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:
Jul. 25, 2023
Filed:
Oct. 20, 2021
Applicant:
Textron Innovations Inc., Providence, RI (US);
Inventors:
Ezra Mike Tiprigan, North Richland Hills, TX (US);
Charles Hubert Speller, Flower Mound, TX (US);
Assignee:
Textron Innovations Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 27/14 (2006.01); B64F 5/10 (2017.01); B64C 27/06 (2006.01); B64C 29/00 (2006.01);
U.S. Cl.
CPC ...
B64C 27/14 (2013.01); B64C 27/06 (2013.01); B64C 29/0033 (2013.01); B64F 5/10 (2017.01);
Abstract
A propulsion assembly for a rotorcraft includes a raceway having a tapered inner surface and a mast configured to receive the raceway at a raceway receiving station. The mast has a tapered outer surface at the raceway receiving station. The propulsion assembly includes a mast bearing assembly having a plurality of bearings facing the mast to engage the raceway. The tapered inner surface of the raceway is friction welded to the tapered outer surface of the mast at the raceway receiving station to form a tapered friction weld line.