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:
Oct. 13, 2015
Filed:
Apr. 17, 2013
Kayaba Industry Co., Ltd., Tokyo, JP;
Yasuhiro Kitamura, Aichi, JP;
KAYABA INDUSTRY CO., LTD., Tokyo, JP;
Abstract
A suspension device includes a partition wall body which partitions the outside of a hollow pipe into a working chamber and a reservoir first chamber, a first piston which partitions the working chamber into an extension-side first chamber and a contraction-side first chamber, a first flow passage which allows communication between the extension-side first chamber and the reservoir first chamber, an extension-side second chamber which communicates with the extension-side first chamber, a second piston which partitions the interior of the hollow pipe into a contraction-side second chamber and a reservoir second chamber, a first damping flow passage which allows communication between an extension-side chamber and a contraction-side chamber, and a second damping flow passage which allows communication between the contraction-side chamber and a reservoir. A cross-sectional area of the extension-side second chamber is larger than that of the hollow pipe.