ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,208,989, issued on Jan. 28, was assigned to HANSON LIFT (SUZHOU) Co. LTD..
"Embedded type updating escalator" was invented by Xueming Zhu (Jiangsu, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "An embedded type updating escalator, combined with an original truss of an original escalator for installation. The embedded type updating escalator includes a truss assembly, as well as stairs, stair guide rails, stair chains, a traction machine, a skirt panel, inner and outer cover plates, a handrail system, and an electrical control system which are combined and mounted with the truss assembly. The truss assembly includes multiple sections. The transver...