US Patent Issued to Henkel on June 17 for "Systems and methods for vacuum impregnation" (Michigan, Indiana Inventors)

ALEXANDRIA, Va., June 19 -- United States Patent no. 12,330,184, issued on June 17, was assigned to Henkel AG & Co. KGaA (Duesseldorf, Germany).

"Systems and methods for vacuum impregnation" was invented by William G. Kozak (Waterford, Mich.) and Daniel B. Irvin (Albany, Ind.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum impregnation system and processes that subject a part to a vacuum, immerse the part in a polymer impregnating liquid, and apply positive pressure to the part to introduce the polymer impregnating liquid into part porosities, releasing the pressure to atmospheric pressure and solidifying the polymer impregnating liquid, preferably without an active polymerization step."

The patent ...