Patent ID: 8323485
Filing Date: 2012-12-04
Classification: E03F

Abstract:
1. A filter system for a storm drain, the storm drain having a plurality of side walls defining an inlet and a grate covering the inlet, the filter system configured to receive stormwater having debris and to separate at least a portion of the debris from the stormwater to produce filtered stormwater, comprising: a pervious paver having a feed side and a permeate side, the pervious paver being configured to receive stormwater on the feed side and to retain at least a portion of the debris on the feed side, the filtered stormwater being formed from the stormwater that passes from the feed side to the permeate side, the pervious paver including an aperture; a frame assembly configured to support the pervious paver adjacent to the inlet such that a recess is formed between the grate and the pervious paver, the recess being configured to contain the at least a portion of the debris to allow for removal of the at least a portion of the debris from the pervious paver when the grate does not cover the inlet; and an overflow assembly including a vertically-oriented overflow pipe that extends through the aperture, the overflow pipe being free from any bends and having a single inlet opening on a first end portion of the overflow pipe and a single outlet opening on an opposing second end portion of the overflow pipe, the overflow assembly further including a valve assembly having: