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:
Sep. 13, 2022
Filed:
Sep. 07, 2017
Applicant:
Sumitomo Electric Hardmetal Corp., Itami, JP;
Inventors:
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP., Itami, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23C 5/10 (2006.01); C23C 28/04 (2006.01); C23C 30/00 (2006.01); B23B 51/02 (2006.01);
U.S. Cl.
CPC ...
B23C 5/10 (2013.01); C23C 28/044 (2013.01); C23C 28/046 (2013.01); C23C 30/00 (2013.01); B23B 51/02 (2013.01); B23B 2226/315 (2013.01); B23B 2228/10 (2013.01); B23B 2251/204 (2013.01); B23C 2210/0492 (2013.01); B23C 2226/27 (2013.01); B23C 2226/315 (2013.01); B23C 2228/10 (2013.01);
Abstract
A rotary cutting tool includes a main body and a shank. The main body has a tip end. The shank is continuous with the main body on the side opposite to the tip end. The main body is provided with a first cutting edge having a positive twist angle, and a second cutting edge having a negative twist angle and separated from the first cutting edge. Each of the first cutting edge and the second cutting edge extends continuously from the tip end to the shank.