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:
May. 20, 2003
Filed:
Mar. 06, 2000
Eberhard Lehmann, Kiel, DE;
Klaus Scheibe, Kiel, DE;
Joachim Schimanski, Detmold, DE;
Jörg Tews, Grebin, DE;
Martin Wetter, Detmold, DE;
Phoenix Contact GmbH & Co., Blomberg, DE;
Abstract
An overvoltage protection device ( ) with a first electrode ( ) which has a first arcing horn ( ), with a second electrode ( ) which has a second arcing horn ( ), with an air-breakdown spark gap ( ) which is active between the arcing horns ( ), and with a housing ( ) which accommodates the electrodes ( ), has the two arcing horns ( ) shaped and arranged relative to one another such that they diverge from a lower ignition area ( ) to their outer ends ( ), so that the air-breakdown spark gap ( ) widens outwardly, proceeding from the ignition area ( ). The overvoltage protection device ( ) has a current carrying capacity which is as high as possible and a high network follow current extinction capacity with an overall height which is as small as possible by the first arcing horn ( ) being made in the shape of a truncated cone and the second arcing horn ( ) being located concentrically around the first arcing horn ( ).