ALEXANDRIA, Va., Nov. 11 -- United States Patent no. 12,465,145, issued on Nov. 11, was assigned to RUOEY LUNG ENTERPRISE CORP. (Lukang Township, Changhua County, Taiwan).
"Base seat for bed, chair or sofa" was invented by Lung-Tan Shih (Changhua County, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A base seat for being used with a bed, a chair, or a sofa includes a fixation base provided thereon with two longitudinal wheel sets, a first rocking frame having two longitudinal arc rails in contact with the longitudinal wheel sets and two transverse wheel sets thereon, a second rocking frame including two transverse arc rails in contact with the transverse wheel sets, a first actuator disposed to the f...