US Patent Issued to Renishaw on July 29 for "Powder bed fusion apparatus and methods" (British, French Inventors)

ALEXANDRIA, Va., July 30 -- United States Patent no. 12,370,484, issued on July 29, was assigned to Renishaw PLC (Wotton-under-Edge, Great Britain).

"Powder bed fusion apparatus and methods" was invented by Ceri Brown (Plaisance-du-Touch, France) and Daniel John Curtis (Stone, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method of filtering gas in a powder bed fusion apparatus, wherein an object is built layer-by-layer by selective solidification of a powder bed, and a powder bed fusion apparatus for executing the method. The apparatus includes a build chamber housing the powder bed, a gas circuit for recirculating the gas, including passing the gas over the powder bed within the build cham...