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:
Nov. 09, 2021
Filed:
Apr. 09, 2018
Mitsubishi Heavy Industries Aero Engines, Ltd., Aichi, JP;
Yasuyuki Uetsuki, Tokyo, JP;
Tadayuki Hanada, Aichi, JP;
Yohei Fujimoto, Aichi, JP;
Takafumi Ota, Aichi, JP;
Yusuke Ichihashi, Aichi, JP;
MITSUBISHI HEAVY INDUSTRIES AERO ENGINES, LTD., Aichi, JP;
Abstract
The present invention enables machining to be easily performed and reduces stress concentration on a machined hole that is formed in a cylindrical member. Recesses () recessed in the depth direction of a machined hole () are formed on circumferential side-portions of the machined holeformed in a cylindrical member (). In each of the recesses (), a part of the opening edge is formed to be a circular arc portion () that has a circular arc shape, the bottom is formed to be gradually shallowed by an inclined surface () toward an opened portion () in which the circular arc shape is opened, from a part along the circular arc portion (), and the circular arc portion () is disposed toward the machined hole ().