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. 21, 2023
Filed:
Dec. 02, 2020
Showa Corporation, Gyoda, JP;
Yosuke Fujikawa, Fukuroi, JP;
HITACHI ASTEMO, LTD., Hitachinaka, JP;
Abstract
A valve mechanism includes an orifice collar having a hollow portion penetrating in an axial direction, a valve body having a central hole and an opening portion which penetrate in the axial direction and arranged so as to come into contact with an axial end surface of the orifice collar, and a drive valve which is movable in the axial direction and is arranged on an opposite side of the orifice collar with the valve body as a boundary, where the valve body includes spoke valves, each of which includes an outer frame portion, an inner frame portion, and a plurality of spoke portions connecting the outer frame portionand the inner frame portion, and a protective valve which protects the spoke portion when the spoke portion of the spoke valve is deformed.