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. 11, 1995
Filed:
Nov. 18, 1993
Tokico, Ltd., Kanagawa, JP;
Abstract
A damping force control type hydraulic shock absorber has a piston that has main hydraulic fluid passages and valve mechanisms and also has a piston rod connected thereto. One side of the cylinder of the shock absorber is provided with a damping force control mechanism having a guide member and a shutter, which open and close a bypass passage, and a valve mechanism that generates damping force by controlling the flow of hydraulic fluid through the bypass passage. Damping force characteristics are changed by rotating the shutter with a rotary actuator. Since the damping force control mechanism is provided on the side of the cylinder and the piston is provided with only the main hydraulic fluid passages and the valve mechanisms, the size of the piston assembly is relatively small. Accordingly, the stroke of the piston rod can be increased.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile