Title:
CHISEL
Document Type and Number:
WIPO Patent Application WO/2017/146442
Kind Code:
A1
Abstract:
A chisel according to an embodiment of the present invention comprises: a chisel body having a core insertion groove formed thereon; a core inserted in the core insertion groove; and a cushion member inserted in the core insertion groove and located between the core and the chisel body. The chisel includes a core configured by a unique composition and thus has improved durability. Further, the cushion member located between the core and the chisel body prevents the chisel from being broken due to pressure concentration and thus prolongs the lifespan of the chisel.
Inventors:
CHANG CHEOL GIL (KR)
Application Number:
PCT/KR2017/001898
Publication Date:
August 31, 2017
Filing Date:
February 21, 2017
Export Citation:
Assignee:
CHANG CHEOL GIL (KR)
International Classes:
E02F5/30; C21D9/00; C22C38/02; C22C38/22; C22C38/24; E01C23/12; E02F3/96
Foreign References:
| KR20010003387A | 2001-01-15 | |||
| KR20030095766A | 2003-12-24 | |||
| KR20120031541A | 2012-04-04 | |||
| KR20150094296A | 2015-08-19 | |||
| JPH11245222A | 1999-09-14 |
Attorney, Agent or Firm:
MAJOR PATENT AND LAW FIRM (KR)
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