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:
Jan. 07, 2003
Filed:
Jun. 28, 2001
Applicant:
Inventors:
Klaus Burkhardt, Kraichtal, DE;
Wolfgang Eckhardt, Karlsruhe, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 2/986 ; H01J 2/948 ;
U.S. Cl.
CPC ...
H01J 2/986 ; H01J 2/948 ;
Abstract
In order to improve the definition and the breakdown behavior in a tube neck ( ) that includes an anode cylinder ( ) and a focusing cylinder ( ), the tube neck ( ) is made of a non-conductive material, particularly a ceramic. The inner surface of the anode cylinder ( ) and the inner surface and the outer surface of the focusing cylinder ( ) are coated with an electrically conductive material ( ).