ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,371, issued on Sept. 30, was assigned to Chih-Yung Hsu (Tainan, Taiwan).

"Transmission structure for changing sliding direction of a climber apparatus" was invented by Tsung-Chou Lin (Tainan, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a transmission structure for changing sliding direction of a climber apparatus, which enables an operator to operate the apparatus in an upright position. The transmission structure includes: a base, a support, a first slide rail, a second slide rail, a first transmission unit, a second transmission unit, a first handle slider, a first footplate slider, a second handle slide...