ALEXANDRIA, Va., July 9 -- United States Patent no. 12,352,339, issued on July 8, was assigned to Michael Lee Starkey (Canyon, Texas).
"SIVRT geartrain" was invented by Michael Lee Starkey (Canyon, Texas) and Robert Eugene Arnot (Albuquerque, N.M.).
According to the abstract* released by the U.S. Patent & Trademark Office: "The SIVRT disclosed includes a unique, ordered geartrain; it allows a large-continuous range of input:output velocity ratios (forward or reverse). This range is controlled by fluid-coupled gearsets which direct the power flow to the output shaft. The SIVRT requires no torque converter or friction clutches and has been designed for fully-loaded work machines which must operate reliably at creep speeds for extended perio...