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:
May. 20, 2014
Filed:
Dec. 21, 2011
Ki Chan Nam, Chungcheongbuk-do, KR;
Sang Yong Lee, Chungcheongbuk-do, KR;
Wook Jung Sung, Chungcheongbuk-do, KR;
Dong Bok Park, Chungcheongbuk-do, KR;
Hak Kyu Kim, Chungcheongbuk-do, KR;
Jong Chan Lee, Gyeongsangbuk-do, KR;
Ki Chan Nam, Chungcheongbuk-do, KR;
Sang Yong Lee, Chungcheongbuk-do, KR;
Wook Jung Sung, Chungcheongbuk-do, KR;
Dong Bok Park, Chungcheongbuk-do, KR;
Hak Kyu Kim, Chungcheongbuk-do, KR;
Jong Chan Lee, Gyeongsangbuk-do, KR;
Korloy Inc., Seoul, KR;
Abstract
A double-sided cutting insert includes: rectangular shaped upper and lower surfaces formed at upper and lower sides of the insert; four side surfaces of each of the upper and lower surfaces; an assembling hole perpendicular to the upper surface; major cutting edges, at corners of one side surface, and rotationally symmetrical with respect to a center of an outer shape of the insert in a plan view where the upper surface is the front and rotationally symmetrical with respect to the center in a front view where the one of the side surfaces is the front; minor cutting edges, formed at one side of each major cutting edge, and rotationally symmetrical with respect to the center in the plan view; and minor side surfaces formed on a surface where the minor cutting edges meet the side surfaces and inclined toward the center with respect to an assembling hole central axis.