US3617564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removing oil or oil substance from water and land areas using corncob components
Assignee: Anderson Cob Mills Inc
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Filing: 1970-06-01
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Granted: 1971-11-02
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Expires: 1990-06-01
Abstract
Abstract Low-density corncob meal is placed on a polluting oil deposit in a body of water or on a land area. The corncob components absorb the oil and the contaminated corncob meal is then removed from the body of water or from the land area.
Inventors
- 👤 John Vander Hooven
- 👤 David I B Vander Hooven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/924
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
A method according to claim 1 wherein the oil or oily substance defines a configuration having an outer periphery on the surface of the water, comprising surrounding the outer periphery of the oil configuration with a band of the corncob components to limit the spreading of the oil, placing the corncob components over the remainder of the oil configuration, and removing the oil-contaminated components from the water.
Claim 2
Dependent Claim
76 words
Material for use in removing oil or oil substances from water or land areas consisting essentially of corncob components excluding all but trace amounts of the woody ring component, said corncob components having a density of between 5 pounds and 20 pounds per cubic foot and wherein said corncob components are of a size where at least 95 percent pass through a 6-mesh screen and a minimum of 85 percent are retained on a 100-mesh screen.
Claim 3
Dependent Claim
23 words
Material according to claim 3, wherein said corncob components include corncob fine chaff, coarse chaff, pith and the trace amounts of woody ring.
Claim 4
Independent Claim
74 words
A method for removing oil or oily substances from the surface or upper layer of a land area, comprising spreading an absorbent consisting essentially of corncob components excluding all but trace amounts of the woody ring component, the absorbent having a density of between 5 pounds and 20 pounds per cubic foot upon the oil, absorbing the oil or oily substance with the absorbent, and removing the oil-contaminated corncob components from the land area.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |