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. 02, 2021
Filed:
Feb. 26, 2019
Applicant:
Flir Unmanned Aerial Systems As, Hvalstad, NO;
Inventors:
Pal H. Sandberg, Hvalstad, NO;
Petter Muren, Nesbru, NO;
Trygve F. Marton, Hvalstad, NO;
Ivar Johnsrud, Hvalstad, NO;
Assignee:
FLIR Unmanned Aerial Systems AS, Hvalstad, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B64C 11/34 (2006.01); B64C 11/44 (2006.01); B64C 27/68 (2006.01); B64C 27/14 (2006.01); B64C 11/32 (2006.01); H02P 5/753 (2006.01); B63H 3/06 (2006.01);
U.S. Cl.
CPC ...
B64C 11/34 (2013.01); B64C 11/32 (2013.01); B64C 11/44 (2013.01); B64C 27/14 (2013.01); B64C 27/68 (2013.01); H02P 5/753 (2013.01); B63H 3/06 (2013.01); B64C 2201/024 (2013.01); B64C 2201/042 (2013.01); B64C 2201/165 (2013.01);
Abstract
The present invention relates to a rotor assembly where associated electric motors are configured to rotate the rotor, control the collective pitch of the rotor/assembly, and/or control the cyclic pitch of the rotor/assembly, by varying the relative rotational angle between two or more of the associated electric motors.