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. 01, 2022
Filed:
Mar. 08, 2018
Applicant:
Nhk Spring Co., Ltd., Yokohama, JP;
Inventor:
Hideaki Sakai, Yokohama, JP;
Assignee:
NHK SPRING CO., LTD., Kanagawa, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16F 1/32 (2006.01); F16D 13/58 (2006.01); F16D 127/02 (2012.01);
U.S. Cl.
CPC ...
F16F 1/324 (2013.01); F16D 13/583 (2013.01); F16D 2127/02 (2013.01); F16D 2200/0004 (2013.01); F16F 2224/0208 (2013.01); F16F 2232/02 (2013.01); F16F 2232/08 (2013.01);
Abstract
The disc spring is a disc spring for being fitted on a rotary shaft and includes: an annular body portion; a claw portion protruding inward in a radial direction from an inner peripheral edge of the body portion, wherein the claw portion gradually extends toward one side in an axial direction as it goes inward in the radial direction, and at least a tip part of the claw portion is provided with a hole.