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:
Jul. 05, 2011
Filed:
Aug. 04, 2008
Jun Shimojo, Takasago, JP;
Hiroshi Akamatsu, Takasago, JP;
Hiroaki Taniuchi, Takasago, JP;
Kenichi Mantani, Takasago, JP;
Jun Shimojo, Takasago, JP;
Hiroshi Akamatsu, Takasago, JP;
Hiroaki Taniuchi, Takasago, JP;
Kenichi Mantani, Takasago, JP;
Kobe Steel, Ltd., Kobe-shi, JP;
Abstract
A transport/storage cask for a radioactive material has an inner shell, an outer shell and a circular gamma ray shielding layer and a circular neutron shielding layer both of which are placed between the inner shell and the outer shell. The gamma ray shielding layer is formed by aligning a plurality of gamma ray shielding blocks composed of lead in a block shape in the circumferential direction. The entire gamma ray shielding block in the axial direction is covered with a copper tube having a higher elasticity limit than the gamma ray shielding block. In the above transport/storage cask, the gamma ray shielding layer composed of lead or a lead alloy is not easily deformed.