ALEXANDRIA, Va., Sept. 1 -- United States Patent no. 12,722,825, issued on Sept. 1, was assigned to DYNAMIC AIR LTDA (Sao Paulo).

"Retractable tank loading device and its use" was invented by Horacio N. Paez (Sao Paulo) and Gregory J. Steele (Saint Paul, Minn.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a retractable device for loading particles of material into a tank, the device comprising: a hopper, a pulley, and a sleeve connected to the pulley. The hopper is configured to receive particles of material and to direct the received particles into the sleeve. The sleeve is configured to carry the particles of material received from the hopper into the tank. The length of t...