In-pipe storm water filter
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorsBrandon Lawson Swope, Leonard David Sinfield, Patrick John Earley, Alexander Gregory Stevens-Bracy
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Abstract
A filter for filtering storm water in an outfall pipe comprising: a line comprising an anchor attachment point at a proximal end of the line; and a plurality of individual treatment units (ITUs) securely connected in series to the line with a gap between adjacent ITUs, wherein each ITU has a size and shape capable of fitting inside the outfall pipe, and wherein each ITU comprises a mesh cage configured to filter contaminants out of the storm water.
Claims14
A filter assembly for filtering storm water in an outfall pipe comprising:
- a line including an anchor attachment structure capable of fixedly holding the filter assembly in position in the outfall pipe as storm water is flowing through the outflow pipe, said anchor attachment structure being proximal an end of the line and capable of being attached to a storm drain grate;
- and
- a plurality of individual treatment units (ITUs) sized and shaped to fit inside the outfall pipe, and are securely connected in series to the line with a gap between adjacent ITUs, said plurality of ITUs including:
- at least one ITU including a mesh cage having an upper open end and being capable of removing particulates as flowing stormwater enters the open end of the ITU and flows through the mesh cage;
- and
- at least one ITU including a mesh cage having an absorbent filtration material contained therein which is capable of contacting flowing stormwater and absorbing dissolved contaminants therefrom.
Dependencies are inferred from the claim text.