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:
Oct. 14, 2014
Filed:
May. 01, 2012
Frank B. Stamps, Colleyville, TX (US);
Michael R. Smith, Colleyville, TX (US);
Christopher M. Bothwell, Grapevine, TX (US);
Lawrence M. Corso, Keller, TX (US);
James L. Braswell, Jr., Colleyville, TX (US);
David A. Popelka, Colleyville, TX (US);
Ernst C. Schellhase, Fort Worth, TX (US);
Charles L. Hollimon, North Richland Hills, TX (US);
Thomas J. Newman, Maypearl, TX (US);
Bryan Baskin, Arlington, TX (US);
Thomas C. Campbell, Keller, TX (US);
Daniel B. Robertson, Southlake, TX (US);
Frank B. Stamps, Colleyville, TX (US);
Michael R. Smith, Colleyville, TX (US);
Christopher M. Bothwell, Grapevine, TX (US);
Lawrence M. Corso, Keller, TX (US);
James L. Braswell, Jr., Colleyville, TX (US);
David A. Popelka, Colleyville, TX (US);
Ernst C. Schellhase, Fort Worth, TX (US);
Charles L. Hollimon, North Richland Hills, TX (US);
Thomas J. Newman, Maypearl, TX (US);
Bryan Baskin, Arlington, TX (US);
Thomas C. Campbell, Keller, TX (US);
Daniel B. Robertson, Southlake, TX (US);
Textron Innovations Inc., Providence, RI (US);
Abstract
A rotor hub and method to dampen a force exerted on a rotor hub by a rotor blade during flight. The rotor hub including a central member rotatably coupled to a rotor mast, a blade grip rigidly attached to a blade and movably coupled to the central member, and an adjustable damper operably associated with the blade grip. The method includes damping the force exerted on the rotor hub with the adjustable damper and selectively adjusting the adjustable damper between a first spring rate and a second spring rate.