US Patent Issued to Axxiom Manufacturing on Oct. 7 for "Pop-up valve for managing backflow" (Texas Inventor)

ALEXANDRIA, Va., Oct. 8 -- United States Patent no. 12,435,804, issued on Oct. 7, was assigned to Axxiom Manufacturing Inc. (Fresno, Texas).

"Pop-up valve for managing backflow" was invented by Phuong Taylor Nguyen (Richmond, Texas).

According to the abstract* released by the U.S. Patent & Trademark Office: "A pop-up valve or valve assembly operable to manage backflow, the assembly configured with a stem or stem portion. The assembly includes a valve sleeve disposed on the stem. The valve sleeve is configured to engage the stem. A stem outside diameter is smaller than an inside diameter of the valve sleeve, such that the sleeve is able to move freely on the stem and also provide a restricted passage for airflow."

The patent was filed on ...