US Patent Issued to Mitsubishi Electric on April 29 for "Scroll casing of centrifugal fan, centrifugal fan, air-conditioning apparatus and refrigeration cycle apparatus including the scroll casing" (Japanese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,977, issued on April 29, was assigned to Mitsubishi Electric Corp. (Tokyo).

"Scroll casing of centrifugal fan, centrifugal fan, air-conditioning apparatus and refrigeration cycle apparatus including the scroll casing" was invented by Hiroyasu Hayashi (Tokyo), Takuya Teramoto (Tokyo), Takahiro Yamatani (Tokyo), Tomohiro Nagano (Tokyo), Yuki Hara (Tokyo), Ryo Horie (Tokyo), Takashi Yamaguchi (Tokyo) and Kota Nagano (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A scroll casing has a scroll portion, a discharge portion provided with a discharge port, and a tongue portion. An extended plate has, in a cross section obtained by cutting in a thicknes...