US Patent Issued to JD RUSSELL on April 14 for "Device and method for making concrete expansion joint inserts" (Michigan, Arizona Inventors)

ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,074, issued on April 14, was assigned to JD RUSSELL COMPANY (Utica, Mich.).

"Device and method for making concrete expansion joint inserts" was invented by Charles Snooks Sr. (Shelby Township, Mich.), Bradley Danna (Shelby Township, Mich.), Nicholas Danna (Tucson, Ariz.) and Marc Danna (Tucson, Ariz.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An illustrative example embodiment of a method of making a concrete expansion joint insert includes moving a material including a resin having a melt temperature through a die having a flow passage that ends in an exit having a selected geometry, increasing a temperature of only a segment of the die near t...