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:
Dec. 31, 2024
Filed:
Jul. 11, 2022
Applicant:
Orbital Research Inc., Cleveland, OH (US);
Inventors:
Matthew C. Birch, Madison, AL (US);
Zak Sowle, Bellbrook, OH (US);
Assignee:
Orbital Research Inc., Cleveland, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/30 (2006.01); B64C 11/06 (2006.01); B64C 27/68 (2006.01);
U.S. Cl.
CPC ...
B64C 11/30 (2013.01); B64C 11/06 (2013.01); B64C 27/68 (2013.01);
Abstract
Multiple redundant harmonic drive motors on a rotor head actuate the angle of attack of rotor blades at the rotor blade roots, providing collective control that, in combination with a system for providing cyclic control on the rotor blades, eliminates the need for a swashplate, thereby advantageously reducing the weight and maintenance cost of a helicopter, increasing its reliability, and reducing its vulnerability to ballistic attack.