US4293506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid circulating device
Assignee: Atara Corp
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Filing: 1979-07-05
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Granted: 1981-10-06
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Expires: 1999-07-05
Abstract
Abstract An apparatus is provided for causing circulation within a large body of fluid. The apparatus comprises a "large bubble" generator exposed to the pressure of the fluid at a predetermined level, a vertically extending standpipe, preferably of adjustable height, an inverted siphon between the standpipe and the generator, and a transverse connection between the standpipe and a vertically extending stackpipe. Upon generating a large gas bubble into the stackpipe, the gas acts as a piston within the stackpipe, pushing liquid upwardly therethrough, and thereby drawing liquid into the bottom. The continuous passage of such large bubbles through the stackpipe results in a current flow circulation through the large standing body of liquid. The advantage of the present type of large bubble generator, is that the generator can be placed at a position beneath the surface of the standing body of liquid a distance limited only by the rapidity at which a large bubble can be generated, as it is desirable that in steady state operation, a large bubble enter the stackpipe before the preceding large bubble has exited from the top.
Inventors
- 👤 Peter Lipert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:43
CPC Classifications
E; E03; E03F; E03F5/00; E03F5/26; B; B01; B01F; B01F33/00; B01F33/40; B01F33/405; B01F33/4051; B01F33/40511; C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; C02F3/22; C02F3/223; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
148 words
A device for creating circulation within a body of liquid, the device comprising a substantially vertically extending stackpipe means designed to be wholly submerged within the liquid, the stackpipe having an upper discharge opening and a lower inlet opening; a large-bubble generator means located adjacent the stackpipe and comprising a gas-accumulator chamber having a peripheral wall, a top wall, and an opening at the chamber bottom; a substantially vertically extending standpipe adjacent the accumulator chamber and the stackpipe; an inverted siphon defining fluid flow connecting means between the upper portion of the accumulator chamber and the standpipe; means for delivering gas under pressure into the accumulator chamber; transverse gas flow conduit means between the upper end of the standpipe and the stackpipe, the transverse conduit connecting through the peripheral wall of the stackpipe; and secondary liquid inlet means into the transverse conduit between the standpipe and the stackpipe.
Claim 2
Independent Claim
148 words
A device for creating circulation within a body of liquid, the device comprising a substantially vertically extending stackpipe means designed to be wholly submerged within the liquid, the stackpipe having an upper discharge opening and a lower inlet opening; a large-bubble generator means located adjacent the stackpipe and comprising a gas-accumulator chamber having a peripheral wall, a top wall, and an opening at the chamber bottom; a substantially vertically extending standpipe adjacent the accumulator chamber and the stackpipe; an inverted siphon defining fluid flow connecting means between the upper portion of the accumulator chamber and the standpipe; means for delivering gas under pressure into the accumulator chamber; transverse gas flow conduit means between the upper end of the standpipe and the stackpipe, the transverse conduit connecting through the peripheral wall of the stackpipe; and secondary liquid inlet means into the transverse conduit between the standpipe and the stackpipe.
Claim 3
Dependent Claim
42 words
The device of claim 1 wherein the transverse conduit connects at a first end into the stackpipe at a position located below the top end of the stackpipe a distance of at least about four times the diameter of the stackpipe (4·D).
Claim 4
Dependent Claim
66 words
The device of claim 2 wherein the second end of the transverse conduit comprises a divergent opening, having a maximum diameter greater than that of the upper end of the standpipe, the upper end of the standpipe opening into the divergent opening and defining an annular clearance between the standpipe upper end and the divergent opening, providing for the secondary inlet of liquid into the stackpipe.
Claim 5
Dependent Claim
31 words
The device of claim 2 wherein the position is located above the bottom end of the stackpipe a distance of at least about three times the diameter of the stackpipe (3·D).
Claim 6
Dependent Claim
14 words
The device of claim 4 wherein the lower end of the standpipe is closed.
Claim 7
Dependent Claim
14 words
The device of claim 1 wherein the lower end of the standpipe is open.
Claim 8
Dependent Claim
15 words
The device of claim 6 wherein the lower standpipe opening is a retricted orifice opening.
