E - Fixed Constructions – 03 – B
Patent
E - Fixed Constructions
03
B
E03B 7/08 (2006.01) B01D 21/00 (2006.01) B08B 3/00 (2006.01)
Patent
CA 2171132
A drain flow control assembly for liquids draining from a sink or the like to a reservoir having a given liquid level. The flow control assembly includes a downtube with its inlet opening above the level of the liquid and its outlet below the liquid level, a divider plate surrounding the outlet opening and extending radially outwardly of the opening a distance equal to at least twice the diameter of the downtube opening. The assembly also includes a radially smaller, imperforate deflector plate positioned beneath and spaced closely apart from the divider plate, so as to form a radially extending transfer space between the two plates. When the assembly is positioned in a liquid-containing reservoir with the downtube outlet below the upper surface of the liquid, liquid flows vertically through the downtube outlet opening and then horizontally through the radial transfer space. The flow through the transfer space serves to separate entrained particulate matter disposed in the liquid, and the divider plate serves to separate the reservoir into a lower, particulate matter settling region and an upper region of quiescent, clarified liquid.
Danowski Thomas J.
Dvorak Michael R.
Osler Hoskin & Harcourt Llp
Safety-Kleen Corp.
Safety-Kleen Systems Inc.
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