EP 0301935 B1 19930630 - HIGHLY SENSITIVE ELECTROMAGNETIC TRIPPING DEVICE AND PRODUCTION THEREOF
Title (en)
HIGHLY SENSITIVE ELECTROMAGNETIC TRIPPING DEVICE AND PRODUCTION THEREOF
Publication
Application
Priority
FR 8710720 A 19870728
Abstract (en)
[origin: EP0301935A1] The pole surface 10 of the armature 1 and the pole surface 14 of the vane 8 of an electromagnetic tripping device are treated in the same way. The surface roughness Ra is greater than or equal to 0.03 microns and less than 0.5 microns and a corrosion protection layer with a thickness less than 1 micron covers the surface. <IMAGE>
IPC 1-7
IPC 8 full level
H01H 51/06 (2006.01); H01H 50/16 (2006.01); H01H 71/32 (2006.01)
CPC (source: EP)
H01H 50/163 (2013.01); H01H 71/327 (2013.01)
Designated contracting state (EPC)
BE CH DE ES FR GB IT LI
DOCDB simple family (publication)
EP 0301935 A1 19890201; EP 0301935 B1 19930630; CN 1022002 C 19930901; CN 1031000 A 19890208; DE 3882099 D1 19930805; DE 3882099 T2 19940105; ES 2043867 T3 19940101; FR 2618941 A1 19890203; FR 2618941 B1 19950106; JP 2888838 B2 19990510; JP H01117225 A 19890510
DOCDB simple family (application)
EP 88401806 A 19880711; CN 88104668 A 19880727; DE 3882099 T 19880711; ES 88401806 T 19880711; FR 8710720 A 19870728; JP 18143988 A 19880720