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:
May. 05, 1981
Filed:
Nov. 26, 1979
Applicant:
Inventor:
Axel Eschner, Wiesbaden, DE;
Assignee:
Didier-Werke AG, Wiesbaden, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
264 63 ; 106 60 ; 264 65 ;
Abstract
There is disclosed a process for the production of a ceramic heat-retaining brick based on olivine which comprises shaping and drying a mixture of granular material and a binding agent. The granular material includes powdered iron having a particle size of less than 0.1 mm in an amount of between 5 and 20% by weight of the brick. The brick is subsequently burnt in an oxidizing atmosphere and the powdered iron is substantially converted to iron oxide.