Filter berm
US5948250A · kind A · utility
53Cited by
18References
22Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Apr 6, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/924
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A portable berm for use in and out of doors. The berm includes a impervious flexible synthetic floor which has a berm wall formed about its periphery. The berm wall comprises a plurality of elongated plastic strips which are attached to the floor along their inner and outer edges each forming a cavity which extend around the floor. A plurality of openings are formed in the strips adjacent at least their edges. An adsorbent and absorbent hydrophobic material which allows water to pass through but absorbs chemical contaminants is positioned within the cavities to extend about the floor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.