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. 17, 2025
Filed:
Apr. 16, 2021
Lockheed Martin Corporation, Bethesda, MD (US);
John C. Cox, Jupiter, FL (US);
Steven P. Lozano, Stratford, CT (US);
David H. Hunter, Stratford, CT (US);
Emmett Emile Menair, Stratford, CT (US);
Jacob Adam Fehrman, Stratford, CT (US);
John Devin Carroll, Fortworth, TX (US);
LOCKHEED MARTIN CORPORATION, Bethesda, MD (US);
Abstract
A tunable mass damper assembly is attachable to a rotor blade. The tunable mass damper assembly comprises a base configured to be attached to the rotor blade and a pendulum mass structure movably attached to the base and configured to move relative to the base in accordance with a rotational speed of the rotor blade about a rotor axis. The pendulum mass structure is configured to reduce vibratory forces of the rotor blade induced by a rotation of the rotor blade about the rotor axis. An entirety of the pendulum mass structure being configured to be contained within and enclosed by the rotor blade.