US3849310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for separating particles from a liquid
Assignee: GRENOBLOISE ETUDE APPL
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Filing: 1972-01-12
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Granted: 1974-11-19
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Expires: 1992-01-12
Abstract
Abstract Method and apparatus for the separation of particles from a liquid, comprising a basin with a central feed of the mixture of liquid and particles, the outflow being directed outwardly and horizontally thereby creating a centrifugal flow towards the periphery of the basin, upon which flow a velocity component in tangential direction is imparted thus producing a horizontal vortex field.
Inventors
- 👤 E Condolios
- 👤 Essen U Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:35
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/0217; B01D17/04; B01D17/047; B01D21/00; B01D21/0039; B01D21/0042; B01D21/02; B01D21/24; B01D21/2405; B01D21/2416; B01D21/2427; B01D21/245; B01D21/26; B01D21/265; B01D21/30; B01D21/34
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
221 words
An apparatus for separating particles from a liquid, comprising a basin which from top to bottom is composed of four parts provided on top of one another; a cylindrical upper front part forming an overflow edge and surrounded by a discharge gutter; a downwardly diverging second part; a cylindrical third part having a cylindrical section which is greater in diameter than that of said upper part, in which a screen is accommodated dividing the third pArt into a portion over and a portion under the screen, the solids being able to pass through perforations of the screen, the latter having openings with enlarged diameter along its periphery, and a lower part composed of a plurality of funnels, each funnel constituting a collecting tank and having a discharge outlet for particles separated from said liquid: at least one conduit being provided for introducing the mixture to be treated, said conduit vertically extending towards the center of the third part in a zone lying below the screen and to a certain distance above a horizontal deflector, means associated with the discharge end of said at least one conduit for discharging the mixture into the basin centrifugally along a horizontal plane, while further at least one passage is provided for the discharge of the fraction, sedimented at the lower end of each outlet funnel.
Claim 2
Independent Claim
221 words
An apparatus for separating particles from a liquid, comprising a basin which from top to bottom is composed of four parts provided on top of one another; a cylindrical upper front part forming an overflow edge and surrounded by a discharge gutter; a downwardly diverging second part; a cylindrical third part having a cylindrical section which is greater in diameter than that of said upper part, in which a screen is accommodated dividing the third pArt into a portion over and a portion under the screen, the solids being able to pass through perforations of the screen, the latter having openings with enlarged diameter along its periphery, and a lower part composed of a plurality of funnels, each funnel constituting a collecting tank and having a discharge outlet for particles separated from said liquid: at least one conduit being provided for introducing the mixture to be treated, said conduit vertically extending towards the center of the third part in a zone lying below the screen and to a certain distance above a horizontal deflector, means associated with the discharge end of said at least one conduit for discharging the mixture into the basin centrifugally along a horizontal plane, while further at least one passage is provided for the discharge of the fraction, sedimented at the lower end of each outlet funnel.
Claim 3
Dependent Claim
44 words
An apparatus according to claim 1, in which a screen is accomodated in the second part of the basin said screen forming a downwardly converging zone with a larger apex angle, the axis of the cone coinciding with the axis of the cylindrical basin.
Claim 4
Dependent Claim
72 words
An apparatus according to claim 1, in which the passages on the underside of each outlet funnel open into a collecting space provided thereunder, a central shaft or tube being provided, reaching through the entire basin into the collecting space, the conduit for the introduction of the mixture to be treated being formed as an annular pipe surrounding the upper portion of the shaft, the deflector also being provided around the shaft.
Claim 5
Dependent Claim
55 words
An apparatus according to claim 1, in which the horizontal deflector delimits two regions on either side, each region consisting of a free central space and a surrounding zone provided with vanes, the supply conduit for the mixture extending towards the upper region, a pipe for clean liquid extending from below to the lower region.
Claim 6
Dependent Claim
17 words
An apparatus according to claim 4, in which the deflector with the vanes is mounted for rotation.
Claim 7
Dependent Claim
59 words
An apparatus to claim 1, in which the screen in the third part of the basin is delimited in the center by a tubular sleeve surrounding the feed pipe for the mixture to be treated, so that a passage is formed between this sleeve and the aforementioned pipe, which passage open into the free central space above the deflector.
Claim 8
Dependent Claim
48 words
An apparatus according to claim 1, in which the screen in the third part is suspended by a number of radial tubes forming the connection between the central feed of the mixture to be treated and the entering zone of this mixture at the periphery of the basin.
Claim 9
Dependent Claim
48 words
An apparatus according to claim 2, in which the bottom of the gutter is perforated, a second bottom being provided in the gutter at a slight angle with the horizontal, whilst a discharge pipe is provided for a light liquid in the highest region of the second bottom.
Claim 10
Dependent Claim
16 words
A floating craft or pontoon, comprising an apparatus according to claim 1 mounted on said craft.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |