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:
Nov. 16, 2021
Filed:
Feb. 05, 2019
Applicant:
Lockheed Martin Corporation, Bethesda, MD (US);
Inventors:
Byung-Young Min, Trumbull, CT (US);
Patrick Ormande Bowles, Glastonbury, CT (US);
Brian Ernest Wake, Monroe, CT (US);
Margaret G. Battisti, Naugatuck, CT (US);
Peter F. Lorber, Southbury, CT (US);
Assignee:
LOCKHEED MARTIN CORPORATION, Bethesda, MD (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 27/10 (2006.01); B64C 27/32 (2006.01); F04D 29/18 (2006.01);
U.S. Cl.
CPC ...
B64C 27/10 (2013.01); B64C 27/32 (2013.01); F04D 29/181 (2013.01);
Abstract
A rotor assembly includes a first rotor hub and a second rotor hub. The second rotor hub is coupled to the first rotor hub via a shaft fairing. The first rotor hub has a flat first surface coupled to the shaft fairing and a curved second surface opposite the flat first surface. The second rotor hub has a flat first surface on the lower side and a curved second surface opposite the flat first surface.