Curb opening filter
View Patent ↗A curb opening filter apparatus is provided for removably attaching over a curbside opening for a storm drain. The filter apparatus has a frame which can be interconnected with similar frames to adjust for different size storm drain openings. The curb opening filter has a system for vertically attaching a filter apparatus over the curbside opening.
1. A curb opening filter comprising:
at least one frame member, each of said at least one frame member having at least one open area therethrough, and frame having two end portions, at least one end portion having a connecting joint member thereon for removably frame connecting to a second frame member of said at least one frame member;
attaching means for supporting said at least one frame member upright over a vertical side curb opening, said attaching means including a generally vertical frame stiffening post removably attachable to said at least one frame member; and
an elongated strut member having an opening in one end thereof loosely fitted over said post thereby allowing said strut member to tilt and wedge thereon when said strut other end portion is positioned inside a curb opening against an inside surface thereof; and
a fabric filter mesh covering one side of said at least one frame member;
whereby a curb opening filter can be removably attached over a curbside opening for a storm drain.
2. The curb opening filter in accordance with claim 1 in which said frame connecting joint member is a tenon shaped to interlock with a second frame connecting joint member corresponding mortise.
3. The curb opening filter in accordance with claim 1 in which said frame connecting joint member on one end portion is a tenon and on the other end portion is a mortise each shaped to interconnect with a second frame member.
4. The curb opening filter in accordance with claim 1 in which one end portion of said frame connecting joint member forms a dovetail joint with a second frame connecting joint member.
5. The curb opening filter in accordance with claim 1 in which one end portion of said frame connecting joint member forms has a vertical ridge that slidable attaches to a vertical groove of a second frame member.
6. The curb opening filter in accordance with claim 1 in which said frame stiffening post includes a pair of snap fasteners for attaching said post at least one frame member.