ALEXANDRIA, Va., March 24 -- United States Patent no. 12,585,300, issued on March 24, was assigned to Essex Industries Inc. (St. Louis).
"Collective control system for a rotorcraft" was invented by Charles Culp (Webster Groves, Mo.), Greg Kemner (Cottleville, Mo.) and Bob Hale (Concinnati, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "The control system for attachment to a collective lever in a rotorcraft which comprises a body with an extended horn portion which is generally contoured to provide for a place to rest the palm and grip the collective lever at the end in the form of an open spherical grip as opposed to the more traditional cylindrical grip used to grasp the throttle and/or collective leve...