The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 03, 2017
Filed:
Jun. 03, 2016
Hitachi Zosen Corporation, Osaka-shi, Osaka, JP;
Hiroaki Arai, Osaka, JP;
Satoshi Ashida, Osaka, JP;
Koji Kitamura, Osaka, JP;
Jyun Okada, Osaka, JP;
Toki Ma, Osaka, JP;
HITACHI ZOSEN CORPORATION, Osaka, JP;
Abstract
To provide a containment cask for storage or transport of radioactive material, without employing a homogenization treatment. Pouring a molten lead between an inner shelland an intermediate shellto serve as a gamma ray shielding material, allowing the lead to cool, and subsequently, filling either one or both of a first void layerformed at a boundary between the inner shelland the poured leador a second void layerformed at a boundary between the intermediate shelland the poured lead, using a low melting point metalin a closely adhering state. To provide the caskwith a good heat-dissipating effect, by filling the void layersthat prevent the caskfrom dissipating heat, with the low melting point metalthat has a superb thermal conductivity.