The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 28, 1981
Filed:
Jul. 12, 1978
Friedrich Kaufmann, Karlsruhe-Waldstadt, DE;
Siegfried Weisenburger, Au, DE;
Herbert Koschorke, Stutensee-Friedrichstal, DE;
Hartmut Seiffert, Karlsruhe, DE;
Kernforschungszentrum Karlsruhe GmbH, Karlsruhe, DE;
Abstract
Method and device for effecting radioactive offgas filtration by means of a mass of filter material, and filter material regeneration, at temperatures in excess of 500.degree. C. in which substances to be filtered impinge on the filter material mass in at least one direction, filtration being effected by removing a layer of contaminated filter material in the direction opposed to the direction in which substances impinge on the filter material in order to remove the filtered substances for filter cleaning. Removal of the contaminated filter material is carried out by adding a fluxing agent to the filter material at operating temperatures for regenerating the filter material by means of a cleanup melt. This fluxing agent may be a glass frit, an alkali hydroxide or an alkali or alkaline earth metal salt.