Closure with liner cutter
AssigneeRexam Closures and Containers Inc.
InventorsRobert J. Seib, Christopher B. Clodfelter
Life of this patent
Estimating the term…
Abstract
A closure having a top wall and a skirt depending from a peripheral edge of said top wall. The closure includes an inner skirt depending from the top wall having at least one thread for helically attaching to a container neck. A deflection wall extends from the top wall having an inner diameter greater than a container neck. Extending from the top wall is a cutting device, defined by an axial cutter and a radial cutter for piercing a liner and cutting the liner about a circumference less than 360 degrees such that the liner is partially attached when the cutting process is completed.
Claims11
A combination container and double shell closure with liner cutter, comprising:
- a container having a neck defining an opening and a liner positioned over said opening;
- container lugs extending from a shoulder of said container;
- a closure having a top wall and a peripheral edge;
- an outer skirt depending downwardly from said peripheral edge of said top wall;
- an inner skirt depending downwardly from said top wall having an outer surface and an inner surface, a thread helically extending along said inner surface of said inner skirt, and a plurality of strengthening ribs depending downwardly from said top wall along said outer surface of said inner skirt;
- a deflection wall extending upwardly from said top wall;
- a cutter extending from said top wall defining an axial cutter and a radial cutter formed of intersecting triangles wherein said axial triangle extends above said radial triangle.
A double shell closure with liner cutter, comprising:
- a top wall having a peripheral edge;
- an outer skirt depending downwardly from said peripheral edge;
- an inner skirt depending downwardly from said top wall having an inner surface with a thread extending helically along said inner surface of said inner skirt and a plurality of ribs depending from said top wall along said outer surface of said inner skirt;
- a deflection wall extending upwardly from said top wall and radially inset from said peripheral edge;
- an x-cutter defining an axial cutter and a radial cutter, said axial cutter and said radial cutter each formed by an isosceles triangle, said isosceles triangles being perpendicular and intersecting along respective centerlines;
- said x-cutter cutting a liner through a radial arc between about 200 degrees and 340 degrees.
Dependencies are inferred from the claim text.