Framed storm drain insert sediment filter

Details Framed storm drain insert sediment filter Framed storm drain insert sediment filter

2007-04-10

2007-04-10

Savage, Matthew O. (Department: 1724)

Liquid purification or separation

Structural installation

Grated inlet surface drain

C210S478000, C210S495000

Reexamination Certificate

active

10202200

ABSTRACT:
The new design has three primary features: (1) a rectangular collar having a centrally located circular cutout with sewn loops formed on the outer edges of the collar; (2) a filter bag having top edges attached to the rectangular collar along the periphery of the circular cutout so that the bag is inserted within the cutout and drops below the level of the collar; and (3) a heavy gauge steel wire inserted within the sewn loops of the rectangular collar forming a structural frame along the periphery of the rectangular collar. The structural frame is preferably formed with overlapping portions coupled together with a retaining means. The overlapping portions are slidably moved relative to one another to change the first and/or second dimension of the frame so that the filter can fit within catch basins openings of various measurements.

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U.S. Department of Transportation,Underground Disposal of Storm Water Runoff, Design Guidelines Manual, Feb. 1980, Table of Contents pp. xiv-xv, pp. 195-196, Appendix E-2 pp. E-2-1-E-2-6.

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