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. 23, 2019
Filed:
Mar. 20, 2015
Kepco Nuclear Fuel Co., Ltd., Daejeon, KR;
Dong Kwang Shin, Daejeon, KR;
Byeong Eun Oh, Daejeon, KR;
Kwang Ho Yun, Daejeon, KR;
Sang Jae Han, Daejeon, KR;
Jong Sung Hong, Daejeon, KR;
Kwang Seok Cha, Chungcheongnam-do, KR;
Wun Su Hong, Daejeon, KR;
KEPCO NUCLEAR FUEL CO., LTD., Daejeon, KR;
Abstract
Provided is a laser welding apparatus for spacer grid of nuclear fuel assembly comprising a base frame in which a chamber installment hole is formed horizontally to the center in a way that the hole penetrates the chamber and a guide rail is installed along the chamber installment hole; a welding chamber unit assembled with the base frame in guidance by the guide rail and equipped with an operable door in front and a glass window at the top to be airtight; a laser welding unit mounted on the base frame for radiating laser through the glass window to weld spacer grid in the welding chamber; and a locking member for fixing the welding chamber on the base frame.