ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,746, issued on May 20.
"Method and apparatus for flushing contaminants from a container of fluids" was invented by Dennis B. Hansen (New Hampton, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "A contaminant-flushing machine for removing contaminants from a container, such as an engine transmission, air-conditioner coil, or transmission cooler, which includes hoses for coupling to the transmission cooler and a pump for circulating fluid through the hoses and the transmission cooler, the flushing machine being configured to terminate all circulating of fluid when a pressure drop is detected during times when the fluid is circulating only in the p...