ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,729,674, issued on Sept. 8, was assigned to HACH COMPANY (Loveland, Colo.).
"Multi-reagent peristaltic pump dispensing" was invented by Brian J. Dreiling (Windsor, Colo.).
According to the abstract* released by the U.S. Patent & Trademark Office: "An embodiment provides a method for moving precise volumes of fluid using a linear peristaltic pump, including: operating the pump for a first portion of a pump cycle, wherein the operating the first portion dispenses a first reagent, wherein the pump comprises a motor and a cam; pausing the pump for a period of time; and operating the pump for a second portion of the pump cycle, wherein the operating the second portion dispenses a second r...