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:
Jun. 04, 2019
Filed:
Sep. 26, 2016
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Umi Tanabe, Ibaraki, JP;
Yusei Kimura, Ibaraki, JP;
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Abstract
A cylinder device includes: an inner cylinder in which a functional fluid, a fluid property of which is changed due to an electric field or a magnetic field, is encapsulated; an outer cylinder provided outside the inner cylinder; an intermediate cylinder provided between the inner cylinder and the outer cylinder to serve as an electrode or a magnetic pole; a rod guide provided to close the one end side end portions of the inner cylinder and the outer cylinder; a spacer having one end located at the rod guide side and the other end located at the one end side of the intermediate cylinder, and fitted to the inner cylinder; and an elastic seal member disposed in a portion of the other end of the spacer, and configured to seal the one end side end portion of the passage between the intermediate cylinder and the inner cylinder.