Patent ID: 6749746
Filing Date: 2004-06-15
Classification: B01D,E03F

Abstract:
An assembly for mounting in a side wall opening of a catch basin side wall and convertible into a trap for reducing the amount of matter being carried out of the catch basin by drainage water exiting the catch basin, said assembly being sealingly attachable across said side wall opening and comprising:a first trap member having a first wall and en outlet opening formed in said first wall, said first trap member being sealingly attachable to an outlet pipe with said outlet opening in communication with the interior of the pipe; a second trap member releasably end sealingly engageable with said first trap member and having a second wall spaced from said first well when so attached; and a filter assembly releasably attachable to one of said first and second trap members, said filter assembly having a mounting ring and a filter bag made to capture matter entrained in drainage water, said filter bag having an open end portion connected to said mounting ring, said mounting ring being releasably attachable to one of said first end second trap members so that said mounting ring is inside the assembly for mounting in the side wall opening during use of the filter assembly; wherein, when the assembly is assembled, mounted in said side wall opening, and converted into a trap by providing an inlet opening in said second wall at a position below said outlet opening, there is defined a water flow path extending from the catch basin interior, through said inlet opening and then through said outlet opening, and said filter bag is positioned across said water flow path to capture matter entrained in drainage water flowing along said path, said filter assembly is positioned outside of a water containing chamber formed in said catch basin, and said filter bag is disposed downstream of aid outlet opening.