Global Patent Index - EP 0242590 B1

EP 0242590 B1 19890607 - GAS-DISCHARGE SURGE ARRESTER

Title (en)

GAS-DISCHARGE SURGE ARRESTER

Publication

EP 0242590 B1 19890607 (DE)

Application

EP 87104006 A 19870318

Priority

DE 3613582 A 19860422

Abstract (en)

[origin: US4831485A] An overvoltage arrester for high surge currents having an increased useful life while maintaining suitable electrical properties comprising a pair of electrodes secured to an insulator housing in confronting, spaced relation to provide a discharge gap, the electrodes being covered with a metallic activation compound comprising metallic barium aluminum dispersed in a matrix of metallic aluminum, the matrix being fused onto the confronting surfaces. Additional metal additives may be embedded or alloyed with the metals of the activation layer.

IPC 1-7

H01T 1/22

IPC 8 full level

H01T 4/12 (2006.01); H01T 1/22 (2006.01)

CPC (source: EP US)

H01T 1/22 (2013.01 - EP US)

Citation (examination)

EP 0138082 A1 19850424 - SIEMENS AG [DE]

Designated contracting state (EPC)

CH DE FR GB IT LI

DOCDB simple family (publication)

EP 0242590 A1 19871028; EP 0242590 B1 19890607; DE 3760233 D1 19890713; JP S62256393 A 19871109; US 4831485 A 19890516

DOCDB simple family (application)

EP 87104006 A 19870318; DE 3760233 T 19870318; JP 9611587 A 19870417; US 19858988 A 19880523