US4172039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil absorbers and method of using them
Assignee: Ikeda Corp
•
Filing: 1977-05-19
•
Granted: 1979-10-23
•
Expires: 1997-05-19
Abstract
Abstract A container has, in an upper part thereof, a body of an oleospecific absorbing material, composed mainly of a vegetable substance, preferably coir dust, minutely particulated, having an abundance of fine pores on the surface thereof, impregnated with hydrophobic material to provide a water repellent property and advantageously coated with oil permeable and oil-absorptive materials. This material, in the container, is exposed to mineral oil, floating on the ocean or on industrial waste water or the like. The oil ultimately drains into the container below the material, and is removed therefrom.
Inventors
- 👤 Takeo Akiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:56
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: 2
Claim 1
Independent Claim
124 words
An oil fence, comprising; a plurality of oil absorber collector means, each including a container, a body of porous material, including coir dust impregnated with a hydrophobic-olephilic substance, disposed in an upper part of the container for contact with oil floating on the sea and surrounding the container, to absorb such oil by the body, said body functioning to enable oil to pass therethrough to said container while simultaneously repelling the passage of water therethrough; means for causing absorbed oil to drip into a lower part of the container and to be collected therein, means for enabling the container to float in the oil floating on the sea, means for withdrawing collected oil from the container; and connector means for flexibly interconnecting the containers.
Claim 2
Dependent Claim
124 words
An oil fence, comprising; a plurality of oil absorber collector means, each including a container, a body of porous material, including coir dust impregnated with a hydrophobic-olephilic substance, disposed in an upper part of the container for contact with oil floating on the sea and surrounding the container, to absorb such oil by the body, said body functioning to enable oil to pass therethrough to said container while simultaneously repelling the passage of water therethrough; means for causing absorbed oil to drip into a lower part of the container and to be collected therein, means for enabling the container to float in the oil floating on the sea, means for withdrawing collected oil from the container; and connector means for flexibly interconnecting the containers.
References Cited (Backward Citations)
US3464920A
Cited
US3617566A
Cited
DE1815592A1
Cited
US3627677A
Cited
US3703464A
Cited
US3917528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-10-22 | 1983-04-23 | 1983-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-22 | 1987-04-23 | 1987-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-22 | 1991-04-23 | 1991-10-23 | $7700.00 | Window Closed / Lapsed |