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:
Jun. 12, 2012
Filed:
Apr. 11, 2008
James A. Wilson, Varese, IT;
Charles L. Barkley, Jr., Fort Worth, TX (US);
Gerald Smith, Jr., Grapevine, TX (US);
Jeffrey B. Cloud, Mansfield, TX (US);
James A. Wilson, Varese, IT;
Charles L. Barkley, Jr., Fort Worth, TX (US);
Gerald Smith, Jr., Grapevine, TX (US);
Jeffrey B. Cloud, Mansfield, TX (US);
Textron Innovations Inc., Providence, RI (US);
Abstract
A method is disclosed for suppressing vibration in an aircraft having at least one pair of multiple-blade rotors. The first step of the method is to install in the aircraft at least one pair of vibration suppression devices to form a system, the devices of each system being mounted on opposing sides of the aircraft. Then, during operation of the aircraft, the next step is to rotate the at least one pair of rotors in a manner that causes the blades one of each pair of rotors to be out of phase from the other of each pair of rotors. The final step is to use the system to suppress vibrations caused by the out-of-phase rotation of the rotors.