US Patent Issued to Graphic Packaging International on Nov. 4 for "Expansible press plunger, an attachment unit for attaching a container element to a container body and a method for sealing a packaging container" (Swedish Inventor)

ALEXANDRIA, Va., Nov. 6 -- United States Patent no. 12,459,690, issued on Nov. 4, was assigned to Graphic Packaging International LLC (Atlanta).

"Expansible press plunger, an attachment unit for attaching a container element to a container body and a method for sealing a packaging container" was invented by Per Hagelqvist (Lund, Sweden).

According to the abstract* released by the U.S. Patent & Trademark Office: "A radially expansible press plunger has a base plate, a first expansion tool and a second expansion tool. The first expansion tool and the second expansion tool are movable in relation to each other in the axial direction. The first expansion tool has at least one inclined plane surface. The second expansion tool has at least one ...