ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,148, issued on Aug. 11, was assigned to Formlabs Inc. (Somerville, Mass.).
"Methods and systems for film tensioning in an additive fabrication device" was invented by Joseph Johnson (Norwood, Mass.) and Brian Smith (Arlington, Mass.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method and system for tensioning film tank in a liquid photopolymer container designed for use in a stereolithography (SLA) additive fabrication device is disclosed. The liquid photopolymer container comprises a tank frame, a film clamp that attaches to the tank frame and secures a film between the clamp and the tank frame, and a film positioned between the clamp and the b...