Patent US3852384A successfully refreshed from Google Patents.
US3852384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid treatment apparatus
Assignee: Environmental Technology Corp
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Filing: 1972-07-21
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Granted: 1974-12-03
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Expires: 1992-07-21
Abstract
Abstract An apparatus for the treatment of liquid in a ponding area by gas is provided wherein an open-ended elongated tube is vertically positioned with its lower end above a gas bubble generator so that gas bubbles are entrained in the liquid and carry the liquid and bubbles up through the tube. A plurality of orifices are provided in the tube walls to draw in liquid from the side portions of the tube at a point above the lower end of the tube to increase the efficiency of the aeration. In the preferred form a helical path is provided within the tube to increase further the time of exposure of the gas to the liquid being treated and to provide a shearing action to minimize bubble size. Also disclosed is an automatically adjustable length for the tube to compensate for the rise and fall of pond depth.
Inventors
- 👤 J Bearden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:32
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/22; C02F3/223; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/231; B01F23/23105; B01F23/2311; B01F23/23115; B01F23/231152; B01F23/231154; B01F23/232; B01F23/2323; B01F23/23231; B01F23/232311; B01F35/00; B01F35/30; B01F35/32; B01F35/32005; B01F35/3203; C02F3/20; B01F33/00; B01F33/50; B01F33/503; B01F35/32015; Y; Y02; Y02W; Y02W10/00; Y02W10/10
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
223 words
In an apparatus for aerating a liquid in a treatment pond comprising, a submerged vertically positioned open ended elongated tube, said tube having a plurality of smooth openings in the wall thereof and spaced along the extent of the wall intermediate the ends thereof, said openings providing for liquid communication between the interior of said tube and the main body of liquid in the pond; a helical baffle positioned longitudinally in the interior of said tube to provide at least two tortuous passages therein with said openings in said wall of the tube being positioned to provide communication between the exterior of the tube and each of said passages; and a gas bubble generator disposed beneath the lower end of said tube and adapted to be anchored with said tube on the bottom of said pond, said generator discharging bubbles into the liquid of said pond and being constructed and arranged to discharge streams of bubbles in generally opposed directions so as to produce a shearing action therebetween as the bubbles engage one another and to produce an upward flow of liquid and bubbles through the interior of said tube and into the tortuous passages of the baffle therein, said upward flow of liquid and bubbles inducing additional flow of liquid from the pond through the openings in the wall of said tube.
Claim 2
Dependent Claim
223 words
In an apparatus for aerating a liquid in a treatment pond comprising, a submerged vertically positioned open ended elongated tube, said tube having a plurality of smooth openings in the wall thereof and spaced along the extent of the wall intermediate the ends thereof, said openings providing for liquid communication between the interior of said tube and the main body of liquid in the pond; a helical baffle positioned longitudinally in the interior of said tube to provide at least two tortuous passages therein with said openings in said wall of the tube being positioned to provide communication between the exterior of the tube and each of said passages; and a gas bubble generator disposed beneath the lower end of said tube and adapted to be anchored with said tube on the bottom of said pond, said generator discharging bubbles into the liquid of said pond and being constructed and arranged to discharge streams of bubbles in generally opposed directions so as to produce a shearing action therebetween as the bubbles engage one another and to produce an upward flow of liquid and bubbles through the interior of said tube and into the tortuous passages of the baffle therein, said upward flow of liquid and bubbles inducing additional flow of liquid from the pond through the openings in the wall of said tube.
Claim 3
Dependent Claim
32 words
An apparatus in accordance with claim 1 wherein the lower end of said tube has a flared collar region for collecting bubbles and directing same into the interior regions of said tube.
Claim 4
Dependent Claim
28 words
Apparatus in accordance with claim 1 wherein said bubble generator conduit means includes an annular ring and said orifices are on the interior side walls of said ring.
Claim 5
Dependent Claim
40 words
Apparatus in accordance with claim 1 wherein said bubble generator includes two spaced parallel conduits and said orifices are spaced along the side walls of said conduits with pairs of orifices cooperating to produce a swirling and shearing action therebetween.
Claim 6
Dependent Claim
171 words
In an apparatus for aeration of liquid in a treating pond comprising, an open ended submerged vertically positioned elongated tube assembly including first and second telescoping tube members, flotation means connected to the upper end of the first tube member for maintaining a predetermined distance between the surface of the ponD and the upper end of said first tube member, a gas bubble generator disposed beneath the lower end of said second tube member and having orifices therein to discharge bubbles in a direction transverse to the extent of said tube assembly and into the liquid of the pond whereby to produce the shearing of said bubbles and an upward flow of liquid and bubbles through the interior of said tube assembly, said flotation means for maintaining the predetermined distance between the upper end of said first tube member and the surface of said pond including a float member and linkage means joined to said float means and to said first tube member of a length to maintain said predetermined distance.
Claim 7
Dependent Claim
171 words
In an apparatus for aeration of liquid in a treating pond comprising, an open ended submerged vertically positioned elongated tube assembly including first and second telescoping tube members, flotation means connected to the upper end of the first tube member for maintaining a predetermined distance between the surface of the ponD and the upper end of said first tube member, a gas bubble generator disposed beneath the lower end of said second tube member and having orifices therein to discharge bubbles in a direction transverse to the extent of said tube assembly and into the liquid of the pond whereby to produce the shearing of said bubbles and an upward flow of liquid and bubbles through the interior of said tube assembly, said flotation means for maintaining the predetermined distance between the upper end of said first tube member and the surface of said pond including a float member and linkage means joined to said float means and to said first tube member of a length to maintain said predetermined distance.
Claim 8
Dependent Claim
36 words
Apparatus in accordance with claim 5 wherein at least one of said tube members has a helical baffle extending longitudinally of the interior of said tube to define at least two tortuous passages through said tube.
Claim 9
Dependent Claim
59 words
Apparatus in accordance with claim 5 wherein the first of said tube members has a helical baffle member mounted to the inner walls and extending therethrough beyond one end thereof, the second of said tubes telescoping around the portion of said helical member extending beyond said first tube member and at least a portion of said first tube member.
Claim 10
Dependent Claim
34 words
Apparatus in accordance with claim 7 wherein the outer diameter of said helical baffle member extending beyond said first tube member has a diameter corresponding to the inner diameter of said second tube member.
Claim 11
Dependent Claim
49 words
Apparatus in accordance with claim 5 wherein each of said tube members defines a plurality of openings in the wall portions thereof intermediate the ends thereof, said openings providing a liquid communicating means between the interior of said tube members and the main body of liquid in a pond.
Claim 12
Dependent Claim
60 words
The apparatus in accord with claim 5 in which each of said tube members have helical baffle members mounted on the inner walls thereof, oen of which baffle member is hollow to receive the baffle member of the other tube member and with the tube members and the baffle members therein being fitted together and movable in a telescopic relationship.
Claim 13
Dependent Claim
26 words
The apparatus in accordance with claim 5 and including means positioned in part on each of said tube members to prevent separation of said tube assembly.
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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) | 1977-12-02 | 1978-06-03 | 1978-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-02 | 1982-06-03 | 1982-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-02 | 1986-06-03 | 1986-12-03 | $7700.00 | Window Closed / Lapsed |