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:
Sep. 09, 2003
Filed:
Feb. 26, 2002
Kazuhiko Machida, Nagano, JP;
Shinko Electric Industries Co., LTD, Nagano, JP;
Abstract
To extend the life of electric discharge and enhance the characteristic of electric discharge in the life test in a gas filled switching electric discharge tube. A gas filled switching electric discharge tube comprises: a cylindrical body ( ) made of insulating material; two electrodes ( ) for airtightly closing both ends of the cylindrical body; an electric discharge gap, an airtightly closed space formed in the cylindrical body including the electric discharge gap being filled with gas; metallized faces formed on both end faces of the electrodes of the cylindrical body; first trigger wires ( ) formed on an inner wall face of the cylindrical body, connected with the metallized faces; and second trigger wires ( ) formed on the inner wall face of the cylindrical body, not connected with the metallized faces, wherein the first electrode face and second electrode face are plated with copper or silver.