Global Patent Index - EP 0936636 A3

EP 0936636 A3 2000-08-16 - Electromagnet

Title (en)

Electromagnet

Title (de)

Elektromagnet

Title (fr)

Electroaimant

Publication

EP 0936636 A3 (DE)

Application

EP 98124681 A

Priority

DE 19805171 A

Abstract (en)

[origin: EP0936636A2] The actuator has an opening magnet (22) and a closing magnet (23) with coils (4,12) within cores (5,11). The produced magnetic field (20,21) operates upon an armature plate (10). The core elements have diffusion directions (1-3,17-19) with different magnetic materials (6-8,13-15). The materials which are nearer to the coil in the diffusion direction have a smaller saturation flux density, which is achieved with a smaller field strength than the materials further from the coils.

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

H01F 7/08; H01F 3/10

IPC 8 full level (invention and additional information)

F01L 9/04 (2006.01); H01F 3/10 (2006.01); H01F 7/08 (2006.01)

CPC (invention and additional information)

F01L 9/04 (2013.01); H01F 3/10 (2013.01); H01F 7/081 (2013.01); H01F 2003/106 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 0936636 A2 19990818; EP 0936636 A3 20000816; DE 19805171 A1 19990819; DE 19805171 C2 20000803

INPADOC legal status


2000-11-29 [18W] WITHDRAWN

- Date of withdrawal: 20000930

2000-08-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

2000-08-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI

1999-08-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

1999-08-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Free text: AL;LT;LV;MK;RO;SI