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:
Mar. 30, 2021
Filed:
Jul. 20, 2018
Flir Unmanned Aerial Systems As, Hvalstad, NO;
Petter Muren, Nesbru, NO;
Trygve Frederik Marton, Slependen, NO;
Ivar Johnsrud, Honefoss, NO;
Pal Hagh Sandberg, Hvalstad, NO;
Christian Moengen, Spikkestad Buskerud, NO;
Jo Eyvin Bjaarstad, Vettre Akershus, NO;
FLIR Unmanned Aerial Systems AS, Hvalstad, NO;
Abstract
The present embodiments disclose a torque dependent and resonant operating thrust-generating rotor assembly including a cyclic pitch control system for controlling tilting moments about a longitudinal rotor blade axis of one or more rotor blades, in order to control the pitch angle of the rotor blades and thereby also the horizontal movements of a helicopter vehicle or a rotary wing aircraft. A rotor torque assembly of the rotor assembly is further configured to operate in resonance, thereby providing a resonant gain effecting a rotational offset in relation to changes in torque generated by the motor.