Separator for liquids of different densities
US4960513A · kind A · utility
20Cited by
6References
2Claims
0Family size
Inventor
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | Oct 2, 1990 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D17/0214
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A liquid separator allows a mixture of oil and water to separate, then discharges the two fractions. A separating tank is automatically filled when a float indicates a low level. A second float is close to the bottom of the tank and has a density such that the float will just float in water. The presence of oil causes the second float to sink; and, a switch connected to the float operates either a water valve when the float rises, or an oil pump when the density is low. Lowering of the level by discharging fractions causes the first float to indicate a low level to fill the tank again.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.