US3607741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil slick removal system
Assignee: Individual
•
Filing: 1970-02-19
•
Granted: 1971-09-21
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Expires: 1990-02-19
Abstract
Abstract Physical means for removing oil slicks from water and other surfaces utilizing chemically treated cellulosic bulk material contained in encasements of netting. The chemically treated material is hydrophobic but exhibits an affinity for oil. Oil thus gathered can be reclaimed.
Inventors
- 👤 Alfred Sohnius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:57
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/06; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
19 words
A system for oil slick removal as recited in claim 1, wherein oil-gathering means has substantially cylindrical exterior shape.
Claim 2
Dependent Claim
23 words
A system for oil slick removal as recited in claim 2, wherein the means for containing the cellulosic mass means comprises a netting.
Claim 3
Dependent Claim
39 words
A system for oil slick removal as recited in claim 3, comprising a plurality of said oil-gathering cylinders, one end of all cylinders being pivotally attached proximately to a central point, and anchor means depending from said central point.
Claim 4
Dependent Claim
29 words
A system for oil slick removal as recited in claim 3 wherein the netting is metallic, thereby preventing the cellulosic mass means from being released to disperse when afire.
Claim 5
Dependent Claim
25 words
A system for oil slick removal as recited in claim 2, and a plurality of watertight air-containing spherical shells interspersed throughout said cellulosic mass means.
Claim 6
Dependent Claim
36 words
A system for oil slick removal as recited in claim 2 wherein the oil-gathering means is in the shape of flat mAtting, thereby being adapted for storage by rolling and deployment onto said oil by unrolling.
Claim 7
Dependent Claim
25 words
A system for oil slick removal as recited in claim 7 wherein one broad surface of the flat matting is covered with a nonabsorptive membrane.
Claim 8
Independent Claim
101 words
A system for oil slick removal from water surfaces and the like, comprising: a unitary cylindrically shaped conglomerate of free-floating oil-gathering means, said oil-gathering means including cellulosic mass means comprising an aggregate of air-containing pulp-walled chambers and a plurality of resilient fibers interspersed through said aggregate, the average length of the fibers being substantially greater than the average dimension across said chambers; means for containing the cellulosic mass means; means for rendering the cellulosic mass means hydrophobic, comprising water repellent commingled with and coating all said pulp walls and fibers; and anchor means effectively attached medianly the length of said cylinder.
Claim 9
Dependent Claim
95 words
A process of oil slick removal from water surfaces and the like, comprising the steps: a. preparing a free-floating oil absorbing cellulosic mass means having resilient-fiber-reinforced pulp-walled air chambers therein, with water repellent commingled with and coating all said pulp walls and fibers; b. constraining said cellulosic mass means in cylindrical form by means of netting; c. floating said cylindrically formed cellulosic mass means upon a said surface in contact with the oil thereon; d. removing the oil-contacted cylindrically formed cellulosic mass means from said surface, thereby removing the oil slick from the water surface.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |