Title:
METHOD FOR FABRICATING GRATING
Document Type and Number:
WIPO Patent Application WO/2014/007455
Kind Code:
A1
Abstract:
The present invention relates to a method for fabricating a grating for covering a water drainage duct. A method for fabricating a grating according to the present invention includes the steps of: (a) piercing a panel so as to form burring holes, first and second holes for water drainage holes; (b) inserting a burring punch into the burring holes so as to expand the burring holes for shaping the water drainage holes and flanges; and (c) bending first and second side plates downwardly with regard to the upper plate.
Inventors:
KWON HYUG-MYUNG (KR)
Application Number:
PCT/KR2013/003116
Publication Date:
January 09, 2014
Filing Date:
April 15, 2013
Export Citation:
Assignee:
KWON HYUG-MYUNG (KR)
International Classes:
E03F5/06; E01C9/10
Foreign References:
| KR20050120542A | 2005-12-22 | |||
| KR20090125971A | 2009-12-08 | |||
| KR20010107264A | 2001-12-07 |
Attorney, Agent or Firm:
HONG, Byung-Eui (KR)
홍병의 (KR)
홍병의 (KR)
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