Patent ID: 6743354
Filing Date: 2004-06-01
Classification: E03F

Abstract:
A catch basin constructed for insertion into a pre-existing storm drain connected to a storm drain system for selectively controlling the flow of liquids into the storm drain system, the storm drain having a shoulder around its upper periphery for supporting a pre-existing, perforated storm drain cover, said catch basin comprising:a flexible, fluid impermeable container extendable into the storm drain and having edges extendable over the storm drain shoulder about the periphery thereof, the fluid impermeable container having a drain hole; and a valve member attached to the fluid impermeable container and configured to selectively open and close the drain hole, the valve member including a vertically extending wall surrounding the drain hole and extending upward therefrom a distance h to define an opening, and a cover movable between a closed position where the cover sealingly contacts the vertical wall opening prohibiting the flow of liquids through the drain hole and an open position where the cover is moved away from the vertical wall opening permitting the flow of liquids through the drain hole, wherein with the cover in the open position, liquid accumulating in the fluid impermeable container will not pass through the drain hole until the liquid rises to a level exceeding the height h of the vertically extending wall surrounding the drain hole.