Can end and method of making same
AssigneeStolle Machinery Company, LLC
InventorsGREGORY H. BUTCHER, GREG S. WILLIAMS
Life of this patent
Estimating the term…
Abstract
A can end includes a severable panel, a peripheral scoreline, an opening mechanism such as a pull tab, a rivet coupling the pull tab to the severable panel, and a rivet base scoreline in the public side of the severable panel. The rivet base scoreline includes an arcuate head portion, first and second arm portions extending from the arcuate head portion, and first and second ends. The base of the rivet has a radius of curvature forming an intersection between the stem of the rivet and the public side of the severable panel. The arcuate head portion of the rivet base scoreline is contiguous with the radius of curvature.
Claims19
A can end structured to be affixed to a can body, the can end comprising:
- a severable panel having a product side structured to face toward the can body when the can end is affixed to the can body, and a public side structured to face away from the can body when the can end is affixed to the can body;
- a peripheral scoreline disposed on the public side of the severable panel proximate to an outer perimeter of the can end, the peripheral scoreline defining a periphery of the severable panel that is structured to be withdrawn or removed from the can end;
- an opening mechanism coupled to the severable panel, the opening mechanism being actuatable to sever the peripheral scoreline;
- a rivet disposed on the public side of the panel proximate to the periphery, the rivet coupling the opening mechanism to the severable panel, the rivet having a base disposed at the severable panel and a stem extending outwardly from the severable panel, the base of the rivet having a radius of curvature forming an intersection between the stem and the public side of the severable panel;
- and
- a rivet base scoreline in the public side of the severable panel, the rivet base scoreline including an arcuate head portion,
- wherein the arcuate head portion of the rivet base scoreline is within the radius of curvature of the base of the rivet.
A method of making a can end, the method comprising:
- forming a peripheral scoreline on a public side of the can end proximate to the outer perimeter of the can end to define a periphery of a severable panel portion that is structured to be withdrawn or removed from the can end, the panel portion having a product side opposite the public side,
- forming a rivet on the public side of the panel proximate to the periphery, the rivet including a base disposed on the public side of the panel portion and a stem extending outwardly from the public side of the panel portion;
- scoring the public side of the panel portion to form a rivet base scoreline;
- forming a radius of curvature at the base of the rivet between the public side of the panel portion of the can end and the stem of the rivet;
- and
- forming an arcuate head portion of the rivet base scoreline, the arcuate head portion being within the radius of curvature of the base of the rivet.
Dependencies are inferred from the claim text.