Global Patent Index - EP 1240639 A1

EP 1240639 A1 2002-09-18 - AUTHENTICATABLE 3-DIMENSIONAL OBJECT AND METHOD FOR PROTECTING AND IDENTIFYING OBJECTS PRODUCED BY A FOUNDERY TECHNIQUE

Title (en)

AUTHENTICATABLE 3-DIMENSIONAL OBJECT AND METHOD FOR PROTECTING AND IDENTIFYING OBJECTS PRODUCED BY A FOUNDERY TECHNIQUE

Title (de)

HERKUNFTSBESTIMMBARER DREIDIMENSIONALER GEGENSTAND UND VERFAHREN ZUM SCHUTZ UND ZUR IDENTIFIZIERUNG DER DURCH GUSSTECHNIK HERGESTELLTEN GEGENSTÄNDE

Title (fr)

OBJET TRIDIMENSIONNEL AUTHENTIFIABLE ET PROCEDE DE PROTECTION ET D'IDENTIFICATION D'OBJETS REALISES PAR UNE TECHNIQUE DE FONDERIE

Publication

EP 1240639 A1 (FR)

Application

EP 00985422 A

Priority

  • FR 0003502 W
  • FR 9915662 A

Abstract (en)

[origin: FR2802327A1] The invention relates to a method for protecting and identifying a 3-dimensional object such as a work of art, an object of value or an industrial component, produced by a foundery technique, casting or similar. According to said method, marker elements (50) are added to the core material (30) of the object when it is produced, said marker elements having different characteristics to the core material (30) of the object so that they have a different reaction to that of the core material (30) of the object to non-destructive agents for examining the internal structure of the object. Said marker elements are metallic (50) and consist of balls with a higher melting point than the metallic core material (30) of the object. The marker elements are introduced into the liquid core material (30) of the object randomly, in solid form, when the object is being poured, without premixing. After the object has been produced, it can be identified by locating the marker elements in the inner structure of the object using a technique of analysis by x-ray tomography. The inventive method provides a means of authenticating an object which is characterized by a reference plane and at least one cutting plane parallel to said reference plane, comprising the image of at least one marker element (50).

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

G09F 3/00

IPC 8 full level (invention and additional information)

G01N 23/04 (2006.01); B22D 19/00 (2006.01); B22D 19/16 (2006.01); B22D 25/02 (2006.01); G06T 1/00 (2006.01); G09F 3/00 (2006.01)

CPC (invention and additional information)

G09F 3/00 (2013.01)

Citation (search report)

See references of WO 0145072A1

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

FR 2802327 A1 20010615; FR 2802327 B1 20041015; EP 1240639 A1 20020918; IL 150207 D0 20021201; JP 2003517152 A 20030520; US 2003102661 A1 20030605; WO 0145072 A1 20010621

INPADOC legal status


2005-01-05 [18D] APPLICATION DEEMED TO BE WITHDRAWN

- Effective date: 20040701

2002-09-18 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020711

2002-09-18 [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