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US3962093A
Expired / Lapsed
US
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Apparatus for removing contaminants from the surface of a fluid
Assignee: Federal Mogul Engineering Ltd
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Filing: 1975-03-05
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Granted: 1976-06-08
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Expires: 1995-03-05
Abstract
Abstract Oil and other contaminants are removed from a surface of liquid e.g. in a settling tank of an internal combustion engine by a system incorporating a pump for circulating liquid through an annular nozzle disposed above the surface by floats. The nozzle directs a stream of liquid on to the surface and this stream carries contaminant below the surface where it is received by a nozzle communicating with a source of suction.
Inventors
- 👤 Roland Richard Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:30
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/108; B; B01; B01D; B01D21/00; B01D21/24; B01D21/2433; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A liquid-surface-layer extraction device including a floatable assembly having first, second and third spaced floats, the first float being connected to each of the second and third floats by interconnecting inlet and outlet tubes respectively, the inlet tube having fluid flow communication with an upwardly extending supply tube mounted on one of the second and third floats and the discharge tube having fluid flow communication with an upwardly extending discharge tube mounted on the other of the second and third floats, the interconnecting tubes supporting between them a nozzle which is adapted to direct a stream of fluid downwardly into the surface of a body of liquid, an orifice being disposed directly below said nozzle and being adapted to receive a layer of the liquid entrained by said fluid stream, the orifice being connected to the outlet tube, the nozzle having a supply duct which extends upwardly through said orifice and the lower end of the supply duct being connected to the interconnecting inlet tube.
Claim 2
Dependent Claim
165 words
A liquid-surface-layer extraction device including a floatable assembly having first, second and third spaced floats, the first float being connected to each of the second and third floats by interconnecting inlet and outlet tubes respectively, the inlet tube having fluid flow communication with an upwardly extending supply tube mounted on one of the second and third floats and the discharge tube having fluid flow communication with an upwardly extending discharge tube mounted on the other of the second and third floats, the interconnecting tubes supporting between them a nozzle which is adapted to direct a stream of fluid downwardly into the surface of a body of liquid, an orifice being disposed directly below said nozzle and being adapted to receive a layer of the liquid entrained by said fluid stream, the orifice being connected to the outlet tube, the nozzle having a supply duct which extends upwardly through said orifice and the lower end of the supply duct being connected to the interconnecting inlet tube.
References Cited (Backward Citations)
US1450545A
Cited
US2989185A
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US3759390A
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US3789586A
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US3756578A
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US3876540A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-08 | 1979-12-08 | 1980-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-08 | 1983-12-08 | 1984-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-08 | 1987-12-08 | 1988-06-08 | $7700.00 | Window Closed / Lapsed |