vertical tubes which induces a vortex action in each tube, and entrains gas into the center of the vortices from the gas body above the liquid surface. The entrained gas mixes with liquid and flows downward through the flow-confining barrel and is dispersed into the liquid of the tank.
Inventors
- 👤 Kenneth K. Wang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:03
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/1278; C02F3/1294; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2334; B01F23/23341; C02F3/20; C02F3/205; C02F3/207; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10S; Y10S261/00; Y10S261/75
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
213 words
Apparatus for promoting dissolution of gas in a liquid comprises flow confining means which is submerged in said liquid and substantially vertically disposed; there is at least one substantially vertically disposed tube, the said tube is enclosed in the flow confining means, the upper end of said tube is positioned a short distance below the surface of said liquid and the lower end of said tube is open, a transverse barrier is across said flow confining means for holding said tube and baffling the gaps between the outer wall of said tube and the inner wall of said flow confining means, thereby the only flow path to said flow confining means at the upper end is through said tube, a pumping means is disposed within said flow confining means and below said tube for producing a downward flow within said flow confining means through said tube, the downward action at said upper end of said tube generates a vortex therein and said gas is entrained in the center of said vortex and mixed with the flowing liquid in said tube, the gas-liquid mixture is drawn in said flow confining means by the action of said pump means and subsequently dispersed into said liquid body through the lower end of said flow confining means.
Claim 2
Dependent Claim
213 words
Apparatus for promoting dissolution of gas in a liquid comprises flow confining means which is submerged in said liquid and substantially vertically disposed; there is at least one substantially vertically disposed tube, the said tube is enclosed in the flow confining means, the upper end of said tube is positioned a short distance below the surface of said liquid and the lower end of said tube is open, a transverse barrier is across said flow confining means for holding said tube and baffling the gaps between the outer wall of said tube and the inner wall of said flow confining means, thereby the only flow path to said flow confining means at the upper end is through said tube, a pumping means is disposed within said flow confining means and below said tube for producing a downward flow within said flow confining means through said tube, the downward action at said upper end of said tube generates a vortex therein and said gas is entrained in the center of said vortex and mixed with the flowing liquid in said tube, the gas-liquid mixture is drawn in said flow confining means by the action of said pump means and subsequently dispersed into said liquid body through the lower end of said flow confining means.
Claim 3
Dependent Claim
17 words
The combination is in accordance with claim 1 wherein said apparatus comprises a plurality of said tubes.
Claim 4
Dependent Claim
28 words
The combination is in accordance with claim 1 wherein said pump means comprises at least one impeller, means for mounting said impeller, and means for rotating said impeller.
Claim 5
Dependent Claim
15 words
Apparatus as defined in claim 1 additionally comprises means for adjusting position of said tube.
Claim 6
Dependent Claim
17 words
The combination is in accordance with claim 1 wherein said liquid is contained in an open-top tank.
Claim 7
Dependent Claim
18 words
The combination is in accordance with claim 5 wherein said liquid is waste water, said gas is air.
Claim 8
Dependent Claim
17 words
The combination is in accordance with claim 1 wherein said liquid is contained in a closed-top tank.
Claim 9
Dependent Claim
19 words
The combination is in accordance with claim 6 wherein said liquid is waste water, said gas is oxygen-enriched gas.
References Cited (Backward Citations)
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US2130402A
Cited
GB548664A
Cited
US3643403A
Cited
US3846516A
Cited
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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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |