Patent ID: 7276156

Claim:
A filter for a storm drain wherein the filter is designed to be installed in the storm drain and to filter trash and debris from water passing through the storm drain, the filter comprising: a perforated panel having a main section, the main section being generally curved shape and including a bottom and a top; an array of openings formed in the main section, the openings including a first lower set of openings disposed in a lower portion of the main section and a second set of openings formed in an upper portion of the main section and wherein the openings of the first set are smaller than the openings of the second set; a series of ribs formed in at least the main section, the ribs being spaced apart and extending across the main section; and a pair of side flanges disposed on opposite sides of the panel, each flange extending outwardly from the main section and including a generally flat surface for abutting against a sidewall of the storm drain.