Global Patent Index - EP 0998745 A1

EP 0998745 A1 2000-05-10 - DEVICE AND METHOD FOR PERMANENTLY CONTROLLING THE TIGHTNESS OF CLOSING LIDS OF CONTAINERS FOR RADIOACTIVE MATERIALS

Title (en)

DEVICE AND METHOD FOR PERMANENTLY CONTROLLING THE TIGHTNESS OF CLOSING LIDS OF CONTAINERS FOR RADIOACTIVE MATERIALS

Title (de)

ANORDNUNG UND VERFAHREN ZUR PERMANENTEN DICHTHEITSÜBERPRÜFUNG VON VERSCHLUSSDECKELN VON BEHÄLTERN FÜR RADIOAKTIVE STOFFE

Title (fr)

DISPOSITIF ET PROCEDE DE CONTROLE PERMANENT DE L'ETANCHEITE DE COUVERCLES D'OBTURATION DE CONTENEURS POUR MATIERES RADIOACTIVES

Publication

EP 0998745 A1 (FR)

Application

EP 98939710 A

Priority

  • FR 9801578 W
  • FR 9709675 A

Abstract (en)

[origin: FR2766570A1] The invention concerns a device for controlling the tightness of the lids of a heavy metal container for transporting and/or storing radioactive materials, said container comprising a cavity for nuclear materials delimited by a thick cylindrical shell closed at one end with a tightly fixed base and at the other end with at least two removable, thick superposed lids. The invention is characterised in that said lids are maintained supported on shoulders, arranged in the shell, by means of flanges provided with at least two concentric joints, and to each lid correspond at least two channels passing through said shell, emerging through a first control orifice at the shell outer surface in the proximity of the lids in an accessible place, and through a second orifice, one in the space between the lid concentric joints, the other in the space located between said lid, the shell and the immediately superposed lid, each orifice being optionally connected to a circuit measuring and controlling tightness.

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

G21F 5/12

IPC 8 full level (invention and additional information)

G01M 3/04 (2006.01); G21F 5/12 (2006.01); G21F 9/36 (2006.01)

CPC (invention and additional information)

G21F 5/12 (2013.01); G21Y 2002/304 (2013.01); G21Y 2002/502 (2013.01); G21Y 2004/304 (2013.01); G21Y 2004/40 (2013.01)

Citation (search report)

See references of WO 9905686A1

Designated contracting state (EPC)

BE DE FR IT

EPO simple patent family

FR 2766570 A1 19990129; FR 2766570 B1 19990924; EP 0998745 A1 20000510; JP 2001511531 A 20010814; SK 792000 A3 20000711; TW 436813 B 20010528; US 6223587 B1 20010501; WO 9905686 A1 19990204

INPADOC legal status


2002-10-02 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: COGEMA LOGISTICS

2000-05-10 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20000124

2000-05-10 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): BE DE FR IT