ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,509,893, issued on Dec. 30.
"Lightweight dual action post-tensioning jack with two handle chuck" was invented by Felix Sorkin (Stafford, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Exemplary embodiments may include a lightweight post-tensioning jack that also maintains a gap in a resting position to avoid potential pinch hazards. The lightweight post-tensioning jack may have dual-handles. It may also include a tendon chuck that is capable of providing enough friction between the chuck and tendon to avoid slippage and tensioning inefficiencies. The chuck assembly may be moved using a slidable handle; that is, one of the dual handles may be fixed...