Patent ID: 6869526
Filing Date: 2005-03-22
Classification: C02F,E03F

Abstract:
1. In a storm drain having an open top catch basin and a grate that covers the open top catch basin, a filter apparatus comprising: (a) a filter cage that defines an open central conduit that passes unobstructed through said filter cage, said filter cage comprising: (b) a filter cartridge positioned within said filter pocket and supported by said filter cage encircling at least a portion of said open central conduit; and (c) suspension elements connected to said grate and said cage that suspend said filter cage below said grate, wherein said filter apparatus is configured such that water entering from around the periphery of the grate flows through said sloped walls to be filtered through said filter cartridge, and during flood conditions excess water flows along said sloped walls and through said open central conduit bypassing said filter cartridge.