ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,525, issued on Nov. 18, was assigned to AUT Ventures Ltd. (Auckland, New Zealand).
"Stepped cylindrical piezoelectric transducer" was invented by Ahmed Al-Jumaily (Auckland, New Zealand) and Ata Meshkinzar (Auckland, New Zealand).
According to the abstract* released by the U.S. Patent & Trademark Office: "A cylindrical piezoelectric transducer is described the cylindrical piezoelectric transducer comprising: a tube having inner and outer surfaces and a first inner diameter, first outer diameter and a first thickness; at least one stepped band having a stepped inner diameter, stepped outer diameter and stepped thickness and wherein the stepped thickness is less than the first thic...