ALEXANDRIA, Va., Feb. 26 -- United States Patent no. 12,235,027, issued on Feb. 25, was assigned to DAIKIN INDUSTRIES LTD. (Osaka, Japan).
"Refrigerant charging method" was invented by Takuro Yamada (Osaka, Japan), Atsushi Yoshimi (Osaka, Japan), Eiji Kumakura (Osaka, Japan) and Ikuhiro Iwata (Osaka, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Efficiency in refrigerant charging work is addressed when a refrigerant recovered from the first heat source unit is to be charged to a second heat source unit. In a refrigerant charging method in which a first heat source unit of an already installed refrigeration cycle apparatus in which a refrigeration cycle is to be performed by a refrigerant that circulat...