US Patent Issued to Siemens Energy, RAYTHEON TECHNOLOGIES on June 3 for "Investment casting process for hollow components" (Florida, Virginia Inventors)

ALEXANDRIA, Va., June 4 -- United States Patent no. 12,318,837, issued on June 3, was assigned to Siemens Energy Inc. (Orlando, Fla.) and RAYTHEON TECHNOLOGIES Corp. (Waltham, Mass.).

"Investment casting process for hollow components" was invented by Gary Merrill (Orlando, Fla.), Andrew Burns (Longwood, Fla.), Michael Appleby (Crozet, Va.), Iain Fraser (Ruckersville, Va.) and John Paulus (Afton, Va.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An investment casting process for a hollow component such as a gas turbine blade utilizing a ceramic core (10) that is cast in a flexible mold (24) using a low pressure, vibration assisted casting process. The flexible mold is cast from a master tool (14) machined fr...