ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,555,446, issued on Feb. 17, was assigned to Schlage Lock Co. LLC (Carmel, Ind.).
"Audible indicator for access control systems" was invented by Phillip Palmer (Indianapolis), John D. Stalter (Indianapolis), Naveena Balenahalli Nagaraju (Ramanagara District, India), Jack R. Lehner Jr. (Indianapolis) and Rockwood T. Roberts III (Carmel, Ind.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A motor assembly is provided that includes an audible indicator for an access control device for a door, such as an exit device or an auto-operator. The audible indicator is configured to provide an audible output in response to a signal that initiates operation of the mo...