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. 10, 2016
Filed:
Oct. 30, 2014
Applicant:
Nikken Kosakusho Works, Ltd., Daito-shi, JP;
Inventors:
Eisaku Nakai, Daito, JP;
Suguru Maemura, Daito, JP;
Susumu Mikado, Daito, JP;
Steve Eckersall, Rotherham, GB;
Assignee:
NIKKEN KOSAKUSHO WORKS, LTD., Daito-shi, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 31/107 (2006.01); B23B 31/00 (2006.01); B23B 31/117 (2006.01);
U.S. Cl.
CPC ...
B23B 31/1075 (2013.01); B23B 31/005 (2013.01); B23B 31/117 (2013.01); B23B 2231/0256 (2013.01); B23B 2250/12 (2013.01); Y10T 279/17821 (2015.01); Y10T 407/14 (2015.01); Y10T 407/1948 (2015.01); Y10T 409/30952 (2015.01);
Abstract
In a shank portion of an end mill which is chucked by a tool holder, flat surfaces are formed at a plurality of circumferential positions in the outer periphery of the shank portion so that the flat surfaces abut on side lock bolts attached to a body of the tool holder.