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. 12, 2017
Filed:
Dec. 06, 2011
Thomas Westebbe, Berlin, DE;
Yu Zhang, Xiaogan Hubei, CN;
Eric Liu, Xiaogan Hubei, CN;
Jiaping Hong, Xiaogan Hubei, CN;
Thomas Westebbe, Berlin, DE;
Yu Zhang, Xiaogan Hubei, CN;
Eric Liu, Xiaogan Hubei, CN;
Jiaping Hong, Xiaogan Hubei, CN;
EPCOS AG, Munic, DE;
Abstract
A multi-step tube () of a ceramic material comprises a tube body () of the ceramic material having an inner wall () located inside the tube body (). A surface of the inner wall () is formed with a plurality of steps (). The steps () are formed to extend differently far inside the tube (). A multi-layered gas discharge tube comprises the multi-step tube (). An inner electrode () is disposed on a step (), and an outer electrode () is disposed on an outer surface () of the tube body (). A disc () is partially placed on a step () and the inner electrode () between the inner electrode () and the outer electrode () so that, in case of an electrostatic discharge, the discharge will only take place in the center of the multi-step tube () and not at the border of the isolated ceramic disc ().