Process and device for measuring moisture in powders and grains as well as in the dry matter of liquids
US6250139A · kind A · utility
Inventor
Key dates
| Filing date | Jun 15, 2000 |
| Grant date | Jun 26, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N5/045
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for measuring the moisture content in powders or other granular products or for measuring the dry matter of liquid products. The method includes the steps of placing the product on a scoop (8) and weighing it, then inserting the product on the scoop in a sealed glass tube (7), passing a dry gas stream to evacuate the product water content outside of the tube, such that the elimination step is carried out in a closed circuit independently of ambient air in the place where the product is being analyzed before measuring the drained product. The invention also relates to a measuring apparatus for implementing the method. This apparatus includes the sealed glass tube, a dry gas source, one or several sheaths or cells which house the glass tube and which are used for draining the product, gas flow regulators (2), one or several manometers (13), and a pump (14).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.