Stormwater inlet filter
AssigneeTom Hegemier
InventorsThomas E. Hegemier, Gerry R. Clayton, Stacy J. Gowing
Life of this patent
Estimating the term…
Abstract
A filter without moving parts is placed in a storm sewer inlet that conveys stormwater flows. The filter is designed to fit a storm sewer inlet and rests on angle iron supports. The supports are attached to the storm sewer inlet walls below the inlet opening so the filter does not pond stormwater runoff in the contributing streets. The filter is composed of a perforated aluminum section riveted to a tubular steel frame. A weir and hydraulic opening for flow conveyance is provided adjacent to the filter. A grate type rack is constructed across the hydraulic opening. At least one handle is attached to the filter on the side of the inlet opening.
Claims3
A filter without moving parts comprising a filter frame having a filter compartment and a hydraulic opening mounted in a storm sewer inlet opening on angle iron supports that are located below the storm sewer inlet opening to filter storm water runoff by passing the runoff through a perforated aluminum filter in the filter compartment, said angle iron supports are situated at an angle to support the frame with the filter compartment being closer to the inlet opening and lower than the hydraulic opening, a partition weir separates the filter compartment and the hydraulic opening and retains pollutants in the filter compartment with runoff which has not passed through the perforated filter flowing over the weir and into the hydraulic opening, said hydraulic opening is grated with a smooth steel bar rack, said frame has at least one handle which is used to withdraw the filter frame from the inlet for maintenance and cleaning purposes.
Dependencies are inferred from the claim text.