US3628660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator for nonmiscible liquids
Assignee: ROTTERDAMS HAVENREINIGINGEN TR
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Filing: 1970-03-27
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Granted: 1971-12-21
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Expires: 1990-03-27
Abstract
Abstract A separator for nonmiscible liquids such as oil and water comprises a bell immersed in water and into which the oil and water are introduced. The bell floats or not, depending on the quantity of oil it contains, and a control responsive to the upward pressure of the floating bell prevents excessive introduction of oil into the bell. Oil is withdrawn from adjacent the top of the bell and water is withdrawn through an oleophobic filter beneath the bell. The filter can be backwashed with water. An underpressure in the separator can be maintained either by gravity or by a downstream pump.
Inventors
- 👤 Cornelis In T Veld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:59
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/06; B; B01; B01D; B01D17/00; B01D17/02; B01D17/0208; B01D17/0214; B01D17/08; B01D17/10
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
19 words
A separator as claimed in claim 1, said bell terminating downwardly in a collar that telescopes with a flange,
Claim 2
Dependent Claim
24 words
A separator as claimed in claim 2, and a valve-controlled conduit extending downwardly from said wall for discharging sediment that collects on said wall.
Claim 3
Dependent Claim
15 words
A separator as claimed in claim 2, said wall being downwardly inclined toward its center.
Claim 4
Dependent Claim
24 words
A separator as claimed in claim 4, and filter means supported above said multiperforate wall, said filter means selectively passing only said heavier liquid.
Claim 5
Dependent Claim
28 words
A separator as claimed in claim 1, and a plurality of vertical pipes open at both ends and mounted in the bell to promote separation of the liquids.
Claim 6
Dependent Claim
36 words
A separator as claimed in claim 1, and a discharge conduit for the heavier liquid from the bottom of the tank, and means to supply said heavier liquid under pressure to the bottom of the tank.
Claim 7
Dependent Claim
48 words
A separator as claimed in claim 1, and means responsive to upward movement of the bell to discontinue withdrawal of the heavier liquid from the tank and to introduce said heavier liquid into the bottom of the tank thereby to force said lighter liquid out of the separator.
Claim 8
Dependent Claim
49 words
A separator as claimed in claim 8, and a container for cleaning medium in parallel fluid circuit with said means for introducing said heavier liquid into the bottom of the tank, and means for selectively directing said heavier liquid through said container and into the bottom of said tank.
Claim 9
Dependent Claim
50 words
A separator as claimed in claim 1, and a rising pipe extending from adjacent the bottom of the bell up through the top of the bell for conveying to a location above the bell a portion of said lighter liquid when an excess of lighter liquid accumulates in the bell.
Claim 10
Dependent Claim
25 words
A separator as claimed in claim 1, and a pump downstream of the tank for discharging said heavier liquid from the bottom of the tank.
Claim 11
Dependent Claim
22 words
A separator as claimed in claim 11, and a bypass conduit for discharging said heavier liquid in bypass relationship to said pump.
References Cited (Backward Citations)
US2307154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |