US Patent Issued to J&P Invesco on Sept. 23 for "Volumetric concrete mixing system, equipment, and method" (Texas, Colorado Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,451, issued on Sept. 23, was assigned to J&P Invesco LLC (Schertz, Texas).

"Volumetric concrete mixing system, equipment, and method" was invented by Paul A. Karam (San Antonio), Henry J. Karam (Golden Ridge, Texas), Gabriel J. Leyva (San Antonio), Stanley R. Peters (Castle Rock, Colo.), David S. Zuniga (San Antonio) and Carlos Medina (San Antonio).

According to the abstract* released by the U.S. Patent & Trademark Office: "A mobile volumetric concrete mixing system includes a suction system that vacuums up trench spoils while a trench is being cut. These trench spoils are then screened on-site for particle size to be reused and mixed with water, cement, and/or other admixtures ...