Storm drain liner
US6306293A · kind A · utility
22Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Jun 30, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F5/0404
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A drain filtering system is disclosed, comprising a filter placed within a basket which is suspended from frame positioned underneath a drain grate atop the inlet to a storm drain. The filter is constructed from materials which filter out heavy metals and hydrocarbons from the water passing through. The filter also has overflow outlets to prevent back-up of storm water during periods or heavy rain. The basket is constructed from a corrosion resistant material, preferably high density polyethylene which can withstand the extreme pressures exerted by waste and water collected within the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.