Centrifugal permeameter
US6935159B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2003 |
| Grant date | Aug 30, 2005 |
| Priority date | — |
| Expiry date | Apr 23, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/241
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a sample chamber for a centrifugal permearmeter for testing permeant conductivity of a porous sample, the sample chamber comprising a rigid outer sleeve; a resilient inner sleeve mountable over the sample and within the rigid outer sleeve; fluid inlet means for introducing fluid between the inner and outer sleeves; sealing means acting between the inner and outer sleeves for maintaining the fluid therebetween; a porous top member for mounting over a top face of the sample and supplying the permeant to the sample, the top being movable with the sample to maintain a radially outward permeant force on the sample as the sample is being spun in the centrifugal permeameter; a permeant supply for supplying the permeant to the porous top; and, a permeant accumulator for receiving and accumulating permeant which has passed through the sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.