US4356131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circulating device for liquids containing long-chain molecules
Assignee: ATARA Corp A CORP OF PROVINCE OF QUEBEC CANADA
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Filing: 1981-01-29
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Granted: 1982-10-26
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Expires: 2001-01-29
Abstract
Abstract An apparatus is provided for causing circulation within a large body of fluid, especially a fluid comprising long molecules, such as polymer chains. The apparatus comprises a so-called "large bubble" generator, which generates a gas bubble to push the liquid through a series of bent pipes and ultimately into 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. In order to prevent "motoring", a sharp-edged baffle plate is provided at a bend in the pipes between the gas-accumulator and the stackpipe. The baffle plate serves to prevent continuing flow of the fluid created by the presence of the long chain molecules.
Inventors
- 👤 Peter Lipert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:24
CPC Classifications
C; C02; C02F; C02F3/00; C02F3/02; C02F3/12; C02F3/20; B; B01; B01F; B01F33/00; B01F33/40; B01F33/405; B01F33/4051; B01F33/40511; Y; Y02; Y02W; Y02W10/00; Y02W10/10; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3115; Y10T137/3127
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
169 words
In a device for creating circulation within a body of liquid, the liquid including long-chain molecules, 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, also designed to be wholly submerged within the liquid, and for delivering bubbles to said stackpipe, the generator means comprising a gas accumulating chamber having an opening in the lower part thereof, and curved piping, defining a siphon, connecting the gas accumulator chamber to the stackpipe, and means for delivering gas under pressure into the accumulator chamber; the improvement comprising: the presence of a sharp-edged baffle plate at a bend in the pipe between the gas accumulator chamber and the stackpipe, the sharp-edged baffle plate extending from the inner portion of the curve in the bent pipe towards the centerline of the pipe, so as to block at least about 10% of the cross-sectional flow area of the pipe.
Claim 2
Dependent Claim
169 words
In a device for creating circulation within a body of liquid, the liquid including long-chain molecules, 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, also designed to be wholly submerged within the liquid, and for delivering bubbles to said stackpipe, the generator means comprising a gas accumulating chamber having an opening in the lower part thereof, and curved piping, defining a siphon, connecting the gas accumulator chamber to the stackpipe, and means for delivering gas under pressure into the accumulator chamber; the improvement comprising: the presence of a sharp-edged baffle plate at a bend in the pipe between the gas accumulator chamber and the stackpipe, the sharp-edged baffle plate extending from the inner portion of the curve in the bent pipe towards the centerline of the pipe, so as to block at least about 10% of the cross-sectional flow area of the pipe.
Claim 3
Dependent Claim
25 words
The device of claim 1 wherein the sharp edge of the baffle forms a substantially straight line chord of the inner circumference of the pipe.
Claim 4
Dependent Claim
19 words
The apparatus of claim 2, wherein the baffle plate blocks not more than about 50% of the flow area.
Claim 5
Dependent Claim
49 words
The apparatus of claim 1, wherein the baffle plate is in the shape of an annular disk, the sharp edge forming a substantially central opening and wherein the baffle plate blocks at least about 10% but not more than about 50% of the flow area of the pipe cross-section.
Claim 6
Dependent Claim
21 words
The apparatus of claim 4, wherein the central opening is circular and substantially concentric to the interior cross-section of the pipe.
Claim 7
Dependent Claim
33 words
The device of claim 1, wherein the sharp edge defines a series of intersecting substantially straight lines, the intersection being located substantially at the inner apex of the curve of the bent pipe.
Claim 8
Dependent Claim
25 words
The device of claim 1 or 2 or 4, wherein the baffle plate is beveled at its edge on the downstream surface of the plate.
Claim 9
Dependent Claim
127 words
A large bubble generator designed to be connected to a substantially vertically extending pipe and to be wholly submerged within a liquid, the large bubble generator comprising a gas accumulator chamber designed to be connected to a source of gas pressure, and an inverted siphon comprising a pipe having a series of bends therein, one end of the siphon being connected to the upper portion of the gas accumulator chamber, the second end designed to be connected to a substantially vertically extending pipe; the improvement comprising: a sharp-edged baffle plate secured to the internal circumference of the pipe substantially at the interior apex of a bend in the inverted siphon pipe, the baffle plate blocking at least about 10% of the cross-sectional flow area of the pipe.
Claim 10
Dependent Claim
127 words
A large bubble generator designed to be connected to a substantially vertically extending pipe and to be wholly submerged within a liquid, the large bubble generator comprising a gas accumulator chamber designed to be connected to a source of gas pressure, and an inverted siphon comprising a pipe having a series of bends therein, one end of the siphon being connected to the upper portion of the gas accumulator chamber, the second end designed to be connected to a substantially vertically extending pipe; the improvement comprising: a sharp-edged baffle plate secured to the internal circumference of the pipe substantially at the interior apex of a bend in the inverted siphon pipe, the baffle plate blocking at least about 10% of the cross-sectional flow area of the pipe.
Claim 11
Dependent Claim
20 words
The large bubble gas generator of claim 8, comprising a sharp-edged baffle plate at each bend in the siphon pipe.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |