Global patent index - EP 1003193 A1

EP 1003193 A1 2000-05-24 - Safety circuit breaker

Title (en)

Safety circuit breaker

Title (de)

Sicherheits-Stromkreisunterbrecher

Title (fr)

Coupe-circuit de sécurité

Publication

EP 1003193 A1 (EN)

Application

EP 98121837 A

Priority

EP 98121837 A

Abstract (en)

The present invention relates to a safety circuit breaker which mechanically interrupts a circuit upon a certain driving signal, if a fault current has occurred and if the normally provided means for cutting off the circuit upon detection of such a fault current fails. A circuit breaker is disclosed that employs a fuse wire (3). In a casing (10) a fixed piece (2) and a mobile piece (1) are provided. Furthermore, there are provided a fixed electrical contact (4) being connected with a wire from outside and a mobile electrical contact (5) being connected with another wire leading outside the casing (10). The mobile electrical contact is movable between a closed position and an open position. In the closed position the mobile electrical contact (5) is in contact with the fixed electrical contact (4). In the open position, the mobile electrical contact (5) is disconnected from the fixed electrical contact (4). This is caused by the movement of the mobile piece (1) which serves as a support plane of the mobile electrical contact (5). Furthermore, the mobile electrical contact (5) is urged against the mobile piece (1) by an urging means (6). If the fuse wire (3) which clamps the fixed piece (1) and the movable piece (2) together, is broken, the mobile piece (1) is urged away from the fixed piece (2) and takes its open position and the mobile electrical contact (5) loses its contact to the fixed electrical contact and a circuit is broken. <IMAGE>

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

H01H 73/34; H01H 15/10

IPC 8 full level (invention and additional information)

H01H 15/10 (2006.01); H01H 73/34 (2006.01); H01H 61/04 (2006.01)

CPC (invention and additional information)

H01H 15/102 (2013.01); H01H 73/34 (2013.01); H01H 61/04 (2013.01); H01H 2085/466 (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 1003193 A1 20000524

INPADOC legal status

2003-12-10 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030502

2001-04-04 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010208

2001-04-04 [RBV] DESIGNATED CONTRACTING STATES (CORRECTION):

- Ref Legal Event Code: RBV

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

2001-01-31 [AKX] PAYMENT OF DESIGNATION FEES

- Ref Legal Event Code: AKX

2000-05-24 [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

2000-05-24 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

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