Global Patent Index - EP 1373829 B1

EP 1373829 B1 2004-12-15 - HIGH-FREQUENCY ULTRASOUND MEASUREMENT OF PARTIAL LAYER THICKNESS OF THIN-WALLED NUCLEAR FUEL CLADDING TUBES BY A CONTACT METHOD

Title (en)

HIGH-FREQUENCY ULTRASOUND MEASUREMENT OF PARTIAL LAYER THICKNESS OF THIN-WALLED NUCLEAR FUEL CLADDING TUBES BY A CONTACT METHOD

Title (de)

HOCHFREQUENTE ULTRASCHALLMESSUNG VON TEILSCHICHTDICKEN DÜNNWANDIGER KERNBRENNSTOFF-HÜLLROHRE IN KONTAKTTECHNIK

Title (fr)

MESURE ULTRASONIQUE HAUTE FREQUENCE D'EPAISSEURS DE COUCHES PARTIELLES DE TUBES DE GAINAGE POUR COMBUSTIBLE NUCLEAIRE A PAROIS FINES AU MOYEN D'UN PROCEDE DE CONTACT

Publication

EP 1373829 B1 (DE)

Application

EP 02727421 A

Priority

  • DE 10115328 A
  • EP 0202888 W

Abstract (en)

[origin: WO02079725A1] The invention relates to a method for ultrasound measurement of the layer thickness of thin-walled tubes. The inventive method is characterized in that a high-frequency probe (3) (more than 40 MHz) with a coupling area (4) is used that has a planar area surface. Said area surface is coupled to the tube surface (12) that is wetted with a coupling agent (8) by way of a contact method. The inventive method is used for duplex or liner layers of 0.15 mm thickness of reactor fuel cladding tubes.

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

G01B 17/02; G01N 29/24; G21C 17/06

IPC 8 full level (invention and additional information)

G01B 17/00 (2006.01); G01B 17/02 (2006.01); G01N 29/00 (2006.01); G01N 29/28 (2006.01); G01N 29/44 (2006.01); G21C 17/06 (2006.01)

CPC (invention and additional information)

G01N 29/28 (2013.01); G01B 17/00 (2013.01); G01B 17/025 (2013.01); G01N 2291/0231 (2013.01); G01N 2291/02854 (2013.01); G01N 2291/0422 (2013.01); G01N 2291/2634 (2013.01)

Designated contracting state (EPC)

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

EPO simple patent family

WO 02079725 A1 20021010; AT 285064 T 20050115; CN 1500201 A 20040526; DE 10115328 A1 20021010; EP 1373829 A1 20040102; EP 1373829 B1 20041215; JP 2004524536 A 20040812; KR 20030081533 A 20031017; US 2004069066 A1 20040415

INPADOC legal status


2007-12-31 [BERE] BE: LAPSED

- Owner name: *FRAMATOME ANP G.M.B.H.

- Effective date: 20050331

2005-09-30 [BERE] BE: LAPSED

- Owner name: FRAMATOME ANP G.M.B.H.

- Effective date: 20050331

2005-02-09 [REG GB ERR] ERRATUM

- Free text: THE ABOVE EP(UK) PATENT WAS ADVERTISED IN THE PATENTS AND DESIGNS JOURNAL NO. 6030 DATED 20041215 AS GRANTED BY THE EUROPEAN PATENT OFFICE (EPO) WITH EFFECT FROM THAT DATE. THE GRANT DATE WAS HOWEVER DELETED BY THE EPO IN EUROPEAN PATENT BULLETIN NO. 2005/02 DATED 20050112. THE PATENT WAS ACTUALLY WITHDRAWN AT THE EPO ON 20041117.

2005-01-20 [REF] CORRESPONDS TO:

- Document: DE 50201782 P 20050120

2005-01-19 [18W] APPLICATION WITHDRAWN

- Effective date: 20041117

2005-01-12 [DB1] DELETION OF B1 DOCUMENT

2005-01-12 [REG IE FG4D] EUROPEAN PATENTS GRANTED DESIGNATING IRELAND

- Free text: GERMAN

2004-12-15 [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 TR

2004-12-15 [REG GB FG4D] EUROPEAN PATENT GRANTED

- Free text: NOT ENGLISH

2004-08-25 [RTI1] TITLE (CORRECTION)

- Free text: HIGH-FREQUENCY ULTRASOUND MEASUREMENT OF PARTIAL LAYER THICKNESS OF THIN-WALLED NUCLEAR FUEL CLADDING TUBES BY A CONTACT

2004-03-03 [RIN1] INVENTOR CHANGED BEFORE GRANT

- Inventor name: DUST, MARTIN

2004-01-02 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20030919

2004-01-02 [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 TR

2004-01-02 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

- Countries: AL LT LV MK RO SI