EP 0855729 B1 20010328 - High sensitive relay and method of coating contact surfaces of a highly sensitive relay
Title (en)
High sensitive relay and method of coating contact surfaces of a highly sensitive relay
Title (de)
Hochempfindliches Relais und Verfahren zum Beschichten von Kontaktoberfläche eines hochempfindliches Relais
Title (fr)
Relais à haute sensibilité et procédé de revêtement de surfaces de contact d'un relais à haute sensibilité
Publication
Application
Priority
FR 9700798 A 19970124
Abstract (en)
[origin: EP0855729A1] The relay has a permanent magnet (7) which provides an attractive force used to hold the armature (6) in place while a fault current through the coil (10) on the U-core acts to oppose the permanent field and allows displacement of the armature under the pull of a spring (8). The arm (5a) of the core acts as a pivot on the contact surface (6a) of the armature or the contact surface and both poles of the core are covered with carbon in the form of diamond. The layer is 0.5-2 mu m thick and has a structure which is 2/3 diamond. The deposition is achieved by epitaxy chemical vapour deposition.
IPC 1-7
IPC 8 full level
H01H 71/32 (2006.01)
CPC (source: EP)
H01H 71/327 (2013.01)
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 0855729 A1 19980729; EP 0855729 B1 20010328; AT E200163 T1 20010415; DE 69800631 D1 20010503; DE 69800631 T2 20010705; ES 2157641 T3 20010816; FR 2758904 A1 19980731; FR 2758904 B1 19990423; HU 222292 B1 20030628; HU 9800122 D0 19980330; HU P9800122 A2 19980828; HU P9800122 A3 19991129
DOCDB simple family (application)
EP 98400006 A 19980105; AT 98400006 T 19980105; DE 69800631 T 19980105; ES 98400006 T 19980105; FR 9700798 A 19970124; HU P9800122 A 19980123