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:
May. 25, 1993
Filed:
Mar. 27, 1992
Thierry Legouis, Basse Goulaine, FR;
Philippe de Larminat, Rennes, FR;
Michel Guglielmi, Nantes, FR;
ACB, Paris, FR;
Abstract
A device for compensating a vibration force uses four rotating weights with parallel rotation axes. The four weights are located in a common plane P and symmetrical in pairs relative to a plane perpendicular to the plane P and passing through the line of action of the vibrational force F to be compensated. The weights of each pair rotate in opposite directions. A device for compensating a vibrational torque uses four rotating weights with rotation axes parallel to an axis D and symmetrical in pairs relative to the axis D. The weights of each pair rotate in the same direction. A real time control device includes a constant gain non-linear self-adapting Kalman filter.