ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,902, issued on Jan. 13, was assigned to Windmoller & Holscher KG (Lengerich, Germany).
"Joining/parting unit for film webs" was invented by Christian Schroder (Lengerich, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "An apparatus is configured to separate a two-ply film web having a first ply and a second ply, the plies being joined via two side edges. The apparatus has two lengthwise slitting units that make a lengthwise slit into the first ply, with the slits being at a distance from the side edges. A pressing element moves in a direction orthogonal to that of a plane defined by the film web so as to space apart from one another the two p...