ALEXANDRIA, Va., Dec. 23 -- United States Patent no. 12,501,912, issued on Dec. 23, was assigned to S3 Group Ltd. (Calgary, Canada).
"Locking device for preventing freewheeling of an aeration fan rotor" was invented by Al Marques (Swift Current, Canada) and James Braun (Herbert, Canada).
According to the abstract* released by the U.S. Patent & Trademark Office: "A locking device for preventing freewheeling of an aeration fan rotor. The locking device comprises an elongated body having a predetermined length. The elongated body is adapted for being disposed through an opening of a fan housing containing the aeration fan rotor therein such that in a first position a first end portion of the elongated body is enabled to interact with the aer...