Patent · US Expired

Apparatus for plasma treatment of fine grained materials

US5670065A · kind A · utility

16Cited by

7References

18Claims

0Family size

Assignee

Buck Werke GmbH & Co. · DE

Inventors

Herrmann Bickmann · Ditzingen, DE
Klaus Nauenburg · Hanau, DE
Juergen Weichart · Balzers, LI

Key dates

Filing date	Jul 5, 1995
Grant date	Sep 23, 1997
Priority date	—
Expiry date	Jul 5, 2015

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2219/187
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

"An apparatus for plasma treating fine-grained materials, having a receptacle that can be evacuated and that accepts and agitates the materials to be treated, and having an electromagnetic device that comprises an excitation device and electrodes and to activate a process gas filling the space of the receptacle means to form a plasma, wherein the receptacle has a conveyor which conveys the material from one end to another end and is configured for continuous admission and discharge of the material and admission and discharge of the process gas, but that is otherwise hermetically closed, and at which or in which the electromagnetic excitation device that effects the plasma formation within the conveyor is arranged."

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