US3799353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous centrifuge
Assignee: Individual
•
Filing: 1972-10-13
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Granted: 1974-03-26
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Expires: 1992-10-13
Abstract
Abstract A continuous centrifuge for separating liquid and solid phases of a suspension has a centrifuge basket rotatable about an upright axis and having an upper open end, and a perforate liner in the basket conically diverging towards the upper open end. An annular baffle is mounted adjacent the upper open end and defines therewith a radially extending annular outlet gap through which retained solid phase can pass in radially outward direction under centrifugal force. An annular flow-regulating member is mounted on and rotatable with the basket and has a cylindrical surface juxtaposed with spacing from the outer end of the annular gap so that centrifugally ejected solid phase will contact this surface. The flow regulating member is mounted on the basket with slight freedom of axial movement relative thereto.
Inventors
- 👤 K Pause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:20
CPC Classifications
B; B04; B04B; B04B3/00
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
240 words
In a continuous centrifuge for separating the liquid and solid phases of a suspension, particularly in a sugar centrifuge, a combination comprising a centrifuge basket mounted for rotation about an upright axis and having an inner circumferential surface which conically diverges in upward direction to an upper open outlet end of the basket; a perforate liner in said basket and overlying said inner surface; admitting means for admitting a suspension into said basket for centrifugal separation of the liquid and solid phases of such suspension, and retention of the latter phase as a flowable mass; an annular baffle mounted adjacent said open outlet end and defining therewith a radially extending annular outlet gap communicating with the interior and having an outer end communicating with the exterior of said basket, for centrifugal ejection of the flowable mass from the basket; an annular flow-regulating member rotatable with said basket for regulating the outflow of said mass through said outlet gap, said member having a surface concentrically surrounding said baffle at a predetermined fixed radial distance from said outer end of said outlet gap and extending axially beyond said outer end by a distance greater than the slope angle capable of being formed by said mass when centrifugally ejected through said outlet gap and onto said surface of said member; and mounting means mounting said member on said basket for rotation therewith and for limited axial movement relative thereto and to said baffle.
Claim 2
Dependent Claim
240 words
In a continuous centrifuge for separating the liquid and solid phases of a suspension, particularly in a sugar centrifuge, a combination comprising a centrifuge basket mounted for rotation about an upright axis and having an inner circumferential surface which conically diverges in upward direction to an upper open outlet end of the basket; a perforate liner in said basket and overlying said inner surface; admitting means for admitting a suspension into said basket for centrifugal separation of the liquid and solid phases of such suspension, and retention of the latter phase as a flowable mass; an annular baffle mounted adjacent said open outlet end and defining therewith a radially extending annular outlet gap communicating with the interior and having an outer end communicating with the exterior of said basket, for centrifugal ejection of the flowable mass from the basket; an annular flow-regulating member rotatable with said basket for regulating the outflow of said mass through said outlet gap, said member having a surface concentrically surrounding said baffle at a predetermined fixed radial distance from said outer end of said outlet gap and extending axially beyond said outer end by a distance greater than the slope angle capable of being formed by said mass when centrifugally ejected through said outlet gap and onto said surface of said member; and mounting means mounting said member on said basket for rotation therewith and for limited axial movement relative thereto and to said baffle.
Claim 3
Dependent Claim
43 words
A combination as defined in claim 1, wherein the width of said gap and the distance of said member from said outer end of said gap, slightly exceed the diameter from an opening through which said mass is just capable of freely flowing.
Claim 4
Dependent Claim
51 words
A combination as defined in claim 1, wherein the width of said gap exceeds by substantially 10 percent The diameter of an opening through which said mass is just capable of freely flowing, and wherein the distance of said member from said outer end of said gap slightly exceeds said diameter.
Claim 5
Dependent Claim
27 words
A combination as defined in claim 1, said baffle having a radially inner portion of conical taper which extends through said open outlet end into said basket.
Claim 6
Dependent Claim
36 words
A combination as defined in claim 1, wherein said surface of said member diverges conically in axial direction of said basket at an angle which is smaller than the angle of repose of said flowable mass.
Claim 7
Dependent Claim
21 words
A combination as defined in claim 5, wherein said surface diverges conically in the direction of ejection of said flowable mass.
Claim 8
Dependent Claim
65 words
A combination as defined in claim 6, said member including an annular wall portion provided with said surface and having two axial ends one of which is open for ejection of said flowable mass, and a transverse wall portion provided on said annular wall portion in the region of the other axial end thereof and extending transversely of the axis of rotation of said basket.
Claim 9
Dependent Claim
38 words
A combination as defined in claim 7, said upper open outlet end of said basket having a first outer diameter, and wherein said annular baffle has a second outer diameter which is greater than said first outer diameter.
Claim 10
Dependent Claim
84 words
A combination as defined in claim 7, said annular baffle having an end face facing axially away from said basket and being provided with a raised abutment, said transverse wall portion overlying said end face at least in part and normally contacting said abutment, and at least said annular wall portion being of magnetizable material; and further comprising electromagnet means mounted adjacent to said transverse wall portion at one circumferential locus of said basket slightly spaced from said transverse wall portion along said axis.
Claim 11
Dependent Claim
39 words
A combination as defined in claim 9, wherein said mounting means comprises at least three mounting units distributed circumferentially about said upright axis and each comprising spring means permanently tending to bias said transverse wall portion towards said abutment.
Claim 12
Dependent Claim
35 words
A combination as defined in claim 10, and further comprising limiting means intermediate said transverse wall portion and said electromagnet means so as to limit axial displacement of the former in direction toward the latter.
Claim 13
Dependent Claim
29 words
A combination as defined in claim 1, further comprising a plurality of equi-angularly spaced profiled portions mounting said annular baffle on at least one of said basket and liner.
Claim 14
Dependent Claim
73 words
A combination as defined in claim 1, said perforate liner having an interior circumferential surface facing inwardly of said liner and away from said inner surface; and wherein at least one of said circumferential surfaces diverges from the region of the lower end of said basket to substantially midway between said ends at a smaller first angle, and from substantially midway of said basket to said upper end at a larger second angle.
Claim 15
Dependent Claim
25 words
A combination as defined in claim 13, wherein said first and second angles are both greater than the angle of slide of said flowable mass.
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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |