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:
May. 10, 2022
Filed:
Jun. 25, 2018
Safran Transmission Systems, Colombes, FR;
Jean-Charles Michel Pierre Di Giovanni, Moissy-Cramayel, FR;
Alexis Claude Michel Dombek, Moissy-Cramayel, FR;
Florian Rappaport, Moissy-Cramayel, FR;
SAFRAN TRANSMISSION SYSTEMS, Colombes, FR;
Abstract
A ring gear () for an epicyclic or planetary reduction gear () of a turbomachine, in particular of an aircraft, said ring gear extending about an axis and comprising first and second coaxial annular elements () and comprising, respectively, two inner annular toothing sets () of different orientation, said first and second annular elements further comprising, respectively, first and second radially outer annular flanges () for attaching said first and second elements to each other, characterised in that one of said first and second flanges comprises, at its outer periphery, a cylindrical centring rim () configured to cooperate with the outer periphery of the other of said first and second flanges.