Plastic captive seal closure and spout

Claim 1

A CAPTIVE CLOSURE FOR A CONTAINER OF THE TYPE HAVING AN OUTWARDLY DIRECTED CLOSURE RETAINING RIB, SAID CLOSURE COMPRISING A LOWER MEMBER INCLUDING AN UPPER TRANSVERSE PORTION ADAPTED TO EXTEND ACROSS A CONTAINER MOUTH AND FORM A SEAL THEREWITH, AND A DEPENDING FIRST SKIRT FOR RECEPTION WITHIN THE CONTAINER MOUTH TO CENTER SAID LOWER MEMBER; AND AN UPPER DISPENSING MEMBER, SAID UPPER MEMBER INCLUDING A LOWER PORTION, A SECOND SKIRT DEPENDING FROM SAID LOWER PORTION AND TELESCOPICALLY RECEIVING SAID UPPER PORTION, SAID SECOND SKIRT TERMINATING IN AN INWARDLY DIRECTED FLANGE FOR INTERLOCKING BENEATH THE CONTAINER CLOSURE RETAINING RIB, AND A SPOUT PROJECTING UPWARDLY FROM SAID LOWER PORTION, SAID SPOUT HAVING A BORE OPENING THROUGH SAID LOWER PORTION; INTERLOCKING MEANS ON SAID LOWER MEMBER AND SAID UPPER MEMBER RETAINING SAID UPPER MEMBER ON SAID LOWER MEMBER FOR RELATIVE ROTATION, A DISPENSING BORE THROUGH SAID LOWER MEMBER UPPER PORTION, AN UPWARDLY PROJECTING LOCKING RING ON SAID LOWER MEMBER UPPER PORTION SURROUNDING SAID LOWER MEMBER BORE FOR SEATING IN THE LOWER END OF SAID SPOUT BORE, AND A RECESS IN THE UNDERSIDE OF SAID LOWER PORTION CIRCUMFERENTIALLY SPACED FROM SAID SPOUT BORE FOR RECEIVING SAID LOCKING RING TO RETAIN SAID UPPER MEMBER IN A LOWER MEMBER BORE SEALING POSITION.