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. 19, 1988
Filed:
Oct. 06, 1987
Applicant:
Inventor:
Dale W Schubert, Sudbury, MA (US);
Assignee:
Barry Wright Corporation, Newton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16M / ; F16M / ; F16F / ; B64C / ;
U.S. Cl.
CPC ...
267136 ; 248550 ; 248638 ; 267 6423 ; 318649 ;
Abstract
A parametrically controlled active vibration isolation system comprises a damper having a servovalve fluidically coupling a load supporting actuator to an accumulator. The servovalve includes a variable orifice arrangement which regulates the flow therethrough of a hydraulic fluid in response to a command signal derived from response sensors. In this manner the damping coefficient is modulated so as to approximate a 'sky-hook' damper.