Sanitary, storm and catch basin trap with filter insert
View Patent ↗A temporary trap having baskets and optionally filters in the baskets used in conjunction with curb inlets for sewer systems to keep debris from being washed into the sewer during construction of roads and sewers. The trap is a box, typically rectangular, square or round, with baskets having a plurality of holes therein for allowing water to pass therethrough while trapping debris therein. The trap is inserted into a curb inlet by lifting the grate off the curb inlet frame, inserting the trap and then replacing the grating. After a rain the baskets and filters may be cleaned out and reused. Optionally, when the construction project is finished the grate is lifted off the curb inlet frame and the trap removed. An optional cloth filter for insertion into the trap filters finer debris from entering the sewer system. The trap has an overflow opening in case the trap becomes clogged.
1. A catch basin curb inlet trap comprising,
a trap insert frame having, a top, a bottom, a front side, a back side, a right side and a left side, the front side, right side, and left side having at least one aperture therein to let water pass therethrough and preventing debris from passing therethrough,
a flange around the perimeter of the top of the trap insert frame for engaging a curb inlet frame and holding the box in place,
at least one internal flange on the inside perimeter of the trap insert frame for supporting a basket having a corresponding flange at the top outside perimeter of the basket, the basket having a plurality of apertures for allowing water out while blocking debris from passing therethrough,
the top portion of the trap insert frame having right and left side walls with a slope matching a curb inlet frame into which the trap insert frame is inserted, the front wall a different height than the rear wall.
2. A catch basin curb inlet trap as in claim 1 wherein,
a curb box blocker extends up from the flange on the back wall to block water flow from entering the catch basin by entering a curb inlet box thereby bypassing the catch basin inlet trap.
3. A catch basin curb inlet trap as in claim 1 wherein,
a filter is inserted into the basket to block smaller debris from entering the catch basin.
4. A catch basin curb inlet trap as in claim 1 wherein,
three baskets to catch debris are used, a right side basket a left side basket and a center basket.
5. A catch basin curb inlet trap as in claim 4 wherein,
three internal flanges on the inside perimeter of the trap are used wherein the center internal flange is set lower for channeling water and debris toward the center basket.
6. A catch basin curb inlet trap as in claim 1 wherein,
the basket has a handle for ease of lifting the basket out of the trap insert frame.
7. A catch basin curb inlet trap as in claim 1 wherein,
the trap insert frame has a curb box blocker extending upward from the back wall to block water from entering a curb box.
8. A catch basin curb inlet trap as in claim 7 wherein,
a shelf extends between the back wall of the trap insert frame to the curb box blocker.
9. A catch basin curb inlet trap as in claim 8 wherein,
an aperture in the self allows water to flow down behind the back wall of the trap insert frame.
10. A catch basin curb inlet trap as in claim 9 wherein,
a gusset extends from the back wall of the trap insert frame to the shelf to help support the shelf and the curb box blocker.
11. A catch basin manhole trap comprising,
a trap insert frame having, a circular top, a circular bottom, a cylindrical side wall with apertures therein to let water pass therethrough and preventing debris from passing therethrough,
a flange around the circumference of the top of the trap insert frame for engaging a curb inlet frame and holding the box in place,
a shelf extending between cylindrical walls having a flange for engaging a basket having a flange on the top,
the cylinder wall having an overflow aperture at the top of the wall for allowing water and debris to exit the box if the apertures in the cylindrical wall and the bottom become clogged with debris or the water flow is too great for the apertures,
the top portion of the trap insert frame between the flange and the cylinder wall having a slope matching a manhole frame into which the box is inserted.
12. A catch basin curb inlet trap as in claim 11 wherein,
a filter is inserted into the basket to block smaller debris from entering the catch basin.