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:
May. 05, 2026
Filed:
Oct. 07, 2024
Nakanishi Metal Works Co., Ltd., Osaka, JP;
Yasuhiro Narazaki, Osaka, JP;
Shogo Ikeguchi, Osaka, JP;
Shogo Fukada, Osaka, JP;
Kohei Shibata, Osaka, JP;
Hiroshi Yano, Osaka, JP;
NAKANISHI METAL WORKS CO., LTD., Osaka, JP;
Abstract
A first lower-case wall surface faces an axial gap. A second lower-case wall surface extends toward a radially outer side from an upper end of the first lower-case wall surface. A third lower-case wall surface extends upward from an end of the second lower-case wall surface in the radially outer side. A first upper-case wall surface faces an upper portion of the first lower-case wall surface. A second upper-case wall surface extends toward a radially inner side from an upper end of the first upper-case wall surface. A third upper-case wall surface extends upward from an end of the second upper-case wall surface in the radially inner side and faces the third lower-case wall surface.