Flow rate measuring device
US7782461B1 · kind B1 · utility
8Cited by
20References
17Claims
0Family size
Inventors
Key dates
| Filing date | Apr 5, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Feb 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01F13/008
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A flow metering device and method for monitoring flow of a liquid, has a body with an inlet port and an outlet port. A flow chamber is formed therein between a pair of laterally placed windows in the flow chamber. A light emitting source placed in one of the windows and a light receiver placed in a second of the windows. The flow chamber has a flow restricting and light stopping element held therein and movable between a rest position and an operating position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.