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. 26, 2019
Filed:
Aug. 25, 2015
Applicant:
Kyoraku Co., Ltd., Kyoto, JP;
Inventor:
Kousuke Aihara, Kanagawa, JP;
Assignee:
KYORAKU CO., LTD., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 51/04 (2006.01); B65D 23/02 (2006.01); B65D 25/16 (2006.01); B23B 35/00 (2006.01); B26F 1/16 (2006.01);
U.S. Cl.
CPC ...
B23B 51/0406 (2013.01); B23B 35/00 (2013.01); B26F 1/16 (2013.01); B65D 23/02 (2013.01); B65D 25/16 (2013.01); B23B 2226/61 (2013.01); B23B 2251/201 (2013.01); B65D 2205/00 (2013.01); Y10T 408/45 (2015.01); Y10T 408/896 (2015.01);
Abstract
A method of machining a workpiece is provided that is capable of forming a fresh air inlet in an arbitrary position in an outer shell of a container. According to the present invention, a method of machining a workpiece is provided that includes: machining to form a round hole in a workpiece using a boring drill having a tubular end portion, the end portion provided with a flat surface and a notch, and having a blade on a side of the notch, by pressing the flat surface against the workpiece while rotating the drill to contact the blade with the workpiece.