ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,766,538, issued on Oct. 20, was assigned to YUYAO AOHONG PLASTIC Co. LTD (Ningbo City, China).
"Small spray pump head" was invented by Honghu Huang (Ningbo City, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a compact spray pump head that addresses the inconveniences and high production costs associated with existing similar products. Specifically, it tackles technical issues and design flaws such as poor spray effectiveness and the occurrence of back suction. The pump head is the inclusion of a large circular plunger hole at the liquid outlet, the outer diameter of the plunger hole within the large circle is sequ...