Buffer volume
US5241863A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 23, 1991 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Dec 23, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/0627
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Apparatus for measuring the pressure within a fluid-conveying member of a mixture of a fluid and particulate solids comprises an outlet port in the fluid-conveying member, a buffer vessel having walls defining a buffer volume for containing a buffer medium, the buffer vessel having first and second end portions, and having a measuring outlet at the first end portion being in fluid communication with the outlet port of the fluid-conveying member. An impulse conduit has its first end in fluid communication with the second end portion of the buffer vessel and a fluid pressure measuring device is in fluid communication with the second end of the impulse conduit. A source of purging medium is in fluid communication with the second end portion of the buffer vessel. The flow of the purging medium is controlled to establish a back pressure in the buffer vessel sufficient to prevent particulate solids which flow into the buffer vessel from the fluid-conveying member from reaching the impulse conduit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.