Easy-pull bottle cap
AssigneeWorld Bottling Cap, LLC
InventorAbe Frishman
Life of this patent
Estimating the term…
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.
Claims20
A crown for a container opening, the crown having a rim with an edge and comprising:
- an opener assembly comprising
- a pull tab ring;
- a pull tab attached to the pull tab ring;
- a rivet 4 to secure the pull tab to the crown;
- and
- one or more cut lines extending from the rivet to the edge of the rim,
- the crown being comprised of a tinplate material that measures a hardness of approximately T4 on the Rockwell 30T Hardness Scale.
A crown for a container opening, the crown having a rim with an edge and comprising:
- an opener assembly comprising
- a pull tab ring;
- a pull tab attached to the pull tab ring;
- a lever under the pull tab;
- a rivet 4 to secure the pull tab and the lever to the crown;
- and
- one or more cut lines extending from the rivet to the edge of the rim,
- the crown being comprised of a tinplate material that measures in the range of 0.24 to 0.28 millimeters in thickness.
A method for manufacturing the crown of a bottle, the method comprising the steps of:
- forming the crown from tinplate comprising a hardness of T4 on the Rockwell Hardness Scale;
- securing to the crown with a rivet a pull tab ring connected to a pull tab and a lever under the pull tab;
- and
- forming one or more cut lines on the crown, wherein at least one of the cut lines extends from the rivet to the edge of the crown.
Dependencies are inferred from the claim text.