Flow control system for a detention pond
US9051702B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2013 |
| Grant date | Jun 9, 2015 |
| Priority date | — |
| Expiry date | Oct 18, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG05D7/0166
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A flow control system of the present invention includes a movable riser slideably engaged with a stationary riser and having a flange. The stationary riser is interfaced to a downstream drainage system. The movable riser is made buoyant by one or more floats such that, as the water level around the flow control system changes, the movable riser follows the changes based upon the buoyancy of the float(s), thereby maintaining the flange at a constant depth. The gap between an upper edge of the flange and the inner perimeter of the stationary riser coupled with an area of the gap defines a flow rate that is constant. Vents couple an inner cavity of the movable riser to air above the fluid, the inner cavity being in communication with the drainage system as well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.