ALEXANDRIA, Va., June 17 -- United States Patent no. 12,313,302, issued on May 27.
"Furnace accessory" was invented by Christopher J. Murray (Chicago), William J. Fienup (Chicago), Chris A. Cunningham (Brownsburg, Ind.) and Thomas Benton Brock (Brownstown, Mich.).
According to the abstract* released by the U.S. Patent & Trademark Office: "In accordance with the principals of the present invention, a furnace unit adapted to be installed in-line with a fuel source of a furnace modulates natural gas or propane to reduce fuel consumption, minimize temperature overshoot, and reduce furnace short cycling. A modulator is contained with the furnace unit. The modulator is in gaseous communication with the in-line gas fuel source. A furnace sensor ...