Title:
【発明の名称】放射性物質用容器の蓋の気密性を永続的に検査するための装置及び検査方法
Document Type and Number:
Japanese Patent JP2001511531
Kind Code:
A
Abstract:
Device for checking the tightness of covers on a heavy metal container for transport and/or storage of radioactive materials, the said container comprising a cavity for nuclear materials delimited by a thick cylindrical shell closed at one end by means of a bottom fixed so that it is leaktight, and at the other end by at least two thick removable superposed covers, characterized in that the said covers are in contact with a shoulder formed in the shell, through flanges fitted with at least two concentric seals, that at least two ducts pass through the shell at each cover, leading through a first inspection orifice to the outside surface of the shell close to the cover in an accessible location, and through a second orifice, one into the space between the cover concentric seals, and the other into the space between the said cover, the shell and the immediately superposed cover, each inspection orifice optionally being connected to a tightness measurement and inspection circuit.
Inventors:
Rene Chocca
Application Number:
JP2000504582A
Publication Date:
August 14, 2001
Filing Date:
July 20, 1998
Export Citation:
Assignee:
Societe Pour Les Transpols de Lindustrie Newcreere-Trans Newcreere
International Classes:
G01M3/04; G21F5/12; G21F9/36; (IPC1-7): G21F9/36; G01M3/04; G21F5/12
Attorney, Agent or Firm:
Masatake Shiga (7 outside)