ALEXANDRIA, Va., Feb. 5 -- United States Patent no. 12,215,793, issued on Feb. 4, was assigned to PUL PRODUCTS LLC (Phoenix).
"Pool cleaning system controller valve" was invented by Steven James Goettl (Phoenix) and Ross Anthony DiJulio (Phoenix).
According to the abstract* released by the U.S. Patent & Trademark Office: "A controller valve with a valve body and a valve cartridge. The valve body has a water inlet, a primary water outlet, and a bypass water outlet. The valve cartridge is positioned within the valve body and has a diaphragm that fluidly isolates an upper chamber from a lower chamber within the valve cartridge. A piston is attached to the diaphragm and is configured to move within the valve cartridge between an upper positio...