| 摘要 |
A drain filtering device is disclosed. The improvement over the prior art [is comprised of] includes reducing the filter size from an elongated device that spans the length of [the gutter] drain system to a modular unit which is necessary only at the drain [sight] outlet. The [invention also includes] filtering device has an inclined upper face which is positioned on the upstream side of the [drain in the gutter and a downspout] channel of the drain and an attachment which locates the [invention] filtering device in the [gutter] channel such that the flow of filtered water passes through the [invention] device and into the [downspout] outlet. The debris that collects in the [gutter] channel is carried along the with the water until it makes contact with the inclined upper face and is forced up the incline until the overflow debris flows over the side of the [gutter] channel thereby cleaning the same and preventing the [downspout] outlet from becoming clogged.
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