Patent ID: 7931167

Claim:
A cap comprising: a disc-shaped top; a depending cylindrical wall extending at a substantially right angle from a circumference of the top and terminating at a lower edge in an inward facing annular lip; a planar section extending horizontally outward from the lower edge of the wall; a downwardly- and outwardly-sloping ring at a lower edge of the planar section; at least two spaced perforations each extending across and through the planar section and the ring; a pair of frangible lines separate from the perforation lines and defining a frangible strip extending from the ring, across the planar section, up the wall and across at least a portion of the disc-shaped top; and a pull tab attached to the frangible strip adapted for destructive removal of the cap by pulling the pull tab, wherein pulling the pull tab causes the frangible lines to tear and release the frangible strip from the ring, the planar section and at least part of the disc-shaped top.