US 6,631,588 B1 · Clog-free roof drain cover

Abstract

A clog-free roof drain cover assembly includes a first drain cover fixed over the drain, and a second drain cover which is vertically movable relative to the first drain cover. The second drain cover includes a base provided with weep holes, a skirt located above the weep holes, a hat-shaped portion provided with slots, and a foam ring about the hat-shaped portion. During light rains, water flows under the skirt and through the weep holes, into the first drain cover, and into the drain. During heavy rains, debris becomes caught in the debris skirt. When the pooling water reaches a predetermined level, the foam ring floats, raising the second drain cover, which causes the debris skirt to lift the debris about the drain and permit water to pass freely underneath, into the first drain cover, and down the drain.

Claims20

Dependent claims

A drain cover assembly for a water drain on a roof, comprising:

a) a first drain cover adapted to be fixed over the drain;
and
b) a second drain cover coupled to said first drain cover such that said second drain cover is vertically movable relative to said first drain cover, said second drain cover including an upstanding portion defining a plurality of water passage openings and provided with a debris skirt, and an element having a density less than water, said element having sufficient structure to cause said second drain cover to rise when a water level on the roof exceeds a vertical location of said element.

Dependencies are inferred from the claim text.

Clog-free roof drain cover

Life of this patent

Clog-free roof drain cover

Life of this patent

Abstract

Claims20