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:
Feb. 02, 2021
Filed:
Jan. 25, 2017
Sikorsky Aircraft Corporation, Stratford, CT (US);
Krzysztof Kopanski, Trumbull, CT (US);
Daniel A. Griffiths, Woodbridge, CT (US);
Joshua A. Breon, Lafayette, IN (US);
Jonathan K. Wong, Trumbull, CT (US);
Benjamin Isabella, Hamden, CT (US);
Michael Skylar Lawson, Derby, CT (US);
SIKORSKY AIRCRAFT CORPORATION, Stratford, CT (US);
Abstract
A tail rotor blade for a helicopter includes a blade body defining a longitudinally extending spar cavity, a leading edge forward of the spar cavity, and a trailing edge aft of the spar cavity. Upper and lower airfoil surfaces extend from the leading edge to the trailing edge on opposite sides of the spar cavity. The upper and lower airfoil surfaces define between one another a constant airfoil segment and transition airfoil segments disposed longitudinally adjacent to the constant airfoil segment on inboard and outboard sides of the constant airfoil segment.