Valve closure

• US 20060249545A1
• Filed: 04/28/2004
• Published: 11/09/2006
• Est. Priority Date: 05/07/2003
• Status: Abandoned Application

• Current Assignee: Obrist Closures Switzerland GmbH (Berry Global Group Inc.)
• Original Assignee: Crown Packaging Technology Incorporated (Crown Holdings Incorporated)
• Inventors: Ramsey, Christopher Paul
• Application Number:
  US10/555,490
• Publication Number:
  US 20060249545A1
• Time in Patent Office: Days
• US Class Current: 222/494
• CPC Class Codes: B65D 47/2031 the element being formed by a slit, narrow opening or constrictable spout, the size of the outlet passage being able to be varied by increasing or decreasing the pressure B65D47/2025 takes precedence

Abstract

A valve closure for a container, having a body, a valve and a lid. The valve is positioned across the opening of the container and itself has an opening through which the contents of the container may be dispensed. The lid is moveable relative to the body between open and closed positions and is shaped to block the valve opening, when the lid is in its closed position. The lid has a projection, which forms a peripheral seal around the valve opening, when the lid is in its closed position, and within the periphery of the projection, the shape of the lid substantially conforms to the shape of the valve and/or body, to minimise the volume therebetween.

Claims

1. A closure for a container, comprising:

a body,

a valve, having an opening through which the contents of the container may be dispensed,

a lid, moveable between open and closed positions relative to the body, and shaped to block the opening in the valve, when the lid is in its closed position,

an annular projection formed on the lid, wherein the projection forms an annular peripheral seal around the valve opening when the lid is in its closed position, and

wherein the shape of the lid within the periphery of the projection substantially conforms to the shape of the body and/or valve within the peripheral seal, such that when the lid is in its closed position it contacts the body and/or valve over substantially the whole of the area thereof within the peripheral seal to minimize the volume therebetween.

2. A closure according to claim 1, wherein the body has a sealing face and the projection on the lid engages with the sealing face of the body to form a peripheral seal around the valve opening.

3. A closure according to claim 2, wherein the projection and the sealing face of the body are adapted to form a bore seal therebetween.

4. A closure according to claim 1, wherein the valve is formed integrally with the body.

5. A closure according to claim 1, wherein the valve is a self-closing valve having a flange adapted to be constrained by the closure body, a valve head defining the valve opening and a connecting wall therebetween.

6. A closure according to claim 5, wherein the valve connecting wall has a substantially linear configuration to allow the shape of the lid within the projection to substantially conform to the shape of the body and/or valve within the peripheral seal.

7. A closure according to claim 1, wherein the lid has a plug inside the periphery of the projection and the plug is shaped to substantially confirm to the shape of the body/valve within the peripheral seal.

8. A closure according to claim 1, wherein the valve is independent from the body and retained therein by a clip.

9. A closure/container combination comprising

a container,

a valve having an opening through which the contents of the container may be dispensed,

a closure, being moveable between open and closed positions relative to the container, and shaped to block the opening in the valve, when the closure is in its closed position,

a projection formed on the closure, wherein the projection forms a peripheral seal around the valve opening when the closure is in its closed position, and

wherein the shape of the closure within the periphery of the projection substantially conforms to the shape of the container and/or valve within the peripheral seal when the lid is in its closed position, to minimize the volume therebetween.