ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,738,827, issued on Sept. 15.

"Telescopic motor with telescopic rotor assembly" was invented by Jiaze Yang (Dongguan, China), XueFei Cai (Dongguan, China) and Wenbin Guan (Dongguan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A telescopic motor is provided, including a housing assembly, a stator assembly, at least one guide member, and a telescopic rotor assembly. The stator assembly includes a core structure, the core structure is limitably fixed in the housing assembly, the core structure includes core bodies and a coil bobbin structure, the core bodies are circumferentially connected in sequence, the coil bobbin structure passes through the ...