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:
Sep. 21, 2021
Filed:
Feb. 22, 2019
Rolls-royce Plc, London, GB;
Rolls-royce Deutschland Ltd & CO KG, Dahlewitz, DE;
John R Mason, Bristol, GB;
Thomas Philip Astley, Berlin, DE;
ROLLS-ROYCE plc, London, GB;
ROLLS-ROYCE DEUTSCHLAND LTD & CO KG, Dahlewitz, DE;
Abstract
A method () and apparatus () for lubrication of a gearbox () of an aircraft engine comprise provision () of oil to the gearbox () through a primary oil system () driven by a core () of the engine () in normal conditions; detection () of windmilling conditions and/or failure of the primary oil system (); and in response to the detected condition or failure, activation () of an electric pump () of an auxiliary oil system (), to provide oil to the gearbox ().
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile