Flow control system for a detention pond
US7985035B2 · kind B2 · utility
11Cited by
15References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 30, 2009 |
| Grant date | Jul 26, 2011 |
| Priority date | — |
| Expiry date | Jan 20, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/86252
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An application for a flow control system includes a movable plunger held within a stationary riser, the stationary riser being in fluid communication with a drainage system. The movable plunger is buoyant, assisted by one or more attached floats such that, when the liquid level around the flow control system increases to a pre-determined level, the movable plunger lifts due to the buoyancy, thereby maintaining the pre-determined distance between the surface level and a bottom surface of the movable plunger, keeping the flow rate at an approximately constant level independent of the water level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.