ALEXANDRIA, Va., March 17 -- United States Patent no. 12,575,580, issued on March 17, was assigned to CENOTIC Engenharia LTDA (Sao Jose, Brazil).
"Poultry foot callus extractor" was invented by Claimir Adolfo Guinzelli (Guaratuba, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "A machine designed to extract calluses from the footpads of poultry-primarily chickens-comprising a cabinet on the inside of which is mounted a pair of chains between which are mounted a plurality of trays having a circular through-opening in the bottom face thereof. Operatively mounted downstream of the chains is a pair of toothed shafts with motorization means and mounted above this region is a smaller chain which is also moto...