Swirl chamber with movable non-return valve and air injector...

Details Swirl chamber with movable non-return valve and air injector... Swirl chamber with movable non-return valve and air injector...

2005-03-14

2010-10-12

Lithgow, Thomas M (Department: 1797)

Liquid purification or separation

Structural installation

Geographic

C210S136000, C210S242100, C210S242200, C210S416100, C137S578000, C137S544000, C137S592000, C137S403000, C137S808000, C137S809000, C137S810000

Reexamination Certificate

active

07811450

ABSTRACT:
A device for preventing sedimentation by regulating the flow of waste water through drain draining-wells, with or without a pump. The device has of a swirl chamber with connected outlet pipe and provided with an air injector. The swirl chamber which is tapered, generates a vortex flow in which the air added by the air injector gives the sludge particles a certain amount of buoyancy, making it easier for them to accompany the water flow without being precipitated.

REFERENCES:
patent: 4206783 (1980-06-01), Brombach
patent: 4451366 (1984-05-01), Smisson
patent: 4834142 (1989-05-01), Johannessen
patent: 4983294 (1991-01-01), Lamb
patent: 5462075 (1995-10-01), Persson
patent: 5531888 (1996-07-01), Geiger et al.
patent: 5698099 (1997-12-01), Fagan et al.
patent: 5814216 (1998-09-01), Filion
patent: 5902477 (1999-05-01), Vena
patent: 6053206 (2000-04-01), Johannesen
patent: 6187178 (2001-02-01), Lecornu et al.

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