Global patent index - EP 0981138 A3

EP 0981138 A3 2000-03-15 - Electromagnetic arrangements

Title (en)

Electromagnetic arrangements

Title (de)

Elektromagnetische Anordnungen

Title (fr)

Dispositifs électromagnétiques

Publication

EP 0981138 A3 (EN)

Application

EP 99305843 A

Priority

GB 9817715 A

Abstract (en)

[origin: EP0981138A2] An electromagnetic arrangement comprises an armature (12) mounted within a housing (5) and carrying an electrically energisable coil (14). A core (8) slides inwardly of a hollow space (10) against a compression spring (18) in response to electrical energisation of the coil (14), and slides in the opposite direction upon de-energisation of the coil in response to the stored energy of the spring (18). The core (8) is connected to an output member (6) by means of a control rod (24) freely slidable through the core (8) and which has an enlarged head (27) against which a second coil spring (28) acts. During inward movement of the core (8) in response to energisation of the coil (14), the core (8) pulls the output member (6) through the intermediary of a second spring (28) and a control rod (24) which is slidable through the core (8) and is fixed to the output member (6). During outward movement of the core (8) in response to de-energisation of the coil (14), an end face (15) of the core (8) pushes on an end face (26) of the output member (6). When the core (8) is at its innermost position, a predetermined amount of play (32) exists between the end (15) of the core (8) and the end face (26) of the output member (6). This allows the core (8) to accelerate before it abuts against the end face (26) of the output member (6). <IMAGE>

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

H01F 7/16; H01F 7/08

IPC 8 full level (invention and additional information)

H01F 7/08 (2006.01); H01F 7/16 (2006.01)

CPC (invention and additional information)

H01F 7/1607 (2013.01); H01F 7/088 (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 0981138 A2 20000223; EP 0981138 A3 20000315; GB 2340664 A 20000223; GB 9817715 D0 19981014

INPADOC legal status

2001-07-11 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20000916

2000-11-29 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-03-15 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-03-15 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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- Free Format Text: AL;LT;LV;MK;RO;SI

2000-03-15 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 01F 7/16 A, 7H 01F 7/08 B

2000-02-23 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

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

2000-02-23 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

- Free Format Text: AL;LT;LV;MK;RO;SI