U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Separator device

Patent 6645387 Issued on November 11, 2003. Estimated Expiration Date: Icon_subject February 5, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

745519

1199099

1864511

2025883

3862040

Oil separator for separating oil lighter than the purified liquid being in a very pure state
Patent #: 3933654
Issued on: 01/20/1976
Inventor: Middelbeek

Settling tank
Patent #: 4122016
Issued on: 10/24/1978
Inventor: Tao ,   et al.

Two-stage oil skimmer separator
Patent #: 4132645
Issued on: 01/02/1979
Inventor: Bottomley ,   et al.

Apparatus for water treatment
Patent #: 4144170
Issued on: 03/13/1979
Inventor: Dunkers

Separator for multi-phase liquids
Patent #: 4396508
Issued on: 08/02/1983
Inventor: Broughton

More ...

Inventors

Assignee

Application

No. 10/068110 filed on 02/05/2002

US Classes:

210/744, Level sensing210/104, Responsive to material level210/187, Within gravitational separator210/262, On different levels210/521, Superposed compartments or baffles, e.g., parallel plate type210/534, In sloping recess210/537, With discharge means for two or more lighter constituents210/539, Gas vent or bypass210/540, With discharge port210/800Utilizing gravitational force

Examiners

Primary: Upton, Christopher

Attorney, Agent or Firm

International Classes

E03F 5/14 (20060101)
E03F 5/16 (20060101)
B01D 17/00 (20060101)
B01D 21/00 (20060101)

Foreign Application Priority Data

2001-02-15 FI

Abstract

A method and device for separating grease from waste water. The separator device includes a receptacle with an upper first part and a lower second part separated by a plate. The receptacle further has an inlet port for waste water, a discharge port for separated waste water, discharge means for grease and/or sludge, and an overflow pipe establishing a connection between the receptacle first part and the receptacle second part. Waste water is supplied through the inlet port to the upper first part, and the waste water is allowed to undergo a separation by gravity, whereby a grease layer is formed on a separated waste water layer and a sludge layer on the plate. In order to achieve a high degree of separation, separated waste water is allowed to flow through the overflow pipe to the receptacle lower second part. Grease is removed from the grease layer and/or sludge from the sludge layer through the discharge means, and separated waste water is discharged through the discharge port.

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