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:
Oct. 20, 1981
Filed:
Jun. 25, 1979
Applicant:
Inventors:
Theodore O Sokoly, Racine, WI (US);
John Niedzialkowski, Milwaukee, WI (US);
Assignee:
McGraw-Edison Company, Rolling Meadows, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
H01B / ;
U.S. Cl.
CPC ...
252518 ; 252519 ; 252520 ; 252521 ; 338 20 ;
Abstract
The method of manufacturing metal oxide varistors wherein pressed blocks of selected mixtures of metal oxide powders and additives are joined to form a single varistor unit by vertically stacking and firing the blocks at a high temperature. Sintering of these stacked blocks during the firing cycle results in a strong mechanical and electrical bond between the adjacent blocks in the stack.