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. 09, 2007
Filed:
Jul. 25, 2003
Hideki Yamai, Hitachi, JP;
Masato Ooura, Hitachi, JP;
Kazunari Uchida, Hitachi, JP;
Tadahiro Washiya, Naka-gun, JP;
Tomozo Koyama, Naka-gun, JP;
Hideki Yamai, Hitachi, JP;
Masato Ooura, Hitachi, JP;
Kazunari Uchida, Hitachi, JP;
Tadahiro Washiya, Naka-gun, JP;
Tomozo Koyama, Naka-gun, JP;
Japan Nuclear Cycle Development Institute, Ibaraki-ken, JP;
Abstract
An agitation type powder dissolving apparatus comprises a dissolving tank into which powder of spent nuclear fuel is to be supplied, an agitating member rotatably disposed in the dissolving tank, and rise inhibiting structure, disposed in the dissolving tank above the agitating member, for inhibiting the powder from swirling and rising due to rotation of the agitating member. The rise inhibiting structure is composed of a plurality of fixed blades for causing powder, which would otherwise swirl and rise due to rotation of the agitating member, to move downward. Each fixed blade has a descending slope with respect to a swirling direction during swirling and rising. This dissolving apparatus prevents non-dissolved particles from overflowing.