US Patent 11801977 Package with one-piece closure

A package includes a container and a one-piece closure. The container has a neck portion defining an opening, an external helical thread formation and ratchet catch lugs. The closure fits to the neck portion of the container for closing the opening. The closure includes a first and a second closure portion. The closure includes a top wall portion and an annular skirt portion. The annular skirt portion includes an internal helical thread formation for mating engagement with the external helical thread formation. An interior surface of the annular skirt portion includes helical ratchet teeth threads. At least one of the ratchet catch lugs mechanically catches and locks with a respective one of the helical ratchet teeth threads so as to prevent or inhibit the closure from being removed from the container. The closure opens by flipping via a hinge.