Patents by Inventor Albion Richardson FLETCHER, Jr.

Albion Richardson FLETCHER, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20190031319
    Abstract: Propeller control systems and methods for controlling the pitch of a plurality of propeller blades of a variable pitch propeller assembly operatively coupled with an engine is provided. In one exemplary aspect, the propeller control system includes features for combining overspeed and feathering protective functions in a protective control valve communicatively coupled with a controller. In such an event the controller controls the protective control valve to selectively allow a controlled amount of hydraulic fluid to flow to or from a pitch actuation assembly such that the pitch of the propeller blades can be adjusted based at least in part on the condition of the engine.
    Type: Application
    Filed: June 27, 2018
    Publication date: January 31, 2019
    Applicants: GE Aviation Systems Limited, GE Avio S.r.l.
    Inventors: Steven Clark CALKINS, Christopher Roy CARRINGTON, Thomas Bradley KENNEY, Simone CASTELLANI, Albion Richardson FLETCHER, Jr.