Global Patent Index - EP 0981034 A1

EP 0981034 A1 2000-02-23 - Process to determine the melt level in an electric arc furnace

Title (en)

Process to determine the melt level in an electric arc furnace

Title (de)

Verfahren zum Bestimmen der Höhe des Badspiegels eines Elektrolichtbogenofens

Title (fr)

Procédé pour mesurer la hauteur de la surface du bain métallique dans un four électrique à arc

Publication

EP 0981034 A1 (DE)

Application

EP 99115929 A

Priority

DE 19836844 A

Abstract (en)

The height of the bath mirror (8) is determined using calculated connection of the linear dimensions. The liner dimensions are measured in part directly, indirectly and preferably outside of the high temperature range of the electric arc oven (1). In the process of determining the height of the bath mirror of an electric arc oven (1), the electric arc oven (1) has an oven tank (2) with a slag door (13) and a height adjustable electrode support are (5) for at least a graphite electrode (4).

Abstract (de)

Die Erfindung betrifft ein Verfahren zum Bestimmen der Höhe des Badspiegels eines Elektrolichtbogenofens (1), der ein Ofengefäß (2) mit einer Schlackentür (12) und einen höhenverstellbaren Elektrodentragarm (5) für mindestens eine Graphitelektrode (4) aufweist. Der Nachteil der kostenaufwendigen und ungenauen Messmethode mit Sauerstofflanze und Ofengewichtmessung wird dadurch vermieden, dass die Höhe des Badspiegels (8) durch rechnerische Verknüpfung von Längenabmessungen bestimmt wird, die zum Teil direkt und zum Teil indirekt sowie vorzugsweise außerhalb des Hochtemperaturbereiches des Elektrolichtbogenofens (1) gemessen werden. <IMAGE>

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

F27D 21/00; F27B 3/19; F27B 3/28; F27D 3/15

IPC 8 full level (invention and additional information)

F27B 3/08 (2006.01); F27B 3/28 (2006.01); F27D 21/00 (2006.01)

CPC (invention and additional information)

F27B 3/28 (2013.01); F27B 3/085 (2013.01); F27D 21/0028 (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 0981034 A1 20000223; EP 0981034 B1 20040121; AT 258300 T 20040215; DE 19836844 A1 20000224; DE 19836844 C2 20010705

INPADOC legal status


2008-01-02 [PG25 PT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: PT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040621

2007-12-31 [BERE] BE: LAPSED

- Owner name: *SMS DEMAG A.G.

- Effective date: 20040831

2006-03-01 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20060301

2005-05-06 [REG FR ERR] CORRECTION

- Free text: BOPI DE PUBLICATION Nø: 05/03 PAGES: 237 PARTIE DU BULLETIN CONCERNEE: BREVETS EUROPEENS DONT LA TRADUCTION N'A PAS ETE REMISE A I'INPI IL Y A LIEU DE SUPPRIMER: LA MENTION DE LA NON REMISE.

2005-04-15 [REG CH PL] PATENT CEASED

2005-02-28 [BERE] BE: LAPSED

- Owner name: *SMS DEMAG A.G.

- Effective date: 20040831

2005-01-21 [EN] FR: TRANSLATION NOT FILED

2005-01-14 [EN] FR: TRANSLATION NOT FILED

2005-01-12 [26N] NO OPPOSITION FILED

- Effective date: 20041022

2004-08-31 [PG25 BE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: BE

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040831

2004-08-31 [PG25 CH] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: CH

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040831

2004-08-31 [PG25 LI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: LI

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040831

2004-08-31 [PG25 MC] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: MC

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040831

2004-08-25 [REG IE FD4D] EUROPEAN PATENTS DESIGNATING IRELAND TREATED AS ALWAYS HAVING BEEN VOID

2004-08-13 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040813

2004-08-13 [PG25 LU] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: LU

- Free text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

- Effective date: 20040813

2004-08-05 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20040805

- Year of fee payment: 6

2004-07-21 [GBV] GB: EP PATENT (UK) TREATED AS ALWAYS HAVING BEEN VOID IN ACCORDANCE WITH GB SECTION 77(7)/1977

- Effective date: 20040121

2004-07-01 [NLV1] NL: LAPSED OR ANNULLED DUE TO FAILURE TO FULFILL THE REQUIREMENTS OF ART. 29P AND 29M OF THE PATENTS ACT

2004-04-21 [PG25 DK] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DK

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040421

2004-04-21 [PG25 GR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040421

2004-04-21 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040421

2004-02-26 [REF] CORRESPONDS TO:

- Document: DE 59908350 P 20040226

2004-02-25 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

- Free text: GERMAN

2004-01-30 [REG CH EP] ENTRY IN THE NATIONAL PHASE

2004-01-21 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

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

2004-01-21 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2004-01-21 [PG25 CY] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: CY

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 ES] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: ES

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 FI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FI

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 FR] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FR

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 GB] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: GB

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 IE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IE

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 IT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: IT

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2004-01-21 [PG25 NL] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: NL

- Free text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

- Effective date: 20040121

2003-04-02 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030212

2000-11-08 [AKX] PAYMENT OF DESIGNATION FEES

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

2000-05-24 [RAP1] TRANSFER OF RIGHTS OF AN APPLICATION

- Owner name: SMS DEMAG AG

2000-02-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990825

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

- Kind Code of Ref Document: A1

- 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:

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