Patent ID: 8652323

Claim:
A combination filter and drainage system including a grate assembly, the grate assembly having a detent extending inwardly from a peripheral sidewall to form an upwardly-facing surface supporting a downwardly-facing surface of a removable drainage grate, the filter comprising: a one piece, enclosed loop frame sandwiched between the downwardly facing surface of the grate and the detent's upwardly facing surface, the frame encircling an interior space; a filter media having a sump area for collecting debris, an upper edge, and at least one pocket formed around said upper edge enclosing at least a portion of the frame; a first supportive webbing extending contiguously from a first side of the upper edge beneath the filter media sump area to a second side of the upper edge opposite the first side, the first supportive webbing terminating at opposing ends in loops of webbing hanging beneath the grate and within the frame's interior space; and a second supportive webbing extending contiguously from a third side of the upper edge beneath the filter media sump area to a fourth side of the upper edge opposite the third side, the second supportive webbing terminating at opposing ends in loops of webbing hanging beneath the grate and within the frame's interior space; wherein the first and second supportive webbings cross at a transverse intersection beneath the sump area to support the weight of any debris in the sump area and to dispose the loops at spaced locations in the interior space; wherein all portions of the filter remain substantially below an upwardly-facing surface of the grate in operable orientation.