Dispensing closure with integral piercing unit
First Claim
1. A single use unit dosage dispensing closure comprising:
- a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide and a piercing element which includes a plurality of angled radial blades at a lower end of the inner guide;
an axial movable cap attached to the shell and moveable along the inner guide, the cap having a chamber therein adapted to hold material to be dispensed into the container; and
a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap along the inner guide will cause the piercing element to pierce the sealing layer and dispense the contents of the chamber into the container.
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Accused Products
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.
177 Citations
20 Claims
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1. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an outer skirt with a closure attaching mechanism on the outer skirt for attaching the shell to the container, the shell having an inner guide and a piercing element which includes a plurality of angled radial blades at a lower end of the inner guide;
an axial movable cap attached to the shell and moveable along the inner guide, the cap having a chamber therein adapted to hold material to be dispensed into the container; and
a sealing layer coupled to the cap, wherein the chamber is sealed with the sealing layer extending across a lower open end of the cap, wherein axial movement of the cap along the inner guide will cause the piercing element to pierce the sealing layer and dispense the contents of the chamber into the container. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A single use unit dosage dispensing closure comprising:
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a shell adapted to be attached to a container, the shell having an inner guide with an open end in communication with the container, the shell including a piercing element at a lower end of the inner guide, wherein the piercing element includes a plurality of angled radial blades at a lower end of the inner guide;
an axial movable cap attached to the shell and moveable along the inner guide, the cap engaging the inner guide and having a chamber therein adapted to hold a unit dosage of material to be dispensed into the container; and
a sealing member coupled to the cap, wherein the chamber is sealed with the sealing member extending across a lower open end of the chamber, wherein axial movement of the cap along the inner guide member will dispense the contents of the chamber into the container. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification