ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,428,829, issued on Sept. 30, was assigned to PKG Equipment Inc. (Rochester, N.Y.).
"Trench system" was invented by Stephen Thomas Pontarelli (Rochester, N.Y.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A trench system includes a trench body operable to contain chemicals without corroding. The trench body includes a trench floor having a longitudinal length and a lateral width. A pair of first and second sidewalls is welded to opposing longitudinal perimeters of the trench floor and extend vertically upwards therefrom. Wall support ribs are attached to outer surfaces of the first and second sidewalls and extend laterally outward and vertically upward...