Inventors:
Richard E. Warren - Kensington NH
International Classification:
F16K 300
Abstract:
An apparatus for containing a spill and regulating the flow of a liquid into a drainage inlet comprise a flange for engaging the opening of the drainage inlet and a sidewall extending from the flange, the sidewall defining a pair of drainage openings therein adjacent the flange and a movable member is positionable in the drainage openings for preventing the flow of the liquid into the drainage inlet through the drainage openings, the movable member can be opened progressively from adjacent the flange to allow a heavier density fluid, such as water, to flow into the drainage opening while maintaining a lighter density fluid, such as oil, floating on the surface of the mixture that collects around the apparatus and thereby prevents entry of the oil into the drainage inlet.