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:
Apr. 08, 2014
Filed:
Sep. 11, 2009
Young Ho Lee, Daejeon, KR;
Kang Hee Lee, Daejeon, KR;
Jae Yong Kim, Daejeon, KR;
Kyung Ho Yoon, Daejeon, KR;
Hyung Kyu Kim, Daejeon, KR;
Chang Hwan Shin, Daejeon, KR;
Dong Seok OH, Daejeon, KR;
Wang Ki IN, Daejeon, KR;
Tae Hyun Chun, Daejeon, KR;
Kun Woo Song, Daejeon, KR;
Young Ho Lee, Daejeon, KR;
Kang Hee Lee, Daejeon, KR;
Jae Yong Kim, Daejeon, KR;
Kyung Ho Yoon, Daejeon, KR;
Hyung Kyu Kim, Daejeon, KR;
Chang Hwan Shin, Daejeon, KR;
Dong Seok Oh, Daejeon, KR;
Wang Ki In, Daejeon, KR;
Tae Hyun Chun, Daejeon, KR;
Kun Woo Song, Daejeon, KR;
Korea Atomic Energy Research Institute, Daejeon, KR;
Abstract
A spacer grid for nuclear fuel rods includes a plurality of unit spacer grids stacked one on top of another. Each unit spacer grid includes a plurality of unit spacer grid straps disposed at regular intervals in a row, and a plurality of fixing grid straps connected to respective opposite ends of the unit spacer grid straps so as to fix the unit spacer grid straps. Each unit spacer grid strap has convexities alternating with each other on opposite sides thereof at regular intervals, and at least one of the convexities has a diameter greater than the others. The unit spacer grids are rotated in one direction by a 90 or 180 degree angle when being stacked.