ALEXANDRIA, Va., June 25 -- United States Patent no. 12,337,549, issued on June 24, was assigned to Fit-Line Inc. (Santa Ana, Calif.).

"Method and apparatus to assemble a high purity liquid distribution system" was invented by Frank F. Hayes Jr. (Costa Mesa, Calif.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method and apparatus for assembling a high purity liquid distribution system is described. A distal end portion of the tube is heated then pushed over a sleeve so that the distal end portion can have a shrink seal fit over the sleeve to mitigate accidental or inadvertent pull out of the tube from a fitting. Other benefits are also achieved such as minimal flow restriction of the liquid flowing throu...