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:
Dec. 29, 2020
Filed:
Mar. 07, 2018
Applicants:
Ihi Corporation, Koto-ku, JP;
Chuo Hatsujo Kabushiki Kaisha, Nagoya, JP;
Inventors:
Yuichiro Akiyama, Koto-ku, JP;
Satoshi Ohtani, Koto-ku, JP;
Naotada Ueda, Koto-ku, JP;
Michihiko Tanigaki, Koto-ku, JP;
Hideki Toya, Midori-ku, JP;
Assignees:
IHI Corporation, Koto-ku, JP;
CHUO HATSUJO KABUSHIKI KAISHA, Nagoya, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02B 37/18 (2006.01); F16B 43/00 (2006.01); F02B 39/00 (2006.01); F16K 1/20 (2006.01);
U.S. Cl.
CPC ...
F02B 37/18 (2013.01); F02B 39/00 (2013.01); F16B 43/00 (2013.01); F16K 1/20 (2013.01);
Abstract
A wave washer according to an aspect of the present disclosure includes an annular body which is formed around an axis into a wave shape and at least one protruding piece which protrudes inward or outward from the body. The at least one protruding piece includes a flat surface which is perpendicular to the axis.