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. 26, 2026
Filed:
Nov. 18, 2024
Rolls-royce North American Technologies Inc., Indianapolis, IN (US);
Robert W. Heeter, Indianapolis, IN (US);
Daniel E. Molnar, Jr., Indianapolis, IN (US);
Rolls-Royce North American Technologies Inc., Indianapolis, IN (US);
Abstract
A fan case assembly includes an annular case including a first circumferentially-extending slot formed therein, and a tip treatment segment arranged within the first slot and retained therein. The tip treatment segment includes a radially inwardly-facing segment surface having a tip treatment groove formed therein. The tip treatment segment is selectively removable from and insertable into the first slot and is slidable within and along the first slot such that the tip treatment segment is configured to be selectively positioned within the first slot so as to alter the portion of a flow path across the annular case in order to control stall margin of the gas turbine engine and optimize performance of the gas turbine engine.