ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,633, issued on May 19, was assigned to Sound Solutions International (Zhenjiang) Co. Ltd. (Zhenjiang City, China).
"Voice coil for an electrodynamic actuator with stacked conductive layers" was invented by Hong-Bi Dong Nguyen (Vienna) and Gustav Otto (Vienna).
According to the abstract* released by the U.S. Patent & Trademark Office: "A voice coil (4, 4a.. 4f) for an electrodynamic actuator (6a.. 6c) is disclosed, which comprises a plurality of conductive open annular strips (15, 15A.. 15n, 15a.. 15h) stacked over one another with insulation layers (18) in-between, wherein ends (Ea.. Eh) of adjacent strips (15, 15A.. 15n, 15a.. 15h) overlap in an overlapping zone (ZO) when viewed ...