ELEMENT OF SURFACE RAINWATER DRAIN LINE (VERSIONS) Russian patent published in 2009 - IPC E01C11/22 

FIELD: transport.

SUBSTANCE: proposed element of the surface rainwater drain line comprises rain intake U-cross section chute made in polymer that features horizontal bearing outer ledges arranged atop of its side surfaces. Aforesaid chute comprises horizontal bearing part arranged at a distance from outer side of its bottom and central vertical lengthwise stiffening rib. Lateral transverse stiffening ribs are arranged over the chute length, from its horizontal bearing ledges to horizontal bearing part. One of the chute faces has a ledge and the other one has a mating recess. Nearby one of the chute edges, there are two horizontal branch pipes with blind bottom arranged on both lateral sides of the rainwater intake chute and, right behind it, there is one vertical drain cylindrical branch pipe with blind bottom arranged on that of the chute. In compliance with the first version of the invention, two horizontal drain branch pipes feature U-like cross section mating, in its top part, the appropriate lateral horizontal bearing ledge on its lower side, the inner surface of the said branch pipes receiving and attaching U-like ledge arranged on the end face of rainwater intake chute. In compliance with the second version, two horizontal drain branch pipes are cylindrical, while nearby the chute second edge, on its both sides, there are two aligned horizontal drain branch pipes with blind bottom that features U-cross section mating, at its top part, the appropriate lateral horizontal bearing ledge arranged on its lower side, the inner surface of the said branch pipes receiving and attaching U-like ledge arranged on the end face of rain water intake chute. In compliance with the third version, one of the horizontal drain branch pipes is cylindrical and the other one features U-cross section mating, at its top part, the appropriate lateral horizontal bearing ledge arranged on its lower side, the inner surface of the said branch pipes receiving and attaching U-like ledge arranged on the end face of rain water intake chute. In all cases the U-like ledge arranged on the end face of rainwater intake chute features the height not exceeding lateral horizontal bearing ledges and extends beyond for not more that the width of the lateral horizontal bearing ledge on its lower side. The chutes are proposed to be furnished with additional horizontal drain branch pipes.

EFFECT: perfected design of rainwater drain line with turns and branch pipes.

24 cl, 10 dwg