# US 7,410,071 B1 · Closure with liner cutter

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- Number: US 7,410,071 B1
- Document ID: US7410071B1
- Status: Granted
- Kind: B1
- Application number: 10/832,914
- Filed: 2004-04-27
- Granted: 2008-08-12
- Earliest claimed: 2004-04-27
- Assignees: Rexam Closures and Containers Inc.
- Inventors: Robert J. Seib; Christopher B. Clodfelter
- Web page: https://patentgrep.com/patent/US7410071B1

## CPC

- B65D 50/046: {and such deformation causes the disengagement of locking means, e.g. the release of a pawl-like element from a tooth or abutment, to allow removal of the closure by simultaneous rotation}
- B65D 51/223: {the outer closure having to be removed or inverted for piercing or cutting}
- B65D 2251/0015: of the 41-type
- B65D 2251/0093: Membrane
- B65D 2251/023: Ribs or recesses
- B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES

## 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.

## Claims

### Claim 1

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.

### Claim 2 (depends on 1)

The combination container and double shell closure with liner cutter of claim 1, said axial cutter and said radial cutter being isosceles triangles in shape.

### Claim 3 (depends on 1)

The combination container and double shell closure with liner cutter of claim 1, said outer skirt having diametrically opposed gripping ribs.

### Claim 4 (depends on 3)

The combination container and double shell closure with liner cutter of claim 3, said closure having a diametrically opposed closure lugs depending from a lower edge of said outer skirt, said closure lugs each spaced apart about 90 degrees from said gripping ribs.

### Claim 5 (depends on 4)

The combination container and double shell closure with liner cutter of claim 4, said closure lugs having an inner surface, an engaging surface, and a deflection surface.

### Claim 6 (depends on 1)

The combination container and double shell closure with liner cutter of claim 1, said deflection wall being radially inset from said peripheral edge of said top wall.

### Claim 7

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.

### Claim 8 (depends on 7)

The double shell closure with liner cutter of claim 7 wherein said closure is inverted, said x-cutter pierces said liner relieving pressure from a container and directing expelled particulate along said deflection wall and away from said top wall.

### Claim 9 (depends on 8)

The double shell closure of claim 8, said closure spreading a portion of said liner and directing said liner into said container.

### Claim 10 (depends on 8)

The double shell closure of claim 8, said deflection wall having a diameter greater than an outer diameter of a container neck thread.

### Claim 11 (depends on 8)

The double shell closure with liner cutter of claim 8, said axial and radial cutters having flat edges.