Patent information:

Patent:Utility 4,332,913
Patented:June 1, 1982
Applied:July 30, 1980
Title:Flux Combination of Barium Oxide and Potassium Feldspar for High Strength Alumina Porcelain Electric Insulators
Description:Porcelain composition with low shrinkage during firing
Category:Porcelain
Assigned to:Rosenthal Technik AG

Patentee Information:

BOCK, Peter Bayreuth,, Germany

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:144CERAMIC COMPOSITIONS Clay containing (e.g., porcelain, earthenware, etc.) And flint or feldspar Kaolin (e.g., ball clay, fire clay, etc.) containing;
Class:501COMPOSITIONS: CERAMIC
Subclass:127CERAMIC COMPOSITIONS Refractory Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containing Aluminum compound (e.g., clay, aluminium oxide, etc.);
Class:501COMPOSITIONS: CERAMIC
Subclass:153CERAMIC COMPOSITIONS Aluminum compound containing;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1

Drawing page 2

Page 2