ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,440,072, issued on Oct. 14, was assigned to GOJO Industries Inc. (Akron, Ohio).
"Sequentially activated multi-diaphragm foam pumps, refill units and dispenser systems" was invented by Donald R. Harris (Mogadore, Ohio), John J. McNulty (Broadview Heights, Ohio), Aaron D. Marshall (Uniontown, Ohio), Daniel M. Willis (Clinton, Ohio) and Nick E. Ciavarella (Seven Hills, Ohio).
According to the abstract* released by the U.S. Patent & Trademark Office: "A foam dispenser includes a housing, a drive motor, and a foam pump. The foam pump includes a pump housing, and a molded multi-chamber diaphragm. The molded multi-chamber diaphragm includes a liquid pump diaphragm having a liquid pump stem ...