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. 24, 2017
Filed:
Mar. 11, 2016
Showa Corporation, Gyoda-shi, JP;
Takashi Tsukahara, Gyoda, JP;
Tomohiro Miyazaki, Gyoda, JP;
SHOWA CORPORATION, Gyoda-Shi, JP;
Abstract
A hydraulic shock absorber includes a cylinder, a piston ring, a first valve seat forming an extension side oil path, a first valve opening and closing the extension side oil path, a second valve seat forming an inner-side channel through which oil flows separately from a flow of the oil causing the first valve to open the extension side oil path, a second valve opening and closing the inner-side channel, a spool provided to press the second valve toward the inner-side channel, a base member holding the spool, and an axially-movable free piston forming a back pressure chamber communicating with the inner-side channel and that houses the oil between the spool and the base member.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile