Patent ID: 7455766

Claim:
A system for filtering debris carried by stormwater flowing through a gutter inlet and gravitationally therefrom into a catch basin therebelow, the filtering system comprising: a filter device configured in conformity to the gutter inlet to substantially cover the gutter inlet exteriorly of the catch basin without passing through the gutter inlet into the catch basin; the filter device being comprised of filtration media selected to prevent passage through the filter device of soil, silt, leaves, sticks, and other stormwater-carried debris, while permitting substantially free passage through the filter device of stormwater; and a retainer device for maintaining the filter device in substantially covering relation to the gutter inlet; the retainer device configured to extend from the filter device through the gutter inlet and to depend gravitationally downwardly therefrom within the catch basin; the retainer device being weighted sufficiently to gravitationally pull the filter device securely against the gutter inlet to resist dislodgement under the forces of stormwater flowing therethrough.