ALEXANDRIA, Va., May 26 -- United States Patent no. 12,635,674, issued on May 26.
"Automated magnetic rotary aquarium glass scraper and scratch remover" was invented by Michael D. McFetters (Saint Charles, Ill.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for scraping and removing algae buildup from the inside surface of aquarium glass, and smoothing out scratches on the glass. It comprises two disk subassemblies, the external and the internal. The internal subassembly incorporates magnets and a scraper having multiple blades, designed to function within the internal space of the aquarium, submerged in water or otherwise. The external disk subassembly incorporates a swivel, swivel housing, magnets...