US3886067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for controlling oil slicks
Assignee: Individual
•
Filing: 1970-02-03
•
Granted: 1975-05-27
•
Expires: 1990-02-03
Abstract
Abstract Oil slicks on surface waters are controlled by applying oleophilic foam material to the slick from a boat or airplane. In one case the material foams and binds the oil to form sponge-like clods which can be skimmed from the surface by another ship. In another embodiment chips of the film material which are formed on board the craft are applied to the oil slick.
Inventors
- 👤 Salvatore W Miranda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:26
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/041; C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
50 words
A METHOD OF COAGULATING OIL SLICKS ON WATER COMPRISING THE STEPS OF: APPLYING TO THE SLICK AN OLEOPHILIC ORGANIC RESIN SEMI-RIGID TO RIGID FOAM CONTAINING A MIXTURE OF WATER SOLUBLE AND OIL SOLUBLE SURFACTANTS, BINDING THE OIL ON THE FOAM, AND REMOVING THE FOAM FROM THE SURFACE OF THE WATER.
Claim 2
Independent Claim
50 words
A METHOD OF COAGULATING OIL SLICKS ON WATER COMPRISING THE STEPS OF: APPLYING TO THE SLICK AN OLEOPHILIC ORGANIC RESIN SEMI-RIGID TO RIGID FOAM CONTAINING A MIXTURE OF WATER SOLUBLE AND OIL SOLUBLE SURFACTANTS, BINDING THE OIL ON THE FOAM, AND REMOVING THE FOAM FROM THE SURFACE OF THE WATER.
Claim 3
Dependent Claim
18 words
A method according to claim 1 in which the foam is in the form of pre-foamed thin chips.
Claim 4
Dependent Claim
18 words
A method according to claim 2 in which the chips have a thickness of 1/16 to 1/8 inch.
Claim 5
Dependent Claim
36 words
A method according to claim 2 in which reactive resin forming liquids are reacted on a craft above the water to form the foam which is then cut into chips and applied to the oil slick.
Claim 6
Dependent Claim
30 words
A method according to claim 1 in which foam forming resin component liquids are sprayed onto the oil slick and the liquids react and bind the oil into foam particles.
Claim 7
Dependent Claim
20 words
A method according to claim 1 in which the foam is formed from a polyol and a polyol reactive resin.
Claim 8
Dependent Claim
21 words
A method according to claim 6 further including 10-25% by weight of a foaming agent and said resin is a polyisocyanate.
Claim 9
Dependent Claim
16 words
A method according to claim 7 in which the foaming agent is a flourinated hydrocarbon liquid.
Claim 10
Independent Claim
60 words
A system for controlling an oil slick on the surface of water comprising: a craft for traversing the slick; supply means containing a reservoir of oleophilic semi-rigid to rigid foam resin containing a mixture of water soluble and oil soluble surfactants mounted on said craft; and dispensing means mounted on said craft for applying the foam resin to the slick.
Claim 11
Independent Claim
60 words
A system for controlling an oil slick on the surface of water comprising: a craft for traversing the slick; supply means containing a reservoir of oleophilic semi-rigid to rigid foam resin containing a mixture of water soluble and oil soluble surfactants mounted on said craft; and dispensing means mounted on said craft for applying the foam resin to the slick.
Claim 12
Dependent Claim
19 words
A system according to claim 9 wherein said supply means contains liquid components reactive to form an oleophiliC foam.
Claim 13
Dependent Claim
29 words
A system according to claim 10 in which said dispensing means contains means for separately applying the liquid components to the oil slick to react and bind said oil.
Claim 14
Dependent Claim
43 words
A system according to claim 10 in which said supply means further contains mixing means for mixing said components, foaming means receiving said mixed components for forming a solid foam of said components and atrrition means for forming chips of said solid foam.
Claim 15
Dependent Claim
32 words
A system according to claim 12 in which said foaming means comprises a receptacle positioned under said mixing means and said attrition means is disposed in the lower portion of said receptacle.
Claim 16
Dependent Claim
60 words
A system according to claim 13 in which said attrition means comprising a hollow rotatable drum containing slots for chipping said solid foam whereby the chips enter the inside of said drum and said dispensing means comprise a source of gas disposed at one end of the drum and an outlet chute disposed at the opposite end of the drum.
Claim 17
Dependent Claim
32 words
A system according to claim 12 which said foaming means comprise a conveyor belt, means for moving said conveyor belt and vertical guide members disposed on each side of the conveyor belt.
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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) | 1978-05-26 | 1978-11-25 | 1979-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-26 | 1982-11-25 | 1983-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-26 | 1986-11-25 | 1987-05-27 | $7700.00 | Window Closed / Lapsed |