ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,196, issued on Jan. 27, was assigned to FLIR Unmanned Aerial Systems ULC (Vancouver, Canada).
"Variable blade pitch systems and methods" was invented by Dmytro Silin (Waterloo, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods are provided to control a rotor blade pitch. In one example, a system comprises a ratchet mechanism comprising a ratchet wheel configured to be rotated by a motor about a first axis. The ratchet mechanism comprises one or more followers each of which is coupled to the ratchet wheel. The ratchet wheel rotates the one or more followers in a first direction about the first axis when the ratchet wheel is ro...