Electroviscous fluid control device
Patent 4790522 Issued on December 13, 1988. Estimated Expiration Date: 
February 25, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 25, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3059915 3174587 Hydraulic servo valve Inertia type fluid mount using electrorheological and other fluid Patent #: 4720087 Inventor
AssigneeApplicationNo. 07/160486 filed on 02/25/1988US Classes:267/225, Plural mechanical springs for biasing vehicle parts188/266.2, Condition actuates valve or regulator188/267.1, Electroviscous or electrorheological fluid280/5.507Lateral and longitudinal vehicle attitude control (e.g., combinations of antidive, antipitch, antiroll, antisquat, antisway, antiyaw, riding, or suspension height)ExaminersPrimary: Reger, Duane A.Attorney, Agent or FirmInternational ClassesF16F 9/44 (20060101)F16F 9/46 (20060101) F16F 9/53 (20060101) AbstractAn apparatus for connection between relatively movable parts. The apparatus includes a variable volume chamber having a first portion for connection with one of the parts and a second portion for connection with another of the parts. The chamber has fluid therein for resisting movement of the parts relative to each other. A valve controls the fluid flow from the chamber to a location at which the fluid does not resist relative movement of the parts. The valve includes a valve member movable from a first position to provide fluid communication between the chamber and the location. An electroviscous fluid control device resists movement of the valve member form the first position.Field of SearchUsing magnetic flux | |
