ALEXANDRIA, Va., March 3 -- United States Patent no. 12,565,894, issued on March 3, was assigned to Broan-NuTone LLC (Hartford, Wis.).
"Ventilation system with integrated drive system" was invented by Tom Dare (Hartford, Wis.) and Santosh Narasimhan (Hartford, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A ventilating fan has a fan housing formed to define an interior space, an inlet opening, and an outlet opening spaced apart from the inlet opening, a fan wheel arranged to lie within the interior space, the fan wheel comprising a blade hub and a plurality of fan blades from the blade hub, and a fan-wheel rotation drive assembly configured to rotate the plurality of fan blades about a rotation axis, t...