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:
Apr. 15, 2014
Filed:
Mar. 19, 2012
Mikio Yamashita, Yokohama, JP;
Fumiyuki Yamaoka, Sagamihara, JP;
Masaru Kouyama, Ayase, JP;
Atsushi Maeda, Fujisawa, JP;
Mikio Yamashita, Yokohama, JP;
Fumiyuki Yamaoka, Sagamihara, JP;
Masaru Kouyama, Ayase, JP;
Atsushi Maeda, Fujisawa, JP;
Hitachi Automotive Systems, Ltd., Ibaraki, JP;
Abstract
A shock absorber includes first passages configured to communicate two chambers to flow a working fluid therebetween by movement of a piston, and a second passage configured to communicate with one chamber of the two chambers. The first passages have damping valves configured to suppress a flow of the working fluid generated by movement of the piston to generate a damping force. The second passage has a variable orifice having an area adjusted by an elastic member when a piston rod moves in an extension direction, a pressure chamber installed in series with the variable orifice, and a free piston configured to vary a volume of the pressure chamber by movement of the piston.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile