US Patent 11466489 Locking device to prevent opening of a door/doors

A locking device intended to prevent opening of a door/doors includes a body, which is capable of being coupled immovably to a door handle and prevents opening of a door/doors. The body is provided with a coupling arrangement adjustable with adjustment elements for locking the handle against an external surface of the door by being propped immovably on a vertical frame member of the door or on a handle of the adjacent door.