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:
Nov. 04, 2014
Filed:
Aug. 01, 2011
Koji Ito, Gifu, JP;
Toshiaki Tanaka, Gifu, JP;
Koji Ito, Gifu, JP;
Toshiaki Tanaka, Gifu, JP;
Nabtesco Corporation, Tokyo, JP;
Abstract
A plurality of hydraulically operated actuators that drive a control surface and a plurality of control systems that respectively control the operation of the actuators are included. Each of the control systems includes a control valve, a state switching valve and a test orifice circuit. The test orifice circuit includes a test orifice used for testing the performance of an orifice. The state switching valve is provided such that its position can be switched between an actuator connection position, a damping position and a test orifice position.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile