Dispensing cap having frangible positive sealing means

Claim 1

IN A CAP FOR DISPENSING MATERIAL FROM A CONTAINER, A BASE PORTION, SAID BASE PORTION HAVING AN OUTER CYLINDRICAL SKIRT, SAID SKIRT HAVING THREADS FORMED INTERNALLY THEREOF FOR ENGAGEMENT WITH THE THREADED NECK OF A CONTAINER, A SLEEVE CONNECTED TO SAID SKIRT INTERNALLY AND COAXIALLY THEREOF, SAID SKIRT BEING SPACED FROM SAID SLEEVE, AN ANNULAR BOTTOM WALL EXTENDING INWARDLY OF SAID SLEEVE AND TERMINATING IN A SPINDLE, SAID SPINDLE BEING COAXIAL WITH AND SPACED FROM SAID SLEEVE TO FORM AN ANNULAR CHANNEL SURROUNDING THE SPINDLE, SAID ANNULAR BOTTOM WALL HAVING AN OPENING FORMED THEREIN, FRANGIBLE MEANS SURROUNDING SAID OPENING AND SEALING OFF THE SAME, A CAP MEMBER ROTATABLY MOUNTED ON SAID BASE PORTION, SAID CAP MEMBER HAVING A TOP PORTION FORMED WITH AN OUTLET HOLE, A COLLAR DEPENDING FROM SAID TOP PORTION AND EXTENDING INTO SAID ANNULAR CHANNEL, SAID COLLAR HAVING A CUTTER LUG EXTENDING THEREFROM AND INTO SAID CHANNEL, SAID FRANGIBLE SEALING MEANS BEING SEVERED BY SAID CUTTER LUG UPON THE INITIAL ROTATION OF SAID CAP MEMBER, SAID COLLAR AND CUTTER LUG HAVING A CHANNEL FORMED THEREIN LEADING TO SAID OUTLET HOLE, SAID SPINDLE HAVING A RECESS ON THE OUTER SURFACE THEREOF IN AXIAL ALIGNMENT WITH SAID OPENING, SAID CHANNEL FORMATION BROUGHT INTO REGISTER WITH SAID RECESS AND SAID OPENING UPON THE ROTATION OF SAID CAP MEMBER TO ALLOW A FLOW OF MATERIAL THROUGH THE CAP AND OUT SAID OUTLET HOLE, FLOW THROUGH THE CAP BEING PREVENTED WHEN SAID CHANNEL AND RECESS ARE OUT OF REGISTER BY MEANS OF THE ROTATION OF SAID CAP MEMBER.