Patent ID: 6406216
Filing Date: 2002-06-18
Classification: E03F,F15C,Y10T

Abstract:
A storm sewer overflow control device for controlling runoff surge flows from a first pipe into a generally normally oriented second pipe, comprising:an engagement portion configured for insertion into the second pipe; a flow control portion attachable to said engagement portion and configured for receiving runoff surge flow flowing down the storm drain and slowing the flow for entry into the second pipe through said engagement portion; said flow control portion including a cowl attachable to a flange and having a sidewall defining an inlet; said engagement portion having a proximal end and a distal end, and at least one component being radially expandable to create a friction fit against an interior surface of the second pipe for retaining said engagement portion in the second pipe; clog release means for releasing debris trapped between said flow control portion and said engagement portion, said clog release means includes at least one door formed in said sidewall, said door defining an opening bordered by said cowl and said flange for temporarily increasing the flow of water through said device.