US4557832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for removing oil from water
Assignee: IHC Holland NV
•
Filing: 1984-01-25
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Granted: 1985-12-10
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Expires: 2004-01-25
Abstract
Abstract The invention relates to an apparatus for removing oil from water, comprising a horizontal roller cooperating with a scraper blade as well as a receiving tray, the improvement being that the roller has its upper surface at the level of the water surface and is placed above the receiving tray and that between roller and the suction pump side of the receiving tray a grate has been placed, which cuts the collected oil into dischargeable pieces.
Inventors
- 👤 Pieter Verboom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:03
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: 4
Claim 1
Independent Claim
114 words
An apparatus for removing oil from water, comprising a roller which can be driven and has a horizontal axis of rotation, a scraper blade cooperating with the surface of the roller and a receiving tray; the improvement in which the roller has its upper surface at the level of the water surface and is above the receiving tray which is below the water surface, a suction pressure pump connected to said receiving tray, and a grate located immediately below the roller and below the scraper blade and above the inlet of the pump so that the grate subdivides the oil separated from the water by the roller as the oil passes through the grate.
Claim 2
Independent Claim
114 words
An apparatus for removing oil from water, comprising a roller which can be driven and has a horizontal axis of rotation, a scraper blade cooperating with the surface of the roller and a receiving tray; the improvement in which the roller has its upper surface at the level of the water surface and is above the receiving tray which is below the water surface, a suction pressure pump connected to said receiving tray, and a grate located immediately below the roller and below the scraper blade and above the inlet of the pump so that the grate subdivides the oil separated from the water by the roller as the oil passes through the grate.
Claim 3
Dependent Claim
15 words
Apparatus as claimed in claim 1, in which the grate is formed by steel wires.
Claim 4
Dependent Claim
15 words
Apparatus as claimed in claim 1, and ridges on the roller extending in circumferential direction.
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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) | 1988-12-09 | 1989-06-10 | 1989-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-12-09 | 1993-06-10 | 1993-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-12-09 | 1997-06-10 | 1997-12-10 | $7700.00 | Window Closed / Lapsed |