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:
Feb. 17, 2015
Filed:
Aug. 26, 2008
Applicants:
Takuma Nonaka, Tokyo, JP;
Terufumi Hamano, Tokyo, JP;
Michio Yamashita, Tokyo, JP;
Inventors:
Assignee:
Max Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 31/11 (2006.01); B23B 51/12 (2006.01); B23B 51/00 (2006.01);
U.S. Cl.
CPC ...
B23B 51/12 (2013.01); B23B 31/11 (2013.01); B23B 51/00 (2013.01); B23B 2226/75 (2013.01); B23B 2251/02 (2013.01); B23B 2260/138 (2013.01); B23B 2270/12 (2013.01); B23B 2270/58 (2013.01);
Abstract
In a drilling tool including: a shank located at a tip side of a tool main body; and a bit located at a tip side of the shank, the shank and the bit (connection body) are connected to each other via screws, and a guide part for center alignment for aligning the centers of the shank and the bit is formed in the vicinity of screw portions of the shank and the bit.