公开(公告)号：US5958226A

公开(公告)日：1999-09-28

申请号：US135909

申请日：1998-08-18

Applicant: Charles R. Fleischmann

Inventor： Charles R. Fleischmann

IPC: B01D29/05 ,  E03F1/00 ,  E03F5/06 ,  C02F9/00

CPC classification number: E03F1/00 ,  B01D29/055 ,  E03F5/0404 ,  B01D2201/0407 ,  B01D2201/48

Abstract: A storm drain filter is sized to cover the opening of a storm drain. It includes a top debris tray removably positioned within a bottom media tray. Each tray includes a peripheral trough surrounding a central overflow opening. The top tray is shorter in height than the bottom tray, so that a filter media receiving chamber is defined between the top tray and the bottom tray. Filter media is positioned in the filter media receiving chamber. A handle is attached across the central overflow opening of the top tray. In a first embodiment, the bottom surfaces of the top and bottom trays are perforated. In a second embodiment, the inner walls of the top and bottom trays are perforated. In either embodiment, water flowing into the filter is distributed around the top trough, passed through the perforated surface of the top tray, the filter media, the perforated surface of the bottom tray, and into the storm drain. Hydrocarbons and other contaminants are filtered by the filter media. Large particles and debris are collected in the trough of the top tray. The filter may be easily cleaned by lifting out the top tray, shaking out the debris, and replacing it in the bottom tray. The removable top tray also enables easy inspection or replacement of the filter media.

Abstract translation: 风雨排水过滤器的大小可以覆盖暴风雨的开口。 它包括可拆卸地定位在底部介质托盘内的顶部碎屑托盘。 每个托盘包括围绕中央溢流开口的周边槽。 顶部托盘的高度低于底部托盘，从而在顶部托盘和底部托盘之间限定了过滤介质容纳室。 过滤介质位于过滤介质接收室中。 手柄连接在顶部托盘的中央溢流开口上。 在第一实施例中，顶部和底部托盘的底部表面是穿孔的。 在第二实施例中，顶部和底部托盘的内壁是穿孔的。 在任一实施例中，流入过滤器的水分布在顶部槽周围，穿过顶部托盘的穿孔表面，过滤介质，底部托盘的穿孔表面，并进入暴风雨排水口。 碳氢化合物和其他污染物被过滤介质过滤。 大颗粒和碎屑被收集在顶部托盘的槽中。 可以通过抬起顶部托盘，摇晃碎片并将其更换在底部托盘中来清洁过滤器。 可移动的顶部托盘也可以方便地检查或更换过滤介质。