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:
Jun. 20, 1989
Filed:
Nov. 30, 1987
Applicant:
Inventor:
Klaus Kalwar, 4803 Steinhagen, DE;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01T / ; F27B / ;
U.S. Cl.
CPC ...
361230 ; 250324 ; 264 61 ;
Abstract
A corona discharge electrode has a core made of a malleable, at least partially electrically conductive graphite material. The core is coated by a relatively thin layer of a dielectric material of an oxide free ceramic such as silicon nitrite, boron nitrite or aluminum nitrite. The density of the dielectric layer is at least 95% of the theoretically attainable density.