Storm sewer overflow control device
First Claim
1. 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 engagement portion being radially expandable to sealingly engage an interior surface of the second pipe.
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Accused Products
Abstract
A storm sewer overflow control device for controlling runoff surge flows from a generally vertically oriented storm drain into a generally horizontally oriented storm sewer pipe includes an engagement portion configured for insertion into the storm sewer pipe, a flow control portion attachable to the engagement portion and configured for receiving runoff surge flow flowing down the storm drain and slowing the flow for entry into the storm sewer through the engagement portion. The engagement portion is radially expandable to sealingly engage an interior surface of the storm sewer pipe, and preferably is configured to expand radially as it is shortened axially.
18 Citations
20 Claims
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1. A storm sewer overflow control device for controlling runoff surge flows from a first pipe into a generally normally oriented second pipe, comprising:
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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 engagement portion being radially expandable to sealingly engage an interior surface of the second pipe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 20)
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16. A storm sewer overflow control device for controlling runoff surge flows from a generally vertically oriented storm drain into a generally horizontally oriented storm sewer pipe, comprising:
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an engagement portion configured for insertion into the storm sewer pipe and including a flange, a wedge ring, a plurality of annularly spaced slats each having a proximal end secured to said flange and a distal end engaging said wedge ring; a flow control portion attachable to said flange and defining a flow path configured for receiving runoff surge flow flowing down the storm drain and slowing the flow for entry into the storm sewer pipe; and expander mechanism configured to draw said wedge ring toward said flange to radially expand said slats against an inside surface of the storm sewer pipe. - View Dependent Claims (17, 18, 19)
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Specification