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:
Aug. 14, 2018
Filed:
Oct. 23, 2013
Lord Corporation, Cary, NC (US);
Mark R. Jolly, Raleigh, NC (US);
Russell E. Altieri, Holly Springs, NC (US);
Wayne L. Winzenz, Raleigh, NC (US);
Warren F. Brannan, Sanford, NC (US);
Paul R. Black, Fuquay-Varina, NC (US);
Doug A. Swanson, Cary, NC (US);
LORD Corporation, Cary, NC (US);
Abstract
Hub-mounted active vibration control (HAVC) devices, systems, and related methods are provided. An HAVC device () includes a housing () having a tolerance ring () attached to a rotary hub (). The tolerance ring can accommodate dissimilar coefficients of thermal expansion between dissimilar metals. The HAVC device can also include a plurality of coaxial ring motors (A,B,A,B) configured to rotate a plurality of imbalance masses for controlling vibration. An HAVC system can further include a de-icing distributor () for communicating instructions to one or more heating sources (HS) provided at one or more rotary blades () of a vehicle or aircraft. A method of controlling vibratory loads occurring at a moving platform can include providing a moving platform, mounting a vibration control device to a portion of the moving platform, and rotating at least one pair of imbalance masses such that the combined forces of the masses substantially cancel unwanted vibration of the platform.