ALEXANDRIA, Va., June 19 -- United States Patent no. 12,331,449, issued on June 17, was assigned to SAMSUNG ELECTRONICS Co. LTD. (Suwon-si, South Korea).
"Washing machine" was invented by Hak Jae Lee (Suwon-si, South Korea), Jun Ho Kim (Suwon-si, South Korea) and Jeong Haeng Lee (Suwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A washing machine comprises a housing, a drum rotatably disposed inside the housing, a driving shaft configured to transfer a rotational force from a driving motor of the washing machine to the drum, and a driving shaft flange configured to connect the driving shaft to the drum. The driving shaft flange comprises a first surface, a second surface substantially para...