ALEXANDRIA, Va., June 10 -- United States Patent no. 12,290,855, issued on May 6, was assigned to CHEMEX FOUNDRY SOLUTIONS GMBH (Delligsen, Germany).
"Single-piece feeder body for use in metal casting" was invented by Heiko Schirmer (Delligsen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a single-piece feeder body for use as a component of a two-part or multi-part telescopic feeder insert in metal casting,having a feeder wall which at least partially delimits a feeder cavity for receiving liquid metal, wherein the feeder wall has a passage opening for the liquid metal into the feeder cavity, and an outer surface on which there are arranged at least one outwardly projecting...