ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,742,460, issued on Sept. 22, was assigned to Unada Co. Ltd. (Bangmuang, Thailand).
"Fan shroud with flow directing deflectors" was invented by Eduardo Strle (Mueang Nonthaburi, Thailand) and Vinicius Burigo Neto (Florianopolis, Brazil).
According to the abstract* released by the U.S. Patent & Trademark Office: "A shroud for an axial fan includes a plurality of air-deflector vanes positioned on the pressure side of the fan impeller. Each vane has a surface oriented at an angle to the axial direction that is between 0 and 90 degrees. Preferably, the angle is between 40 and 60 degrees. Each vane has a longitudinal axis and the vanes are oriented so that these axes are approximately but...