ALEXANDRIA, Va., April 21 -- United States Patent no. 12,606,965, issued on April 21, was assigned to NINGBO ROABY TECHNOLOGY INDUSTRIAL GROUP Co. LTD. (Ningbo, China).
"Road paver" was invented by Bin Xu (Ningbo, China), Su Xu (Ningbo, China), Qi You (Ningbo, China), Jianhua Lyu (Ningbo, China), Zhengwu Liu (Ningbo, China), Yi Wang (Ningbo, China) and Yu Zhang (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A road paver includes: a head; a body including a front end and a tail end; a feeding device, disposed in the front end to convey polyurethane concrete, and the feeding device including a stirring device; a stone paving device, disposed on the tail end to spread crushed stone over a road, a...