US Patent 7900789 Non-removable finish and closure system

Non-removable finish and closure finish system that resists rotational movement so as to be rendered substantially non-removable by the consumer. The closure and finish have complementary thread segments with ratchet-type engaging portions or lugs extending below thread segments on the finish and closure, the closure lugs being disposed on an inner skirt spaced radially inwardly from an outer skirt to inhibit access to the interlocking lugs.