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A silt filtration system for use with storm water catch basins of the type which include a fixed frame with a drain opening at the top of the catch basin and a grate covering the drain opening and includes a base frame having a pair of end rails and a pair of side rails adapted to fit within the fix

A silt filtration system for use with storm water catch basins of the type which include a fixed frame with a drain opening at the top of the catch basin and a grate covering the drain opening and includes a base frame having a pair of end rails and a pair of side rails adapted to fit within the fixed frame at the top of the catch basin. The silt filtration system also includes a pair of lengthwise support bars or rods which are removably positioned within the base frame and a pair of transverse support bars or rods which are removably positioned over the lengthwise support bars and supported by the side rails. The lengthwise and transverse bars suspend a filter bag within the catch basin which includes a pocket at the top end for receiving the lengthwise support bars and the transverse support bars. The silt filtration system may include a deflector for deflecting silt and/or sediment and the like over the grate and into the filter bag. A method for installing the silt filtration system includes the steps of: lifting the grate from the drain and placing the base frame on the fixed frame of the catch basin, inserting the lengthwise support bars through the pockets of one pair of opposite sides at the top end of the filter bag and dropping the filter bag into the catch basin with the lengthwise bars positioned in the holders to support the sides of the bag. Further steps include: inserting the transverse support bars into the pockets of the remaining opposite sides at the top end of the filter bag, replacing the grate on top of the silt filtration system and installing the deflector on the grate.

대표청구항 ▼

[ I claim:] [18.]18. A method for capturing and removing silt in a street curb drain having a storm water catch basin including a fixed frame with a drain opening at the top of the catch basin and a grate covering the drain opening, the method comprising the steps of:a. providing a silt filtration s

[ I claim:] [18.]18. A method for capturing and removing silt in a street curb drain having a storm water catch basin including a fixed frame with a drain opening at the top of the catch basin and a grate covering the drain opening, the method comprising the steps of:a. providing a silt filtration system including a base frame adapted to fit within the fixed frame at the top of the catch basin and a pair of lengthwise support bars removably positioned on a plurality of brackets attached to said base frame and a pair of transverse support bars removably positioned transversely over said lengthwisc support bars; and a filter bag including two pairs of opposite sides and an open top end, each pair of sides having a sleeve at said top end for receiving said lengthwise support bars and said transverse support bars therethrough;b. lifting said grate from the drain;c. placing said base frame into said catch basin on said fixed frame on which said grate normally rests;d. inserting said lengthwise support bars through said sleeves;e. holding said lengthwise support bars and dropping said filter bag into said catch basin;f. positioning said lengthwise support bars into said brackets;g. inserting said transverse support bars through said sleeves and positioning said transverse support bars over said lengthwise support bars; andh. re-installing said grate over said drain opening whereby no portion of the system extends above said grate.