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. 06, 2022
Filed:
Dec. 02, 2020
Applicant:
Tungaloy Corporation, Fukushima, JP;
Inventor:
Hiroya Shikama, Iwaki, JP;
Assignee:
TUNGALOY CORPORATION, Fukushima, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23B 51/06 (2006.01); B23B 27/16 (2006.01);
U.S. Cl.
CPC ...
B23B 51/06 (2013.01); B23B 51/063 (2022.01); B23B 27/16 (2013.01);
Abstract
A drilling tool with improved structure to improve chips discharging performance. The drilling tool comprises a cutting inserthaving a cutting edgeat the front end portion and a main bodymounted with the cutting insert, further, the drilling tool comprises a hollow discharge channelformed inside the main body, and the discharge channelhas a curved surfacefor guiding the chips S in a direction towards the base end portion opposite to the front end portion.