Bottle crown
A crown for a bottle or other container, the crown comprised of a pull tab ring and a pull tab secured to the crown by a rivet and one or more cut lines between the rivet and the rim of the crown. The crown may be formed from tinplate with a hardness of T4 as measured by the Rockwell 30T Hardness Scale so that the crown may be opened and removed from the container the a force of approximately 2.5 Kg.
1. A crown cap for a bottle opening, the crown cap comprising:
a crown cap body comprising:
a top portion having a center;
a skirt surrounding the top portion, the skirt having angels, wherein the angels terminate at a lower edge defined in a first horizontal plane;
an opener assembly mounted to the top portion;
a first scoring line extending from the center of the top portion to the lower edge of the skirt in a continuous radial direction; and
a second scoring line comprising:
an upper radial segment extending in a substantially linear direction from the center of the top portion to the skirt along a radial axis; and,
a lower annular segment extending circumferentially along the skirt in an annular direction and extending from a terminus of the upper radial segment, the lower annular segment defined in a second horizontal plane equidistant to the first horizontal plane associated with the lower edge of the skirt.
2. The crown 2 of claim 1 , the opener assembly further comprising a lever under the pull tab.
3. The crown of claim 1 , wherein at least one of the scoring lines is deeper near the lower edge of the skirt than near the center.
4. The crown of claim 1 , wherein the crown comprises at least one of the following numbers of angels: 21, 27 or 28.
5. The crown of claim 1 , comprising a divot on the top portion to facilitate manual crown removal.
6. The crown of claim 1 , further comprising an interior under portion opposite of and defined by the top portion and the skirt; a liner fastened to the under portion.
7. The crown of claim 1 , further comprising a cushion on the pull tab ring.
8. The crown of claim 1 , further comprising a thickness of less than approximately 0.28 mm.
9. The crown of claim 1 , further comprising a thickness in the range of from 0.24 to 0.28 millimeters.
10. The crown of claim 1 , wherein at least one of the score lines comprises a square cross-sectional profile.
11. The crown of claim 1 , wherein at least one of the score lines comprises a v-shaped cross-sectional profile.
12. The crown of claim 1 , wherein at least one of the score lines comprises a curved cross-sectional profile.
13. The crown of claim 1 , wherein the opener assembly further comprises a pull tab having a tab portion and a pull tab ring extending from the tab portion.
14. The crown of claim 13 , where in the top portion further comprises an uppermost portion, the crown further comprising a pull tab ring seat formed in the uppermost portion and the pull tab ring is disposed in the pull tab ring seat and is substantially flush with the uppermost portion of the crown.
15. The crown of claim 14 , further comprising a rivet securing the pull tab to the top portion of the crown.