US Patent Issued on April 14 for "Methods for assembling a multi-conic preform and manufacturing a semi-ellipsoidal shell using the multi-conic preform" (Washington Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,601,449, issued on April 14.

"Methods for assembling a multi-conic preform and manufacturing a semi-ellipsoidal shell using the multi-conic preform" was invented by Matthew Michael Dethlefsen (Normandy Park, Wash.), Michael Smith Brendel (Snoqualmie, Wash.) and William Thomas Johnson IV (Kent, Wash.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A semi-ellipsoidal, semi-toroidal, or toroidal shell includes an annular sheet metal wall that is longitudinally segmented so as to include a plurality of annular wall segments. Each of the plurality of annular wall segments is joined to an adjacent wall segment by a respective latitudinal wall weld. Also discl...