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. 17, 2022
Filed:
Dec. 23, 2020
Ihi Corporation, Tokyo, JP;
Jaemin Huh, Tokyo, JP;
Other;
Abstract
A variable flow rate valve mechanism includes a valve including a valve body and a valve shaft projecting from the valve body, a lock member fixed to the valve shaft at a position axially spaced from the valve body, an attachment member disposed between the valve body and the lock member and holding the valve together with the lock member, and a spring washer disposed between the lock member and the attachment member or between the attachment member and the valve body, and contacting the lock member or the valve body and the attachment member to impart an elastic force to the attachment member. A first member or a second member has an inner face, the inner face facing radially inward and facing an outer peripheral portion of the spring washer.