ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,059, issued on Sept. 30, was assigned to Zevex Inc. (Salt Lake City).
"Ultrasonic handpiece assembly" was invented by Larry Clayton (Farmington, Utah).
According to the abstract* released by the U.S. Patent & Trademark Office: "An ultrasonic handpiece assembly has a horn, a rear mass attached to a rear end of the horn, a needle attached to a front end of the horn, a stack of piezoelectric elements arranged coaxially about the horn, and an L-T spring arranged coaxially about the horn behind the stack. The horn includes a low gain section in front of the stack and a high gain section in front of the low gain section. The assembly has a first L-T mode, a T mode, a second L-T mode, ...