Global patent index - EP 0918341 A3

EP 0918341 A3 2000-08-02 - Electric transformer for high- and very high-intensity currents, particularly for furnaces and rectifiers

Title (en)

Electric transformer for high- and very high-intensity currents, particularly for furnaces and rectifiers

Title (de)

Elektrischer Transformator für hohe und sehr hohe Stromstärken, insbesondere für Öfen und Gleichrichter

Title (fr)

Transformateur électrique pour courants de forte et très forte intensité, en particulier pour fours et redresseurs

Publication

EP 0918341 A3 (EN)

Application

EP 98203863 A

Priority

IT MI972576 A

Abstract (en)

[origin: EP0918341A2] An electric transformer for high- and very high-intensity currents, particularly for furnaces and rectifiers, comprising a tank (2) which contains a magnetic core (3) with the corresponding windings (4,5). The low-voltage feedthroughs for high- and very high-intensity currents protrude hermetically from the tank (2). The particularity of the invention is constituted by the fact that at least the portion of the wall of the tank that is affected by the low-voltage feedthroughs is made of aluminum and/or alloys thereof and forms openings for the hermetic passage of the low-voltage feedthroughs. <IMAGE>

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

H01F 27/02; H01F 27/04

IPC 8 full level (invention and additional information)

H01F 27/04 (2006.01)

CPC (invention and additional information)

H01F 27/04 (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 0918341 A2 19990526; EP 0918341 A3 20000802; IT 1296469 B1 19990625; IT MI972576 A1 19990520

INPADOC legal status

2003-11-05 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030429

2002-04-03 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20020215

2001-04-11 [AKX] PAYMENT OF DESIGNATION FEES

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- Free Format Text: AT BE DE ES FR GB IT NL

2001-03-21 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20010117

2000-08-02 [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

2000-08-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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

2000-08-02 [RIC1] CLASSIFICATION (CORRECTION)

- Ref Legal Event Code: RIC1

- Free Format Text: 7H 01F 27/02 A, 7H 01F 27/04 B

1999-05-26 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE DE ES FR GB IT NL

1999-05-26 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

- Ref Legal Event Code: AX

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