US Patent Issued to GOODRICH on July 8 for "Systems and methods for casting propellant grain" (California, South Dakota Inventors)

ALEXANDRIA, Va., July 9 -- United States Patent no. 12,350,864, issued on July 8, was assigned to GOODRICH Corp. (Charlotte, N.C.).

"Systems and methods for casting propellant grain" was invented by Brian Wilson (Vacaville, Calif.) and Jean C Rodriguez (Watertown, S.D.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Systems and methods for casting solid propellants include a mandrel for forming geometric features in a perforation of a propellant grain. In various embodiments, the mandrel includes a frangible portion that is removed from the propellant grain after the propellant grain has cured around the mandrel. A second portion of the mandrel may be left behind in the propellant grain. The mandrel may inclu...