Storm drain sediment filter
US10384155B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 20, 2014 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Dec 31, 2037 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE03F5/0404
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A storm drain sediment filter that can be adapted to cover a catch basin and be held in place by a perforated grate. In one embodiment, the filter includes a frame including four L-shaped rigid members, each of which is provided with at least two spaced apart retaining members. The four L-shaped rigid members are arranged such that a rectangular frame is formed having a total of four overlapping sections. The retaining members engage one of the overlapping portions of the frame but slidably receives the other. No retaining ends are formed at the distal end of the slidably engaged L-shaped members to serve as a sliding boundary. Instead, the dimensions of the filter bag are such that the filter bag serves to define the maximum dimension of the frame and thereby maintain the overlapping L-shaped rigid members in slidable engagement with each other. A circular embodiment is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.