E - Fixed Constructions – 04 – D
Patent
E - Fixed Constructions
04
D
182/108
E04D 13/04 (2006.01)
Patent
CA 1242397
Abstract The invention relates to a waste screen for roof drain- age outlet, which is located substantially in the plane of the roof and consists of an outlet opening in the roof and a plate covering said opening, of which plate the circumference and vertical distance from the roof plane are such that at least at dimensioning flow amount air is prevented from being sucked in beneath the plate edge and, thus, the gap between the plate and roof plane constitutes the outlet port. One object is now to ensure that the water on its passage from the pitch to the outlet opening always passes the outlet port, which ensures that in dimensioning cases the filling degree for the outlet opening, and thus the outlet, is one, i.e. the outlet opening and subsequent pipe are entirely filled with water. For achieving this object, the screen extends about the circumference of the plate (4) and comprises a screen wall (7), which extends from the roof plane (1) to a plane above said plane through the circumference (circumferential edge) of the plate (4). A through-flow wall (11) is provided which extends from here to the upper surface of the plate (4), which walls (7 and 11) are joined along their upper surfaces which, thus, constitute an overflow edge inward to the upper surface of the plate (4).
452013
Ebeling Olavi
Mccarthy Tetrault Llp
Oy Kontekla
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