# US 8,770,425 B2 · Beverage can lid

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- Number: US 8,770,425 B2
- Document ID: US8770425B2
- Status: Granted
- Kind: B2
- Application number: 12/997,383
- Filed: 2009-06-03
- Published: 2011-10-06
- Granted: 2014-07-08
- Earliest claimed: 2008-06-12
- Assignees: Canrec AG
- Applicants: Alexander Schley; Arnoulf Keil
- Inventors: Alexander Schley; Arnoulf Keil
- Web page: https://patentgrep.com/patent/US8770425B2

## CPC

- B65D 17/4014: {and provided with attached means for reclosing or resealing}
- B65D 2517/0014: pivot tab and push-down tear panel
- B65D 2517/0041: in the form of a cover
- B65D 2517/0043: in the form of a plug
- 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 beverage can with a rotating lid (2) is attached to a rivet (5) in the can lid (D) and can be turned from an open rotating position to a closed rotating position above the pouring opening (7) and back. The rotating lid (2) at least partially takes the form of a bent snap disk (S) that can be moved by the application of force perpendicular to the lid plane, which bends the disk past a trigger point, from a stable first bending state into a stable second bending state in which the outer rim (10) of the rotating lid (2) is pressed against the rim lid (9) that delimits the pouring opening (7) with a certain closing pressure. The snap disk (S) moves back into its first bending state by re-applying force.

## Claims

### Claim 1

A seal for a beverage can, comprising:
a rotating lid (2) that is connected to a rivet (5) in a can lid (D) and is configured to be turned from an open rotating position into a closed rotating position above a pouring opening (7) and back, wherein the rotating lid at least partially takes the form of a bent snap disk (S) that can be moved by the application of force perpendicular to a plane of a lid rim (9),
wherein said application of force bends the disk past a trigger point, from one stable first bending state to a stable second bending state in which the outside rim (10) of the rotating lid (2) is pressed with a certain closing force against the lid rim (9) that delimits the pouring opening (7), and from which the snap disk (S) returns to the first bending state by renewed application of force, wherein a press-in tab (1) used for opening which is connected above the rotating lid (2) to the rivet (5) of the can lid (D) as the rotating lid (2), where the rotating lid is held against the lid rim (9) that delimits the pouring opening (7) by a press-in tip (6) of the press-in tab (1), which is pulled up at the end opposite the press-in tip, supported against the can lid (D) and locked, and wherein said rotating lid does not provide an opposite bearing end formed by a lever that radially extends from the rivet and that is located behind the rivet when viewed from the snap disk for said application of force.

### Claim 2 (depends on 1)

The seal according to claim 1, wherein at least in the second bending state, the rotating lid (2) extends slightly above or below the lid rim (9) that delimits the pouring opening (7) or projects into it or extends around it.

### Claim 3 (depends on 1)

The seal according to claim 1, wherein the rotating lid (2) is attached to a rivet (5) with a fastening tab (8), which extends beyond the rivet (5) as seen from the snap disk (S) to an operating element (15) on the opposite side.

### Claim 4 (depends on 1)

The seal according to claim 1, wherein a support (3) is hinged to the end of the press-in tab (1) opposite the press-in tip (6), which can latch downwards into a notch (4) in the can lid (D) once the pouring opening (7) has been pressed open and the rotating lid (2) has been turned over the pouring opening (7), wherein the end of the press-in tab (1) opposite the press-in tip is pulled up, so that the rotating lid (2), which has been moved to the closed rotating position, is pressed against the can lid rim (9) that delimits the pouring opening (7) by the press-in tip (6) of the press-in tab (1).

### Claim 5 (depends on 4)

The seal according to claim 4, wherein the support (3) and the press-in tab (1) are made of a single piece, wherein the support is partially cut out of the press-in tab and/or the support (3) is connected to the press-in tab (1) by a folded edge at its end opposite the rivet (5) and/or that the length of the support (3) is smaller than approx. half of the length of the press-in tab (1) and larger than approx. one third of the length of the press-in tab (1) and/or the angle of the press-in tab (1) to a mirror plane is in the latched, locked position between 30° and 45°.

### Claim 6 (depends on 1)

The seal according to claim 1, wherein the press-in tab (1) is attached by a fastening tab (8) to the rivet (5), wherein the fastening tab is partially cut out of the press-in tab material.

### Claim 7 (depends on 4)

The seal according to claim 4, wherein the rivet (5) and/or the notch (4) are made of the same piece of material as the can lid (D).

### Claim 8 (depends on 1)

The seal according to claim 1, wherein an outer rim (10) of the rotating lid (2) and the lid rim (9) that delimits the pouring opening (7) are shaped to form a pressure fitting.

### Claim 9 (depends on 1)

The seal according to claim 1, wherein the can rim (3) has a guide groove (11) for holding a protrusion (12) on the bottom of the rotating lid (2).

### Claim 10 (depends on 1)

The seal according to claim 1, wherein the rotating lid (2) has reinforcement corrugations (13) near the rivet (5), next to it or on the side opposite the press-in tip (6).

### Claim 11 (depends on 1)

The seal according to claim 1, wherein the can lid (D) has a limit stop (14) for the rotating lid (2) in its locked position.

### Claim 12 (depends on 1)

The seal according to claim 1, wherein the rotating lid (2) is at least partially coated with sealing material.

### Claim 13 (depends on 1)

The seal according to claim 1, wherein the material thickness of the can rim (D) is between 0.1 and 0.3 mm, and/or the material thickness of the press-in tab (1) is between 0.15 and 0.35 mm, and/or the material thickness of the rotating lid (2) is between 0.05 and 0.15 mm.

### Claim 14 (depends on 1)

A can lid with a seal according to claim 1.

### Claim 15 (depends on 14)

A can with a can lid according to claim 14.

### Claim 16 (depends on 13)

The seal according to claim 13, wherein the material thickness of the can rim (D) is approximately 0.224 mm, and/or the material thickness of the press-in tab (1) is approximately 0.265 mm, and/or that the material thickness of the rotating lid (2) is approximately 0.1 mm.
