Dispensing closure with integral piercing unit

a technology of piercing unit and closure, which is applied in the field of dispensing closures, can solve the problems of insufficient piercing structure to move the pieced membrane out, and many prior art designs are impractical

Inactive Publication Date: 2006-01-12
BERRY PLASTICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0026] The shell may have an outer skirt with a closure attaching mechanism, such as a thread, on the outer skirt for attaching the shell to the container. A tamper evide

Problems solved by technology

In the designs that piece a separation membrane (e.g. a foil layer), there is no sufficient piercing structure that moves the pieced membrane out of the way to insure comp

Method used

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  • Dispensing closure with integral piercing unit
  • Dispensing closure with integral piercing unit
  • Dispensing closure with integral piercing unit

Examples

Experimental program
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Effect test

Embodiment Construction

[0050] A single use unit dosage dispensing closure 10 according to the present invention is shown in the figures. The closure 10 is adapted to be attached to a container (not shown) with a threaded neck finish (e.g. a bottle).

[0051] The closure includes a shell 12, shown alone in FIGS. 1-7, which is adapted to be attached to the container. The shell has an outer skirt 14 with a closure attaching mechanism in the form of threads 16 on the outer skirt 14 for attaching the shell 12 to the container. The lower portion 18 of the skirt 14 may be formed as a tamper evident band, as is known in the art. The inner surface of the skirt may include a sealing ring 20 for sealing against the neck finish of the container.

[0052] The shell 12 has a tubular inner guide 22 with an open lower end in communication with the interior of the container. The inner guide 22 includes at least one sealing ring 24, a lower stop 26 at a lower end thereof and an upper stop 28 at an upper end thereof. The inner ...

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PUM

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Abstract

A single use unit dosage dispensing closure includes a shell attached to a container with an integral piecing member, an axial movable cap attached to the shell and a sealing member coupled to the cap. The shell has an inner guide in communication with the container and the cap is moveable along the guide. The cap has a chamber adapted to dispense material into the container. The chamber is sealed with the sealing member extending across a lower open end thereof, wherein axial movement of the cap along the inner guide member will cause the sealing member to be pieced by the piercing member to open the chamber and dispense the contents of the chamber into the container. The axial movable cap is formed from a material with a higher oxygen and moisture barrier property than the material forming the shell.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to cap dispensing closures for a container, more particularly to a dispensing closure with an integral piercing unit for piercing a chamber in the cap to dispense the contents there-of into the container. [0003] 2. Prior Art [0004] The broad concept of a container closure including a compartment for storing material separate from the container for selectively mixing with the container is very old and well known. [0005] U.S. Pat. No. 3,521,745 discloses a container with two compartments and a piercing member used to rupture the wall between the compartments to allow the material stored in one compartment to mix with the material in the other. [0006] U.S. Pat. No. 3,603,469 discloses a container closure having a cap that forms an interior chamber or reservoir for storing a substance. A reciprocating piercing member is used to rupture the reservoir to allow the material stored in the reser...

Claims

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Application Information

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IPC IPC(8): B65D25/08
CPCB65D51/2835
Inventor MOSHER, BRUCE A.MASTERSON, BRIAN P.NIGGEL, BRETT R.WALTERS, RONALD J.SMITH, ROBERT J.PETERS, JEFFREY A.BINDER, MARTIN E.
Owner BERRY PLASTICS CORP
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