Abstract: A crown for a bottle or other container has a top portion and an annular skirt that descends contiguously from the top portion. An opener assembly and an arrangement of frangible scoring lines on the crown allow for ease of opening the bottle or container. Corrugated embodiments provide material strengthening for a reduced gauge crown. Embodiments include entire crowns formed of non-metal materials, metal crowns having non-metal opener assemblies, and metal crowns having opener assemblies that are partially metal and partially non-metal. Unique techniques for attachment of such various opener assemblies are also disclosed.

Abstract: A crown for a bottle or other container has a top portion and an annular skirt that descends contiguously from the top portion. An opener assembly and an arrangement of frangible scoring lines on the crown allow for ease of opening the bottle or container. Corrugated embodiments provide material strengthening for a reduced gauge crown.

Abstract: A crown for a bottle or other container has a top portion and an annular skirt that descends contiguously from the top portion. An opener assembly and an arrangement of frangible scoring lines on the crown allow for ease of opening the bottle or container. Corrugated embodiments provide material strengthening for a reduced gauge crown.

Abstract: A reduced gauged crown for a container opening includes a corrugated panel portion such that the corrugation strengthens the crown material and allows less material to be used for the crown than would be used for an uncorrugated bottle cap.

Abstract: A crown, for a medical vial opening, has a top portion and a skirt surrounding the top portion. The skirt terminates at a lower edge defined in a first horizontal plane. An opener assembly is mounted to a portion of the top. A first scoring line extends from the portion of the top to which the opener assembly is mounted to the lower edge of the skirt in a continuous radial direction, and a second scoring line provides an upper radial segment extending from the opener assembly to the skirt along a radial axis, and a lower annular segment that extends 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.

Abstract: 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.

Abstract: A pull tab crown for a bottle or other container provides an opener secured to the top of the crown. The crown has an annular skirt with an annular edge. Score lines extend from the opener assembly to the skirt. One of the score lines is curvilinear and terminates at the annular edge. A second score line has as segment that extends from the opener assembly to an endpoint substantially spaced from the bottom annular edge of the skirt.

Abstract: A pull tab crown for a bottle or other container provides a pull tab ring and a pull tab secured to the top of the crown by a rivet to form a pull tab assembly. A seat in the top of the crown formed by an indentation allows the pull tab assembly to rest flush with the top of the crown. One or more score lines extend from the pull tab assembly to rim of the crown. One of the score lines has a segment that extends for a distance equidistant from the top of the crown and the edge of the crown. The score lines have a curved cross-sectional profile.

Abstract: 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.