Diaphragm-type pressure sensors for slurries and similar flows
US6912909B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 2004 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Jul 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A diaphragm-type sensor arrangement to measure the flow pressure in a main pipe. The arrangement includes a connecting line in fluid communication with the main line and a housing with a chamber. The chamber is isolated from fluid communication with the connecting line by a flexible diaphragm and filled with a second fluid. In use, the diaphragm is displaced by pressure changes in the connecting line which in turn displaces the second fluid in the housing chamber to activate a pressure reading device. The sensor arrangement is particularly adapted for use with slurry flows of particulate solids in a liquid carrier and further includes a reaming member to breakup any consolidated plugs or clogs of solid particles in the connecting line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.