# US 8,740,023 B2 · One-way valve for discharge regulation in tubes, tube with such a one-way valve and method for manufacturing such a one-way valve

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 8,740,023 B2
- Document ID: US8740023B2
- Status: Granted
- Kind: B2
- Application number: 13/578,401
- Filed: 2010-04-12
- Published: 2012-12-06
- Granted: 2014-06-03
- Earliest claimed: 2010-04-12
- Assignees: Hoffmann Neopac AG
- Applicants: Andreas Geiger; Christian Kubesch; Mario Schüpbach
- Inventors: Andreas Geiger; Christian Kubesch; Mario Schüpbach
- Web page: https://patentgrep.com/patent/US8740023B2

## CPC

- B65D 47/2025: {Flexible bung-type elements}
- Y10T 137/7879: Resilient material valve
- 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
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

The invention relates to a one-way valve (1; 1′) for discharge regulation of a tube, the one-way valve (1; 1′) comprising a sealing means (9) and a ring support (8), with the sealing means (9) being at least partially inserted in the ring support (8), wherein the sealing means (9) comprises a sealing element (11) and a support element (12) that has at least one opening (10), wherein the sealing element (11) is connected to the support element (12) by anchoring means (13) and rests on the ring support (12) in a closed state of the one-way valve (1; 1′) thereby covering the at least one opening (10), and wherein the sealing element (11) is of lower bending stiffness than the support element (12) and the ring support (8). The invention furthermore relates to a tube with a tube head (2; 2′) and a container (6), wherein such a one-way valve (1; 1′) is inserted in the neck (4) of the tube head (2; 2′). Moreover the invention relates to a method for manufacturing such a one-way valve (1; 1′).

## Claims

### Claim 1

A tube with a tube head, a container and a one-way valve comprising a sealing means and a ring support, with the sealing means being at least partially inserted in the ring support, wherein the sealing means comprises a sealing element and a support element with at least one opening, wherein the sealing element is connected to the support element by anchoring means and rests on the ring support in a closed state of the one-way valve thereby covering the at least one opening, wherein the sealing element is of lower bending stiffness than the support element and the ring support, wherein the sealing element of the sealing means is discoidal or has a discoidal part with its rim portion resting on the top end of the ring support in the closed state of the one-way valve,
wherein the tube head comprises a port, a hollow neck and a shoulder, with the port being connected to the neck and the neck being connected to the container via the shoulder, wherein the one-way valve being inserted in the neck with the ring support of the one-way valve being sealingly fixed to the neck, wherein the sealing element and the ring support of the one-way valve are designed such that the sealing element rests on the ring support when the tube is not compressed and that the sealing element is lifted off the ring support and at least partly off the support element when the tube is compressed thereby enabling the one-way valve to be in an open state and
wherein the ring support is fixed to the neck such that the sealing element is bent so far into the head space that it closes the entrance to the port when the tube is compressed and the internal pressure of the tube exceeds a certain limit.

### Claim 2 (depends on 1)

The tube according to claim 1, wherein the ring support and the support element are integrally formed, in particular integrally moulded.

### Claim 3 (depends on 1)

The tube according to claim 1, wherein the sealing element consists of a soft component and the support element and the ring support consist of a hard component.

### Claim 4 (depends on 1)

The tube according to claim 1, wherein the ring support is provided with positioning means on its outer surface.

### Claim 5 (depends on 1)

The tube according to claim 1, wherein as anchoring means the sealing means comprises an anchor and the support element comprises a recess for receiving the anchor or part of the anchor.

### Claim 6 (depends on 1)

The tube according to claim 1, wherein the port has a smaller inner diameter than the bore of the neck and wherein the ring support of the one-way valve is fixed to the neck such that a head space is provided between the sealing element of the sealing means of the one-way valve and the port.

### Claim 7 (depends on 1)

The tube according to claim 1, wherein the ring support of the one-way valve is fixed to the neck by force fitting.