US3612277A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering oil from an oil slick
Assignee: Texaco Inc
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Filing: 1970-06-15
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Granted: 1971-10-12
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Expires: 1990-06-15
Abstract
Abstract A rotatable drum type of oil skimmer which is continually rotated to pick up a film of oil and water on the surface of the drum, having a supplemental or transfer drum located substantially above the oil slick and well out of contact therewith, so as to come into contact with film on the pickup drum and receive a portion of the film, product oil being recovered from both drums.
Inventors
- 👤 Merle H Van Stavern
- 👤 Wylie T Jones
- 👤 Howard F Cossey
- 👤 Wendall J Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:16
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/103; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
133 words
The method of recovering oil from an oil slick on a marine surface wherein the lower surface of a rotating roller is continuously rotated into contact with an oil slick, removing therefrom an adhering layer of oil with accompanying water, the improvement which comprises passing said surface with its adhering layer of oil adjacent the surface of a parallel transfer roller which is located substantially above and out of contact with the oil spill, the surfaces of said two rollers being spaced a distance such that there is a substantial gap between the adjacent surfaces of the two rollers, the surface of the transfer roller however contacting said adhering layer of oil on the pickup roller to receive a layer of oil therefrom and recovering the oil layer from both of said rollers.
Claim 2
Independent Claim
133 words
The method of recovering oil from an oil slick on a marine surface wherein the lower surface of a rotating roller is continuously rotated into contact with an oil slick, removing therefrom an adhering layer of oil with accompanying water, the improvement which comprises passing said surface with its adhering layer of oil adjacent the surface of a parallel transfer roller which is located substantially above and out of contact with the oil spill, the surfaces of said two rollers being spaced a distance such that there is a substantial gap between the adjacent surfaces of the two rollers, the surface of the transfer roller however contacting said adhering layer of oil on the pickup roller to receive a layer of oil therefrom and recovering the oil layer from both of said rollers.
Claim 3
Dependent Claim
40 words
The method of recovering oil from an oil slick floating on a marine surface as called for in claim 1 wherein cooling means is provided for continuously introducing a refrigerant into the interior of one or more of the drums.
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) | 1974-10-11 | 1975-04-12 | 1975-10-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-11 | 1979-04-12 | 1979-10-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-11 | 1983-04-12 | 1983-10-12 | $7700.00 | Window Closed / Lapsed |