Device for skimming oil from water
US4957636A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1989 |
| Grant date | Sep 18, 1990 |
| Priority date | — |
| Expiry date | Sep 27, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/923
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A dual drum skimmer is provided for the removal and recovery of oil floating on water. The skimmer includes two oil pick-up drums arranged along a common axis which pick up oil and deposit it in a collection trough. Oil deposited in the collection trough is directed to a reservoir trough arranged on the opposite side of the drums from the collection trough. The drums are formed as hollow, closed cylinders and, together with the reservoir trough, provide the total buoyancy necessary to float the skimmer. The skimmer is particularly effective in shallow and in trash laden water and can operate in water depths of as little as three inches.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.