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:
Feb. 24, 2015
Filed:
Dec. 11, 2008
Hidenori Harada, Kobe, JP;
Masahiko Yamada, Kobe, JP;
Hidenori Harada, Kobe, JP;
Masahiko Yamada, Kobe, JP;
Mitsubishi Heavy Industries, Ltd., Tokyo, JP;
Abstract
A coupling structure of a fuel assembly includes a screw coupling means to provide a coupling structure of a fuel assembly which prevents foreign matters from mixing in the fuel and in which no vertical play is generated at a fitting portion between a latch sleeveand a lock key. The coupling structure of the fuel assembly includes: the latch sleevehaving a projecting portionformed at an upper end portion thereof; an upper nozzlehaving formed therein a latch sleeve installation holeinto which the upper end portion of the latch sleeveis inserted; and the lock keywhich is installed inside the latch sleeve installation hole, and which has an opening portionformed on a bottom surface thereof, the opening portionhaving a shape corresponding to the projecting portion. The screw coupling means screw couples the lock keyto the upper nozzlewith a male screw threadformed on a side surface of the lock key