ALEXANDRIA, Va., June 4 -- United States Patent no. 12,320,589, issued on June 3.

"Energy treatment apparatus for fabric webs" was invented by Michael A. Ellis (Dalton, Ga.).

According to the abstract* released by the U.S. Patent & Trademark Office: "An energy treatment apparatus for a fabric web includes a tenter mechanism that includes a pair of opposing tracks through which a drive chain traverses. The tracks each have an inwardly-facing slot through which a plurality of web gripping elements project to hold an edge of the fabric web. At least one energy applying module has an enclosure with an opening therethrough and at least one energy applying element disposed on either side of the fabric web as the fabric web traverses the energy ...