US3721347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Purification device for removing heavy components from a suspension
Assignee: Pielkenrood Vinitex BV
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Filing: 1970-06-26
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Granted: 1973-03-20
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Expires: 1990-06-26
Abstract
Abstract A device for purifying a liquid, comprising a separator with corrugated plates or troughs, the longitudinal axis of which includes, in the operational posision, an angle with the horizontal plane, the lower end of which separator is immersed completely but only at a small depth in the liquid in a supply basin, the upper end of the separator being closed in an airtight manner and being connected to a suction means, which may maintain a liquid flow in the separator, the liquid being taken from the surface of the liquid in the basin where the sediment concentration is low, and the sediment precipitated in the separator is turned to the basin separated from the liquid entering this separator.
Inventors
- 👤 J Pielkenrood
- 👤 W Ambrosius
- 👤 W Kooistra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:24
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/0039; B01D21/0045; B01D21/02; B01D21/24; B01D21/2405; B01D21/2427; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/926
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
243 words
An apparatus for separating heavier components from a mixture having at least one substance suspended in a liquid comprising a supply basin through which the mixture to be treated is circulated; a separator assembly having a plurality of parallel, elongated flow passages through which at least a portion of said mixture is flowed to separate heavier components therefrom; means for positioning said separator assembly in the supply basin so that the longitudinal axis of said flow passages is inclined with respect to a horizontal plane and only the lower portion of said separator assembly corresponding to the inlet of said flow passages is below the surface of said mixture in the supply basin with the upper end of said separator assembly corresponding to the outlet of said flow passages being above the inlet end; closure means for closing the outlet end of said separator assembly in a substantially air-tight manner; suction means in communication with the closure means for establishing and maintaining flow of said mixture upwardly through said flow passages, the heavier components separating from said mixture in the flow passages and gravitating towards said basin through the inlet end of said separator assembly and the separated liquid flowing out of said outlet end; and means for rapidly increasing the pressure in the outlet end of said separator assembly so that the upward flow of said mixture through said flow passages is interrupted and is reversed to flow back into said basIn.
Claim 2
Independent Claim
243 words
An apparatus for separating heavier components from a mixture having at least one substance suspended in a liquid comprising a supply basin through which the mixture to be treated is circulated; a separator assembly having a plurality of parallel, elongated flow passages through which at least a portion of said mixture is flowed to separate heavier components therefrom; means for positioning said separator assembly in the supply basin so that the longitudinal axis of said flow passages is inclined with respect to a horizontal plane and only the lower portion of said separator assembly corresponding to the inlet of said flow passages is below the surface of said mixture in the supply basin with the upper end of said separator assembly corresponding to the outlet of said flow passages being above the inlet end; closure means for closing the outlet end of said separator assembly in a substantially air-tight manner; suction means in communication with the closure means for establishing and maintaining flow of said mixture upwardly through said flow passages, the heavier components separating from said mixture in the flow passages and gravitating towards said basin through the inlet end of said separator assembly and the separated liquid flowing out of said outlet end; and means for rapidly increasing the pressure in the outlet end of said separator assembly so that the upward flow of said mixture through said flow passages is interrupted and is reversed to flow back into said basIn.
Claim 3
Dependent Claim
89 words
The apparatus according to claim 1 including collecting means positioned below the elevation of the inlet end of said separator assembly for collecting the separated liquid; first conduit means in communication with said closure means and said collection means, said first conduit means being arranged to provide a siphoning action on the mixture entering the inlet end of said separator assembly; and wherein said suction means comprises suction pump means in communication with said outlet end for reducing the pressure in said first conduit to initiate the siphoning action.
Claim 4
Dependent Claim
39 words
The apparatus according to claim 2 including flow guiding means positioned in said supply basin upstream and adjacent to the inlet of said separator assembly, said guiding means extending substantially vertical to the longitudinal axis of said flow passages.
