Closure cap for waxed paper cup

Claim 1

A CLOSURE FOR WAXED CUPS HAVING A ROLLED EDGE ABOUT THEIR UPPER OPEN ENDS, COMPRISING: A FLANGED CAP ADAPTED TO SEAT IN THE OPEN END OF SAID CUP AND CONSISTING OF (1) A PIE SHAPED MEMBER HAVING TWO STRAIGHT SIDES AND A FLANGE ON SAID CURVED THIRD SIDE; (2) A FLAT ROUND MEMBER HAVING A PERIPHERAL FLANGE GENERALLY SIMILAR TO THE SHAPE OF THE ROLLED EDGE OF THE CUP ON WHICH IT SEATS, SAID ROUND MEMBER HAVING A PIE SHAPED PIECE CUT AWAY THEREFROM, THE AREA OF SAID PIE SHAPED PIECE CUT AWAY GREATER THAN THE AREA OF THE PIE SHAPED PIECE CUT AWAY FROM SAID ROUND MEMBER, SAID PIE SHAPED MEMBER BEING DISPOSED ABOVE SAID ROUND MEMBER SO AS TO COVER THE PIE-SHAPED OPENING IN SAID ROUND MEMBER AND (3) A RIVET PASSING THROUGH BOTH OF SAID MEMBERS AND SECURING THEM TO ONE ANOTHER WHILE PERMITTING SAID PIE SHAPED MEMBER TO ROTATE AND SLIDE ON THE SURFACE OF SAID ROUND MEMBER WHEN SAID ROUND MEMBER IS HELD IN ENGAGEMENT WITH THE CUP, THE FLANGE ON SAID ROUND MEMBER BEING THINNED ADJACENT SAID CUT AWAY PORTION TO FACILITATE SAID SLIDING MOVEMENT; AND MEANS FOR BREAKING THE SEAL BETWEEN SAID CAP AND SAID CUP TO PERMIT IMBIBITION OF THE LIQUID CONTENTS OF SAID CUP COMPRISING A TEAR STRING KNOTTED AT BOTH ENDS, HAVING ONE END PASSING THROUGH SAID CAP AND AT LEAST A PORTION OF THE STRING BETWEEN SAID KNOTTED ENDS BEING DISPOSED BENEATH THE PERIPHERAL FLANGE ON SAID CAP AND BETWEEN SAID FLANGE AND THE ROLLED EDGE ON SAID CUP.