Claim 9
Dependent Claim
48 words
The device of claim 6 wherein the ratio of the area of the secondary inlet opening-to-the area of the open lower end of the stackpipe is designed to provide for not more than about 10 percent of the liquid flow to enter the stackpipe through the transverse conduit.
Claim 10
Dependent Claim
45 words
The device of claim 1 wherein the secondary inlet to the transverse conduit is through a peripheral wall of such transverse conduit, adjacent to the peripheral wall of the stackpipe and is open to the liquid in which the device is designed to be submerged.
Claim 11
Dependent Claim
17 words
The device of claim 1, comprising first adjusting means to adjust the vertical length of the standpipe.
Claim 12
Dependent Claim
18 words
The device of claim 10, wherein the first adjusting means comprises a sleeve slidably secured to the standpipe.
Claim 13
Dependent Claim
17 words
The device of claim 1 comprising second adjusting means for adjusting the volume of the accumulator tank.
Claim 14
Independent Claim
206 words
A system for treating sewage and the like in a liquid body, comprising a tank for the liquid sewage; a substantially vertically extending stackpipe positioned within said tank; the stackpipe having a lower inlet opening and an upper discharge opening below a predetermined level within said tank; a large-bubble generator means located within the tank adjacent the stackpipe; and comprising a gas accumulator chamber having a peripheral wall and a top wall, the bottom of the chamber being substantially open; a substantially vertically extending standpipe adjacent the accumulator chamber and the stackpipe within the tank; an inverted siphon defining fluid flow connecting means between the upper portion of the accumulator chamber and the standpipe; pressure means for delivering gas under pressure into the accumulator chamber; transverse gas flow conduit means between the upper end of the standpipe and stackpipe; the transverse conduit connecting through the peripheral wall of the stackpipe at one end of the conduit; and secondary liquid inlet means into the transverse conduit between the standpipe and the stackpipe, whereby the generation of a large-bubble of gas passes from the accumulator chamber up through the stackpipe, acting as a piston to generate a current flow through a large body of liquid within the tank.
Claim 15
Independent Claim
206 words
A system for treating sewage and the like in a liquid body, comprising a tank for the liquid sewage; a substantially vertically extending stackpipe positioned within said tank; the stackpipe having a lower inlet opening and an upper discharge opening below a predetermined level within said tank; a large-bubble generator means located within the tank adjacent the stackpipe; and comprising a gas accumulator chamber having a peripheral wall and a top wall, the bottom of the chamber being substantially open; a substantially vertically extending standpipe adjacent the accumulator chamber and the stackpipe within the tank; an inverted siphon defining fluid flow connecting means between the upper portion of the accumulator chamber and the standpipe; pressure means for delivering gas under pressure into the accumulator chamber; transverse gas flow conduit means between the upper end of the standpipe and stackpipe; the transverse conduit connecting through the peripheral wall of the stackpipe at one end of the conduit; and secondary liquid inlet means into the transverse conduit between the standpipe and the stackpipe, whereby the generation of a large-bubble of gas passes from the accumulator chamber up through the stackpipe, acting as a piston to generate a current flow through a large body of liquid within the tank.
Claim 16
Dependent Claim
48 words
The system of claim 13 wherein the bottom end of the stackpipe is located a distance of between about 3 inches and about 12 inches above the bottom of the tank, sufficiently above the bottom to permit the flow of liquid from the tank up through the stackpipe.
Claim 17
Dependent Claim
38 words
The system of claim 13 wherein the top end of the stackpipe is located a distance of at least about three times the diameter (D) of the stackpipe (3·D) below the surface of any liquid in the tank.
Claim 18
Dependent Claim
17 words
The system of claim 13, comprising first adjoining means to adjust the vertical length of the standpipe.
Claim 19
Dependent Claim
18 words
The system of claim 16, wherein the first adjusting means comprises a sleeve slidably secured to the standpipe.
Claim 20
Dependent Claim
17 words
The system of claim 13, comprising second adjusting means for adjusting the volume of the accumulator tank.
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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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |