ALEXANDRIA, Va., July 16 -- United States Patent no. 12,357,004, issued on July 15, was assigned to ALI GROUP S.R.L.-CARPIGIANI (Cernusco sul Naviglio, Italy).
"Double membrane valve with interposed ring" was invented by Roberto Lazzarini (Reggio Emilia, Italy) and Federico Tassi (Bologna, Italy).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pneumatically actuated valve includes a valve body, an inlet duct connected to the valve body and an outlet duct connected to the same valve body, a shut-off valve acting to selectively interrupt or allow the connection between the inlet duct and the outlet duct, a control chamber associated with the valve body and includes a first deformable membrane and a second defo...