Patent ID: 8276773

Claim:
A crown for a container opening, the crown comprising: a frangible crown cap body comprising: a closed top having: a recessed seat having a center portion, and an outer shoulder surrounding the recessed seat and extending upward from the recessed seat; and, a skirt extending downward from the outer shoulder, the skirt having: an annular sidewall, and a bottom annular edge; an opener assembly comprising: a pull tab ring seated in the recessed seat of the closed top; a pull tab attached to the pull tab ring; a rivet fastening the pull tab to the center portion of the recessed seat; and, a frangible scoring arrangement comprising: a score line extending in a continuous radial direction from the center portion of the recessed seat to the bottom annular edge of the skirt; and, a curvilinear score comprising: an upper radial segment extending in a continuous radial direction from the center portion of the recessed seat to the annular sidewall of the skirt, and a lower annular segment extending circumferentially along the annular sidewall of the skirt from the upper radial segment to an endpoint substantially spaced from the bottom annular edge of the skirt.