Patent · US Active

Rheometer

US8132445B2 · kind B2 · utility

1Cited by

7References

12Claims

0Family size

Assignee

BASF SE

Inventors

Martin Laun · Mannheim, DE
Jürgen Pfister · Speyer, DE
Rene Lochtman · Mannheim, DE
Günter Oetter · Bischofswerda, DE
Claus Gabriel · Ludwigshafen am Rhein, DE

Key dates

Filing date	Aug 16, 2007
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Oct 14, 2028

Classification

Technology area (CPC G)Physics
CPC primaryG01N2011/0026
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a rheometer having a rotatable shaft (1) on which a rotor plate (2) is fastened, and having a measuring instrument (10) for measuring torques exerted on the rotor plate (2) by a substance (6) to be studied during rotation of the shaft (1), a first measurement gap (5) for holding the substance (6) to be studied being formed between a first side (3) of the rotor plate (2) and a first shear face (4) and a second measurement gap (9) for holding the substance (6) to be studied being formed between a second side (7) of the rotor plate (2), opposite the first side, and a second shear face (8). The rheometer contains a magnet for generating a magnetic field in the first and second measurement gaps (5, 9).

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