ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,109, issued on April 29, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Air blower" was invented by Satoshi Nakai (Osaka, Japan), Tetsuya Yamashita (Osaka, Japan) and Hideaki Konishi (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A disadvantage such as loss of life to a bearing of an indoor fan motor may occur when the number of rotations of the indoor fan falls below a predetermined number of rotations. An indoor unit includes a fan, a casing, a first horizontal flap, a second horizontal flap, and an indoor controller. The casing accommodates the fan, and has a blow-out port through which air provided by the fan is blown out. ...