ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,703,004, issued on Aug. 11, was assigned to Branson Ultrasonics Corp. (Brookfield, Conn.).
"Converter for an ultrasonic welding device having increased arc resistance" was invented by Scott Caldwell (New Milford, Conn.), John Maneca (Waterbury, Conn.) and Eugene D. Pollastro (Bethel, Conn.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A converter for an ultrasonic welder includes a stack of piezoelectric disks alternately stacked with metal conductor disks in between. A pair of driver plates are disposed on opposite ends of the stack of piezoelectric disks. The piezoelectric disks include an outer perimeter surface that extends radially outward beyond ...