EP 0998745 A1 20000510 - 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
Application
Priority
- FR 9801578 W 19980720
- FR 9709675 A 19970724
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
IPC 8 full level
G01M 3/04 (2006.01); G21F 5/12 (2006.01); G21F 9/36 (2006.01)
CPC (source: EP KR US)
G21F 5/12 (2013.01 - EP KR US)
Citation (search report)
See references of WO 9905686A1
Designated contracting state (EPC)
BE DE FR IT
DOCDB simple family (publication)
FR 2766570 A1 19990129; FR 2766570 B1 19990924; EP 0998745 A1 20000510; JP 2001511531 A 20010814; KR 20010022166 A 20010315; SK 792000 A3 20000711; TW 436813 B 20010528; US 6223587 B1 20010501; WO 9905686 A1 19990204
DOCDB simple family (application)
FR 9709675 A 19970724; EP 98939710 A 19980720; FR 9801578 W 19980720; JP 2000504582 A 19980720; KR 20007000738 A 20000122; SK 792000 A 19980720; TW 87111071 A 19980708; US 46322300 A 20000223