US3817385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and a device for collecting substances floating in a liquid surface
Assignee: Individual
•
Filing: 1971-04-01
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Granted: 1974-06-18
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Expires: 1991-04-01
Abstract
Abstract A method and an apparatus for collecting substances floating in a liquid surface, especially oil and other sticky liquids in a water surface, using an endless, rotating conveyor band, one end of which being immersed in the liquid, and a collecting band, which is running from a supply down into the liquid and, resting on the conveyor band, up from the liquid, carrying with it substances floating in the liquid surface to a collecting device, receiving the collecting band and the substances transported on said band. Thus, substances in the liquid surface are lifted up from underneath and removed out of the liquid by the collecting band.
Inventors
- 👤 H Bergman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:43
CPC Classifications
E; E02; E02B; E02B15/00; E02B15/04; E02B15/10; E02B15/104; Y; Y02; Y02A; Y02A20/00; Y02A20/20; Y02A20/204
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
180 words
A device for removing substances floating on a water surface, comprising: a. an endless conveyor band positioned at an acute angle with respect to said water surface with the lower end of the conveyor band below the water surface and the upper end of the conveyor band being disposed above said water surface, b. means for driving said conveyor band, c. an elongated paper collecting sheet, d. means for feeding said paper collecting sheet around the exterior of said conveyor band and in close proximity thereto from the point that the conveyor band enters the water until the conveyor band leaves the water, e. means for separating said collecting sheet from proximity with said conveyor band at a point above said water level, f. receiving means for receiving said collecting sheet after it has been separated from said conveyor band, g. said conveyor band being provided with transport ribs on its outer surface so as to form pockets on the conveyor band, h. said paper collecting sheet and said conveyor band being provided with holes to facilitate drainage of water.
Claim 2
Independent Claim
180 words
A device for removing substances floating on a water surface, comprising: a. an endless conveyor band positioned at an acute angle with respect to said water surface with the lower end of the conveyor band below the water surface and the upper end of the conveyor band being disposed above said water surface, b. means for driving said conveyor band, c. an elongated paper collecting sheet, d. means for feeding said paper collecting sheet around the exterior of said conveyor band and in close proximity thereto from the point that the conveyor band enters the water until the conveyor band leaves the water, e. means for separating said collecting sheet from proximity with said conveyor band at a point above said water level, f. receiving means for receiving said collecting sheet after it has been separated from said conveyor band, g. said conveyor band being provided with transport ribs on its outer surface so as to form pockets on the conveyor band, h. said paper collecting sheet and said conveyor band being provided with holes to facilitate drainage of water.
Claim 3
Dependent Claim
38 words
The device of claim 1 wherein the receiving means comprises a table adjacent the upper portion of the conveyor band path and means for guiding the paper web over said table for further transportation to a receiving means.
Claim 4
Dependent Claim
33 words
The device of claim 2 wherein said table is provided with an endless continuously rotatable conveyor band for facilitating the transportation of the paper band and the collected substances into the receiving means.
Claim 5
Dependent Claim
51 words
The device of claim 1 wherein the ribs extend substantially from one edge of the conveyor band to the opposite endge and have a greater height at one edge of the conveyor band than at the other edge, so that the water accompanying the paper band and the oil runs off.
Claim 6
Dependent Claim
36 words
The device of claim 4 wherein a number of the ribs are inclined towards one edge of the conveyor band and a number of the ribs are inclined towards the opposite edge of the conveyor band.
References Cited (Backward Citations)
US1860819A
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US3087620A
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US3314545A
Cited
US3630891A
Cited
US3617552A
Cited
US3617555A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |