ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,256, issued on Jan. 20, was assigned to SIG Services AG (Neuhausen am Rheinfall, Switzerland).
"Sealing device and method for sealing equipment elements to workpieces by means of ultrasound" was invented by Martin Backes (Heinsberg, Germany), Sven Hagen (Juchen, Germany) and Paul Kromm (Niederzier, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A sealing device for sealing equipment elements to workpieces, in particular in the form of a composite laminate, by means of ultrasound, with a sonotrode for generating an ultrasound, with a sealing surface for transmitting the ultrasound to the equipment element and/or the workpiece, with an anvil o...