Fluid injection system
US7926503B2 · kind B2 · utility
3Cited by
10References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 14, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 12, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8597
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The present invention is directed toward an apparatus for efficient, durable, reliable, and cost-effective fluid injection. In particular, the present invention provides an unpowered device for automatic fluid injection dictated by pressure differential in the line. More specifically, the present invention provides a device for injecting a degreasing chemical into air relief valves in municipal wastewater systems, which operates off of the differential pressure in the pumped lines resulting from the pump operating cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.