US Patent Issued on May 20 for "Two-stage speed-change output device and electric vehicle using same" (Taiwanese Inventor)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,304,302, issued on May 20.

"Two-stage speed-change output device and electric vehicle using same" was invented by Li-Ho Yao (Taipei, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A two-stage speed-change output device includes a main axle, on which a motor assembly and first and second speed-change assemblies are mounted. The first and second speed-change assemblies are mounted inside an output shell by first and second one-way clutching elements, both operating in a forward direction. The motor assembly is operable to rotate backward to drive the first one-way clutching element to drive the output shell to rotate in the forward direction, while...