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:
Jul. 23, 2019
Filed:
Sep. 25, 2014
Hitachi Automotive Systems, Ltd., Hitachinaka-shi, Ibaraki, JP;
Masahiro Ashiba, Naka-gun, JP;
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Abstract
A cylinder device includes; a cylinder; a rod protruding from the cylinder; an annular member formed at one end side of the cylinder; an annular closing section formed further outward in a cylinder inward/outward direction than the annular member to close the one end side of the cylinder; and an annular seal ring provided inward in the cylinder inward/outward direction from an outer circumferential side of the closing section. The seal ring includes: a front end side outer circumferential seal section; a base end side outer circumferential seal section; a front end side inner circumferential abutting section; and a base end side inner circumferential abutting section. At least one set of seal sections or abutting sections is constituted by convex sections protruding in a radial direction.