US Patent Issued on Sept. 23 for "Upside-down sprayer with an auxiliary air conducting device for liquid pumping" (Taiwanese Inventors)

ALEXANDRIA, Va., Sept. 23 -- United States Patent no. 12,420,299, issued on Sept. 23.

"Upside-down sprayer with an auxiliary air conducting device for liquid pumping" was invented by Ching-Chung Chan (Taichung, Taiwan) and Chun-Ho Chu (Taichung, Taiwan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed is an upside-down sprayer with an auxiliary air conducting device for liquid pumping, including a container, a nozzle, and a dip tube equipped with a switching valve near its upper end, which has a valve casing, a valve ball, and an inverted liquid pumping port. An auxiliary air conducting device is disposed adjacent to the switching valve and includes a connection part, a guide seat, and a projecting tu...