Patent · US Expired

Apparatus for discontinuous mixing of at least two materials

US4190371A · kind A · utility

17Cited by

6References

6Claims

0Family size

Assignee

Draiswerke GmbH · DE

Inventors

Herbert Durr · Bergneustadt, DE
Helmut Muller · Bensberg, DE

Key dates

Filing date	Dec 19, 1978
Grant date	Feb 26, 1980
Priority date	—
Expiry date	Dec 19, 1998

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01F27/84
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An apparatus for discontinuous mixing of substances, one of which is a liquid and especially suitable for the mixing of thixotropic materials. The mixer has a high speed rotor which cooperates with a more slowly rotating stator. Both rotor and stator are provided with teeth disposed on mutually concentric circles. When the teeth move past one another, shearing slots are formed. The drive shaft carrying the stator also carries at least one radially extending arm on which is mounted a wall scraper whose angle of attack with respect to the wall may be changed by rotation about an internal axis.

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