ALEXANDRIA, Va., Sept. 15 -- United States Patent no. 12,733,785, issued on Sept. 15, was assigned to ZHONGSHAN UNION OPTECH RESEARCH INSTITUTE Co. LTD. (Zhongshan, China) and Linksmart Technology (Zhongshan) Co. Ltd. (Zhongshan, China).
"Anti-tangle roller brush, roller brush mechanism and sweeping robot" was invented by Maolin Li (Zhongshan, China) and Wenguo Chen (Zhongshan, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an anti-tangle roller brush, a roller brush mechanism, and a sweeping robot. The anti-tangle roller brush includes a roller brush hosing and a cutting assembly. The roller brush hosing is provided with a cavity and a through slot communicating with the cavity. One end ...