US Patent Issued to 3D SYSTEMS on May 26 for "Stereolithography apparatus for improving planarity of a transparent sheet" (California Inventors)

ALEXANDRIA, Va., May 26 -- United States Patent no. 12,636,827, issued on May 26, was assigned to 3D SYSTEMS INC. (Rock Hill, S.C.).

"Stereolithography apparatus for improving planarity of a transparent sheet" was invented by Nickolas M. Clinton (Carlsbad, Calif.), Charles W. Hull (Santa Clarita, Calif.), Grant Draper (Escondido, Calif.), David Sabo (San Diego) and Samuel David Rohrbach (San Diego).

According to the abstract* released by the U.S. Patent & Trademark Office: "A 3D printing system includes a build vessel, a carriage, and a light engine. The build vessel includes a vessel base having a downward extending tension ring that tensions a transparent sheet. The transparent sheet laterally bounds a build plane that is defined over o...