ALEXANDRIA, Va., Sept. 24 -- United States Patent no. 12,740,517, issued on Sept. 22, was assigned to Positec Power Tools (Suzhou) Co. LTD. (Suzhou, China).
"Blowing suction device" was invented by Xuefeng Yu (Suzhou, China) and Shiping Jiao (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A single-tube blower vacuum includes a body, an airflow generation apparatus, a collection apparatus, and a blowing-suction tube. The airflow generation apparatus has an air inlet portion and an air outlet portion. The airflow generation apparatus is rotatably mounted on the body. The airflow generation apparatus rotates relative to the body to enable the single-tube blower vacuum to switch between a suction m...