Claim 5
Dependent Claim
21 words
The apparatus according to claim 2 wherein said pressure increasing means comprises means for introducing atmospheric air into said closure means.
Claim 6
Dependent Claim
34 words
The apparatus according to claim 2 wherein said positioning means includes means cooperatively connected to said separator assembly for withdrawing the inlet end of said separator assembly from the mixture in the supply basin.
Claim 7
Dependent Claim
57 words
The apparatus according to claim 5 wherein said withdrawing means includes means providing a fixed pivotable axis, the inlet end of said separator assembly being carried on said axis; and means operatively connected to said separator assembly for pivoting said separator assembly about said axis to withdraw said inlet end from the mixture in the supply basin.
Claim 8
Dependent Claim
69 words
The apparatus according to claim 5 wherein said withdrawing means includes platform means positioned adjacent said separator assembly and arranged at an incline corresponding to that of said separator assembly, said separator assembly being slidably mounted to said platform means; and means operatively connected to said separator assembly for moving said separator assembly up said inclined platform to remove said inlet end from the mixture in the supply basin.
Claim 9
Dependent Claim
88 words
The apparatus according to claim 2 including a plurality of said separator assemblies; second conduit means connecting the closure means of all of said separator assemblies to said first conduit means; and valve means located in each of said second conduit means and interposed each of the respective separator assemblies and said first conduit means, said valve means being operated independently to admit atmospheric pressure into the respective separator assembly and arranged to be closed automatically before the interrupting means associated with the corresponding separator assembly is operated.
Claim 10
Dependent Claim
115 words
The apparatus according to claim 1 wherein said supply basin includes a by-pass duct having an inlet and outlet positioned below the surface of said mixture through which a portion of the mixture in the supply basin flows; said separation assembly being located in said by-pass duct; and said by-pass duct being arranged so that the flow rate of said mixture in the portion of the duct adjacent to the inlet of said separator assembly is less than that of the flow of the mixture in the supply basin and the direction of flow of said mixture through the duct is substantially perpendicular to the longitudinal axis of the flow passages of said separator assembly.
Claim 11
Dependent Claim
90 words
The apparatus according to claim 9 wherein said by-pass duct is a pipe having adjoining first and second portions inclining upwardly and downwardly with respect to the flow direction of the mixture in the supply basin, respectively, with the mixture entering the outer end of said first portion and exiting said pipe through the outer end of said second portion, said separator assembly being mounted in said second portion with the longitudinal axis of said second portion being substantially perpendicular to the longitudinal axis of the separator assembly flow passages.
Claim 12
Dependent Claim
38 words
The apparatus according to claim 10 incLuding a third conduit means communicating between the highest point in said pipe between said first and second portions and said closure means through which a bleed flow of said mixture passes.
Claim 13
Dependent Claim
24 words
The apparatus according to claim 10 wherein the elevation of the outlet of said pipe is below that of the inlet of said pipe.
Claim 14
Dependent Claim
33 words
The apparatus according to claim 10 wherein the cross sectional area of said first and second portions diverge and converge in the direction of the flow of said mixture through said pipe, respectively.
Claim 15
Dependent Claim
46 words
The apparatus according to claim 13 wherein the cross section of said first and second portions are arranged so that the flow rate of said mixture exiting said second portion is not in excess of the flow rate of the mixture flowing through the supply basin.
Claim 16
Dependent Claim
98 words
The apparatus according to claim 10 wherein said separator assembly comprises superposed corrugated means defining said flow passages and further includes vertical guiding partitions at the inlet of the separator assembly extending to a lower wall of said pipe opposite to said inlet, said partitions defining ducts alternately communicating with the tops and valleys respectively of the flow passages of the separator assembly with the ducts communicating with the valleys being provided with transverse plates extending at an angle from the upper portion of the inlet of the separator assembly and closing the greater part of said ducts.
Claim 17
Dependent Claim
26 words
The apparatus according to claim 15 including substantially vertical extending guide partition means positioned upstream of said separator assembly in said first portion of the 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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |