US3785489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cyclone separator with underflow diluter
Assignee: Celleco AB
•
Filing: 1971-07-14
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Granted: 1974-01-15
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Expires: 1991-07-14
Abstract
Abstract To dilute a heavy fraction separated in a cyclone separator, the latter is provided with a duct for supplying the diluent while maintaining it in rotation around the separator axis, the supply duct having a discharge orifice located at a radial distance from and within a circumferential wall surrounding the separated heavy fraction.
Inventors
- 👤 R Frykhult
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:45
CPC Classifications
B; B04; B04C; B04C5/00; B04C5/14; B04C5/18; D; D21; D21D; D21D5/00; D21D5/18; D21D5/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
122 words
In combination with a cyclone separator having an axis and forming a vortex chamber having an inlet for a suspension to be separated, said chamber also having outlets for a separated heavy fraction and for a separated lighter fraction, respectively, the separator including a circumferential wall adjacent said outlet for the separated heavy fraction and adjacent which said heavy fraction rotates in an annular body around said axis, means for supplying a diluent to dilute said separated heavy fraction and having a discharge orifice located at a radial distance from and within said circumferential wall, said means for supplying a diluent including means for rotating the diluent around said axis as the diluent discharges through said orifice and within said annular body.
Claim 2
Dependent Claim
122 words
In combination with a cyclone separator having an axis and forming a vortex chamber having an inlet for a suspension to be separated, said chamber also having outlets for a separated heavy fraction and for a separated lighter fraction, respectively, the separator including a circumferential wall adjacent said outlet for the separated heavy fraction and adjacent which said heavy fraction rotates in an annular body around said axis, means for supplying a diluent to dilute said separated heavy fraction and having a discharge orifice located at a radial distance from and within said circumferential wall, said means for supplying a diluent including means for rotating the diluent around said axis as the diluent discharges through said orifice and within said annular body.
Claim 3
Dependent Claim
15 words
The combination of claim 1, in which said discharge orifice is coaxial with the separator.
Claim 4
Dependent Claim
20 words
The combination of claim 2, in which said discharge orifice is located within said outlet for the separated heavy fraction.
Claim 5
Dependent Claim
37 words
The combination of claim 2, in which the separator also forms an outlet chamber located outside the vortex chamber and to which said separated heavy fraction outlet leads, said discharge orifice being located in said outlet chamber.
Claim 6
Dependent Claim
33 words
The combination of claim 4, comprising also an impingement plate located in said outlet chamber and having one side facing said vortex chamber, said discharge orifice opening through said side of the plate.
Claim 7
Dependent Claim
15 words
The combination of claim 2, in which said means for rotating the diluent includes vanes.
Claim 8
Dependent Claim
27 words
The combination of claim 2, in which said means for rotation the diluent includes means forming a cylindrical chamber and having a tangential inlet for the diluent.
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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |