Patent US4000618A successfully refreshed from Google Patents.
US4000618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Skimmer fence
Assignee: ExxonMobil Upstream Research Co
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Filing: 1975-04-28
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Granted: 1977-01-04
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Expires: 1995-04-28
Abstract
Abstract A pollution containment fence or barrier retains petroleum products, or other floatable material, from a flowing stream of liquid. The barrier includes a series of vertically "stacked" baffles. When in operating position the barrier extends across the breadth of the stream and to any desired distance above and below the surface of the liquid. The baffles are spaced apart with each baffle overlapping a portion of the baffle or baffles adjacent to it to form a passageway between each baffle for flow of the liquid stream through the barrier. In cross section each baffle may comprise two straight members perpendicular to and extending in opposite directions to a third straight member or each baffle may comprise a semicircle in cross section.
Inventors
- 👤 Leland F. Stovall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:07
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/06; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
98 words
Apparatus for removing a layer of oil floating on a substantially level unidirectional flowing stream of water from said stream comprising: a plurality of water impervious baffles connected together in a vertical arrangement; each baffle overlapping in a vertical plane a selected portion of an adjacent baffle to form a plurality of flow passageways between each baffle, each passageway defining a selected overflow space across the length of said baffle, and each baffle extending completely across said stream and comprising two parallel spaced apart vertically extending baffle members connected together by a horizontally extending baffle member perpendicular thereto.
Claim 2
Dependent Claim
98 words
Apparatus for removing a layer of oil floating on a substantially level unidirectional flowing stream of water from said stream comprising: a plurality of water impervious baffles connected together in a vertical arrangement; each baffle overlapping in a vertical plane a selected portion of an adjacent baffle to form a plurality of flow passageways between each baffle, each passageway defining a selected overflow space across the length of said baffle, and each baffle extending completely across said stream and comprising two parallel spaced apart vertically extending baffle members connected together by a horizontally extending baffle member perpendicular thereto.
Claim 3
Dependent Claim
27 words
Apparatus as recited in claim 1 in which said two parallel spaced apart vertically extending baffle members are inclined with respect to the level of said stream.
Claim 4
Dependent Claim
97 words
Apparatus for removing a layer of oil floating on a substantially level unidirectional flowing stream of water from said stream comprising: a plurality of water impervious baffles connected together in a vertical arrangement; each baffle overlapping in a vertical plane a selected portion of an adjacent baffle to form a plurality of flow passageways between each baffle, each passageway defining a selected overflow space across the length of said baffle, and each baffle extending completely across said stream and comprising a semicylindrical baffle member, said adjacent overlapping semicylindrical baffle members having their open halves facing each other.
Claim 5
Dependent Claim
97 words
Apparatus for removing a layer of oil floating on a substantially level unidirectional flowing stream of water from said stream comprising: a plurality of water impervious baffles connected together in a vertical arrangement; each baffle overlapping in a vertical plane a selected portion of an adjacent baffle to form a plurality of flow passageways between each baffle, each passageway defining a selected overflow space across the length of said baffle, and each baffle extending completely across said stream and comprising a semicylindrical baffle member, said adjacent overlapping semicylindrical baffle members having their open halves facing each other.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-01-04 | 1980-07-05 | 1981-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-01-04 | 1984-07-05 | 1985-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-01-04 | 1988-07-05 | 1989-01-04 | $7700.00 | Window Closed / Lapsed |