Global Patent Index - EP 0786789 A3

EP 0786789 A3 2000-06-21 - Yoke in particular for a trip device usable in a fault current protective switch

Title (en)

Yoke in particular for a trip device usable in a fault current protective switch

Title (de)

Joch für einen vorzugsweise in einem Fehlerstrom-Schutzschalter einsetzbaren Magnetauslöser

Title (fr)

Culasse en particulier pour un déclencheur utilisable dans un disjoncteur de courant de défaut

Publication

EP 0786789 A3 (DE)

Application

EP 96810588 A

Priority

DE 19602268 A

Abstract (en)

[origin: EP0786789A2] In conjunction with a movable armature the yoke (16) forms a magnetic circuit with two stationary pole pieces (13,14) spaced apart for the predetermined magnetic reluctance. The pole pieces are held together e.g. by spot welds (20) with an air gap acting as a diaphragm (15). A constant magnetic flux is supplied by a rectangular permanent magnet (17) having a flat end (18) on which one end of the armature rests while the trip device is closed. The other end rests on a flat surface (19) of a projection from one pole piece (13).

IPC 1-7 (main, further and additional classification)

H01H 71/32

IPC 8 full level (invention and additional information)

H01H 71/32 (2006.01)

CPC (invention and additional information)

H01H 71/321 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT CH DE FR GB IT LI NL

EPO simple patent family

EP 0786789 A2 19970730; EP 0786789 A3 20000621; EP 0786789 B1 20040211; EP 0786789 B2 20090114; AT 259539 T 20040215

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