STORM-WATER TRAY MADE OF POLYMER Russian patent published in 2015 - IPC E01C11/22 

FIELD: construction.

SUBSTANCE: storm-water tray, having in cross section the U-shaped profile, with horizontal supporting external protrusions at top of its lateral sides is formed by sections, in each of which the horizontal discharge branches with solid bottom are located coaxially on both sides of the tray. They have profile identical to the profile of the tray itself. On one end of the storm-water tray along its contour there is a flanging outward, and on the second end of the storm-water tray along its contour there is a protrusion with inner groove, intended for placement and fastening of flanging. Horizontal outlet branches also have flanging outward. Lateral protrusions identical to flanging of its first end are made between the horizontal outlet branches along the contour of the outer surface of the storm-water tray. In order to provide more reliable connection of trays with each other, flanging of the first end of storm-water tray and its lateral protrusions are provided with protrusions-locks, and in the bottom of lateral sides of the groove of protrusion of the second end of storm-water tray there are holes for protrusions-locks.

EFFECT: providing possibility of varying the length of tray, if necessary, till the desired sizes without losing the ability to dock trays with each other and possibility of connecting side outlets of the formed channel of similar profile.

8 cl, 7 dwg