Patent · US Expired

Method of measuring the moisture content in flowable materials and apparatus for carrying out the method

US4186592A · kind A · utility

11Cited by

6References

11Claims

0Family size

Inventors

Hubert Eirich · Walldürn, DE
Walter Eirich · Walldürn, DE
Paul Eirich · Walldürn, DE
Josef Hasenhundl · Ahorn, DE
Adolf Spengler · Külsheim, DE

Key dates

Filing date	Feb 14, 1978
Grant date	Feb 5, 1980
Priority date	—
Expiry date	Feb 14, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01F23/565
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and apparatus for measuring water content of flowable mixtures such as casting sand, concrete, or chemical mixtures. The mixture is agitated in a mixing tray (10), then a moisture sensing measuring probe (7) is inserted into the mix for taking a measurement. The probe is then withdrawn from the mix and cleaned, as by brushing, stripping, blasting with air, or spraying with liquid. A temperature sensor (8 ) may also be inserted into the mix with the measuring probe. The probe is mounted in a lifting unit (5) which normally holds the probe in a cooling and cleaning casing (6) out of the mix. The unit can also locate the probe at different selected levels within the mix.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.